''Leptospermum'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of shrubs and small trees in the myrtle

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Myrtaceae Myrtaceae, the myrtle family, is a family of dicotyledonous plants placed within the order Myrtales. Myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, and eucalyptus are some notable members of this group. All spe ...

commonly known as tea trees, although this name is sometimes also used for some species of ''

Melaleuca ''Melaleuca'' () is a genus of nearly 300 species of plants in the myrtle family, Myrtaceae, commonly known as paperbarks, honey-myrtles or tea-trees (although the last name is also applied to species of '' Leptospermum''). They range in size ...

''. Most species are

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

to Australia, with the greatest diversity in the south of the continent, but some are native to other parts of the world, including

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 List of islands of New Zealand, smaller islands. It is the ...

and

Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...

. Leptospermums all have five conspicuous

petal Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usuall ...

s and five groups of

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filam ...

s which alternate with the petals. There is a single style in the centre of the flower and the fruit is a woody capsule. The first formal description of a leptospermum was published in 1776 by the

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

botanists

Johann Reinhold Forster Johann Reinhold Forster (22 October 1729 – 9 December 1798) was a German Reformed (Calvinist) pastor and naturalist of partially Scottish descent who made contributions to the early ornithology of Europe and North America. He is best known ...

and his son

Johann Georg Adam Forster Johann George Adam Forster, also known as Georg Forster (, 27 November 1754 – 10 January 1794), was a German naturalist, ethnologist, travel writer, journalist and revolutionary. At an early age, he accompanied his father, Johann Reinhol ...

, but an unambiguous definition of individual species in the genus was not achieved until 1979. Leptospermums grow in a wide range of habitats but are most commonly found in moist, low-nutrient soils. They have important uses in

horticulture Horticulture is the branch of agriculture that deals with the art, science, technology, and business of plant cultivation. It includes the cultivation of fruits, vegetables, nuts, seeds, herbs, sprouts, mushrooms, algae, flowers, seaweeds and no ...

, in the production of honey and in floristry.

Description

Plants in the genus ''Leptospermum'' range in size from prostrate shrubs to small trees, and have fibrous, flaky or papery bark. The leaves are arranged alternately and are relatively small, rigid and often aromatic when crushed. The flowers may be solitary or in groups, and have bracteoles and

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined ...

s which in most species fall off as the flower opens. There are five spreading, conspicuous petals which are white, pink or red. There are many stamens which are usually shorter than the petals and in five groups opposite the stamens, although they often appear not to be grouped. A simple style usually arises from a small depression in the ovary which has from three to five sections in most species, each section containing a few to many

ovule In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the '' integument'', forming its outer layer, the ''nucellus'' (or remnant of the megasporangium), and the f ...

s. The fruit is a woody capsule which opens at the top to release the seeds, although in some species this does not occur until the plant, or the part of it, dies.

Taxonomy and naming

The first formal description of a leptospermum was published by Johann Reinhold Forster and Johann Georg Adam Forster in their 1776 book, ''

Characteres Generum Plantarum ''Characteres generum plantarum'' (complete title , "Characteristics of the types of plants collected, described, and delineated during a voyage to islands of the South Seas, in the years 1772–1775 by Johann Reinhold Forster and Georg Forster ...

''. In 1876,

George Bentham George Bentham (22 September 1800 – 10 September 1884) was an English botanist, described by the weed botanist Duane Isely as "the premier systematic botanist of the nineteenth century". Born into a distinguished family, he initially studi ...

described twenty species, but noted the difficulty of discriminating between species. ("The species are very difficult to discriminate.") Of the species he named, only ten remain as valid. In 1979,

Barbara Briggs Barbara Gillian Briggs (born 1934) is one of the foremost Australian botanists. The '' IK'' lists 205 names of plants which have been published or co-published by her. She was one of the botanists in the Angiosperm Phylogeny Group, of th1998APG ...

and Laurie Johnson published a classification of the family Myrtaceae in the ''

Proceedings of the Linnean Society of New South Wales The Linnean Society of New South Wales promotes ''the Cultivation and Study of the Science of Natural History in all its Branches'' and was founded in Sydney, New South Wales (Australia) in 1874 and incorporated in 1884. History The Society succ ...

''. Although there have been revisions to their groupings, their paper allowed a systematic examination of species in the genus ''Leptospermum''. In 1989, Joy Thompson published a complete revision of the genus. In 2000, O'Brien ''et al.'' published yet another revision, using matK-based evidence to suggest that ''Leptospermum'' is

polyphyletic A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of conver ...

, and should be split into persistent, Western non-persistent, and Eastern non-persistent fruiting plants, with ''Leptospermum spinescens'' as an outlier. However, neither phylogeny has been universally accepted. Current estimates recognize about ninety species of ''Leptospermum''. The common name ''tea tree'' derives from the practice of early Australian settlers who soaked the leaves of several species in boiling water to make a

herbal tea Herbal teas, also known as herbal infusions and less commonly called tisanes (UK and US , US also ), are beverages made from the infusion or decoction of herbs, spices, or other plant material in hot water. Oftentimes herb tea, or the plain term ...

Distribution and habitat

Most ''Leptospermum'' species are endemic to Australia where most are found in southern areas of the country. They are most common in moist, nutrient-poor soils although they sometimes occupy other situations. '' Leptospermum laevigatum'' is usually found growing on beach sand and '' L. riparium'' growing in

Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...

n rainforest on the edges of rivers. '' Leptospermum amboinense'' extends from

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

to Southeast Asia and three species, '' L. javanicum'', '' L. parviflorum'' and '' L. recurvum'' are endemic to southeast Asia. ''L. recurvum'' is only found on

Mount Kinabalu Mount Kinabalu ( ms, Gunung Kinabalu, Dusun: ''Gayo Ngaran or Nulu Nabalu'') is the highest mountain in Borneo and Malaysia. With an elevation of , it is third-highest peak of an island on Earth, and 20th most prominent mountain in the worl ...

Sabah Sabah () is a state of Malaysia located in northern Borneo, in the region of East Malaysia. Sabah borders the Malaysian state of Sarawak to the southwest and the North Kalimantan province of Indonesia to the south. The Federal Territory ...

. ''

Leptospermum scoparium ''Leptospermum scoparium'', commonly called mānuka, () mānuka myrtle, New Zealand teatree, broom tea-tree, or just tea tree, is a species of flowering plant in the myrtle family Myrtaceae, native to New Zealand (including the Chatham Islan ...

'' is one of the most widespread in the genus and occurs in

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

, Victoria, Tasmania and

, where it is one of the most widespread and important native shrub species.

Ecology

In Australia, ''Leptospermum'' species are sometimes used as food plants by the

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. Th ...

e of hepialid

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of ...

s of the genus '' Aenetus'', including ''A. lewinii'' and ''A. ligniveren''. These burrow horizontally into the trunk then vertically down.

Uses

Use in horticulture

Most ''Leptospermum'' species make desirable garden plants. The hardiest species (''L. lanigerum, L. liversidgei, L. polygalifolium, L. rupestre, L. scoparium'') are hardy to about to ; others are sensitive to frost. They tolerate most soils, but many suppliers specify ericaceous (i.e. lime-free) compost with good drainage and full sun. Established plants are

drought A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, an ...

tolerant. They are often found as hedge plants on the west coast of the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...

, and some species are popular for cultivation as

bonsai Bonsai ( ja, 盆栽, , tray planting, ) is the Japanese art of growing and training miniature trees in pots, developed from the traditional Chinese art form of ''penjing''. Unlike ''penjing'', which utilizes traditional techniques to produce ...

. Many

cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture ...

s exist.

Use in floristry

These flowers are also grown in double cultivars and are used in floral designs. However, they do not last when out of water and the single flowers do not last when wired. The 'Pacific Beauty' (''Leptospermum polygalifolium'') is a useful flower to use in large church-service bowls and function arrangements, however use of ''Leptospermum'' in corporate designs is less desirable as they dry and drop when subjected to heating and air conditioning.

Honey production

The nectar from the flowers is harvested by bees, yielding

Leptospermum honey ''Leptospermum'' is a genus of shrubs and small trees in the myrtle Family (biology), family Myrtaceae commonly known as tea trees, although this name is sometimes also used for some species of ''Melaleuca''. Most species are endemism, endemic t ...

, which is marketed as Manuka honey. Honey produced from Australian ''

Leptospermum polygalifolium ''Leptospermum polygalifolium'', commonly known as tantoon, jellybush or yellow tea tree, is a species of shrub or tree of the family Myrtaceae that is endemic to eastern Australia, including Lord Howe Island. It has thin bark, elliptical leave ...

'' is also known as ''jelly bush'' or the ''lemon-scented tea tree''.Native honey a sweet antibacterial
''Australian Geographic'', March 3, 2011.

Species

The following is a list of species accepted by the

Australian Plant Census The Australian Plant Census (APC) provides an online interface to currently accepted, published, scientific names of the vascular flora of Australia, as one of the output interfaces of the national government Integrated Biodiversity Information Syst ...

as at March 2020, apart from two species ('' L. javanicum'' and '' L. recurvum'') only occurring outside Australia that are accepted by the

Royal Botanic Gardens, Kew Royal Botanic Gardens, Kew is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. An internationally important botanical research and education institution, it employs 1,10 ...

:Kew World Checklist of Selected Plant Families
/ref> *'' Leptospermum amboinense'' Blume - Qld, Malesia *'' Leptospermum anfractum'' A.R.Bean - Qld *''

Leptospermum arachnoides ''Leptospermum arachnoides'', commonly known as the spidery tea-tree,Les Robinson – Field Guide to the Native Plants of Sydney, page 52 is a species of shrub that is endemic to eastern Australia. It has rough bark, crowded linear to lance-sha ...

'' Gaertn. spidery tea-tree - Qld, NSW *''

Leptospermum argenteum ''Leptospermum argenteum'', commonly known as the Mt Royal tea-tree, is a species of shrub that is endemic to the higher parts of Barrington Tops in New South Wales. It has smooth bark, stems with a flange along the sides, broad leaves, white f ...

'' Joy Thomps. Mt Royal tea-tree - NSW *'' Leptospermum barneyense'' A.R.Bean - Qld *''

Leptospermum benwellii ''Aggreflorum benwellii'' is a species of shrub that is endemic to the Nymboida National Park in New South Wales. It has smooth bark, young branches with conspicuous flanges, narrow elliptical leaves, white flowers and thin-walled, bell-shaped to ...

'' A.R.Bean - NSW *''

Leptospermum blakelyi ''Leptospermum blakelyi'' is a species of shrub that is endemic to rocky clifftops near Lithgow in New South Wales. It has densely silky young stems, egg-shaped to elliptical leaves and white or pink flowers. Description ''Leptospermum blakel ...

'' Joy Thomps. - NSW *'' Leptospermum brachyandrum'' ( F.Muell.) Druce - Qld, NSW *''

Leptospermum brevipes ''Gaudium brevipes'', commonly known as the slender tea-tree, is a species of shrub or small tree that is endemic to eastern Australia. It has fibrous bark on the main stems, smooth bark on young stems, narrow elliptical to narrow egg-shaped lea ...

'' F.Muell. slender tea-tree - Qld, NSW, Vic *''Leptospermum brevipes F.Muell. × Leptospermum microcarpum'' Cheel - Qld *'' Leptospermum confertum'' Joy Thomps. - WA *'' Leptospermum continentale'' Joy Thomps. prickly tea-tree - NSW, Vic, SA *''

Leptospermum coriaceum ''Leptospermum coriaceum'', commonly known as green tea-tree or mallee teatree, is a shrub species that is Endemism, endemic to south-eastern and south-central Australia. It has smooth bark on the younger stems, elliptic to narrow egg-shaped lea ...

'' (F.Muell.) Cheel green tea-tree, mallee teatree - NSW, Vic, SA *''

Leptospermum crassifolium ''Leptospermum crassifolium'' is a species of shrub that is endemic to the Budawang Range in New South Wales. It has thin, rough bark that is shed annually, broadly elliptic leaves, white flowers borne singly on short side branches, and woody fru ...

'' Joy Thomps. - NSW *''

Leptospermum deanei ''Leptospermum deanei'', commonly known as Deane's tea-tree, is a species of rare, slender shrub that is endemic to the northern suburbs of Sydney. It has bark peeling in long strips from the older stems, hairy young stems, narrow elliptical to ...

'' Joy Thomps. - NSW *''

Leptospermum deuense ''Leptospermum deuense'' is a species of shrub that is endemic to New South Wales. It is a leafy, densely branched shrub with rough bark on the older stems, elliptical leaves with a glossy upper surface, white flowers arranged singly or in pairs ...

'' Joy Thomps. - NSW *''

Leptospermum divaricatum ''Gaudium divaricatum'' is a species of plant that is Endemism, endemic to inland New South Wales. It is an erect or weeping shrub with compact fibrous bark, elliptical to egg-shaped leaves, white flowers arranged singly on short wikt:axil, axill ...

'' Schauer - NSW *''

Leptospermum emarginatum ''Leptospermum emarginatum'', commonly known as the twin-flower tea-tree or twin flower teatree, is a species of shrub that is endemic to south-eastern Australia. It has rough bark on the older stems, lance-shaped leaves with the narrower end to ...

H.L.Wendl. Heinrich Ludolph (Ludwig) Wendland (29 April 1791, in Hanover – 15 July 1869, in Teplice) was a botanist who authored a number of ''Acacia'' species. Heinrich Wendland was born on 29 April 1791 into a family well known in botany. His father Joha ...

ex Link - NSW, Vic *''

Leptospermum epacridoideum ''Leptospermum epacridoideum'' is a species of plant that is endemic to a restricted area of the South Coast of New South Wales. It is a bushy shrub with compact bark, elliptical to more or less circular leaves, white flowers arranged singly on ...

'' Cheel - NSW *''

Leptospermum erubescens ''Leptospermum erubescens'', commonly known as the roadside tea tree, is a species of shrub that is endemic to southwest of Western Australia. It has thin, fibrous bark, egg-shaped leaves, small white flowers and woody fruit. Description ''Lept ...

'' Schauer - WA *''

Leptospermum exsertum ''Leptospermum exsertum'' is a small, sparsely branched shrub that is endemic to Western Australia. It has thick, wedge-shaped to heart-shaped leaves with the narrower end towards the base, often with a sharply pointed tip, white flowers arranged ...

'' Joy Thomps. - WA *'' Leptospermum fastigiatum''

S.Moore Spencer Le Marchant Moore (1 November 1850 – 14 March 1931) was an English botanist. Biography Moore was born in Hampstead. He worked at the Royal Botanic Gardens, Kew, from about 1870 to 1879, wrote a number of botanical papers, and then wo ...

- WA, SA *'' Leptospermum glabrescens''

N.A.Wakef. Norman Arthur Wakefield (28 November 1918 – 23 September 1972) was an Australian teacher, naturalist, paleontologist and botanist, notable as an expert on ferns. He described many new species of plants. Wakefield was born in Romsey, Victor ...

- Vic *''

Leptospermum glaucescens ''Leptospermum glaucescens'', commonly known as the blue-green tea tree or smoky tea tree, is a species of shrub or small tree that is endemic to Tasmania. It has elliptical to egg-shaped leaves that are often greyish green, white flowers about ...

'' S.Schauer - Tas *'' Leptospermum grandiflorum''

Lodd. The Loddiges family (not uncommonly mis-spelt ''Loddige'') managed one of the most notable of the eighteenth and nineteenth century plant nurseries that traded in and introduced exotic plants, trees, shrubs, ferns, palms and orchids into Europea ...

G.Lodd. & W.Lodd. - Tas *''

Leptospermum grandifolium The ''Leptospermum grandifolium'', commonly known as mountain tea-tree or woolly teatree, is a species of shrub or small tree that is Endemism, endemic to south-eastern Australia. It has elliptical to egg-shaped leaves with a sharp point on the ...

'' Sm. - NSW, Vic *''

Leptospermum gregarium ''Leptospermum gregarium'' is a species of shrub that is endemic to eastern Australia. Its young stems are hairy the leaves are egg-shaped to lance-shaped with the narrower end towards the base, the flowers are white and arranged singly or in pai ...

'' Joy Thomps. - Qld, NSW *''

Leptospermum incanum ''Leptospermum incanum'' is a species of compact shrub that is endemic to Western Australia. It has hairy young stems, elongated egg-shaped leaves on a short petiole, relatively large white or pink flowers and fruit that fall from the plant when ...

Turcz. Nikolai Stepanovich Turczaninow ( ru , Николай Степанович Турчанинов, 1796 in Nikitovka, now in Krasnogvardeysky District, Belgorod Oblast, Russia – 1863 in Kharkov) was a Russian botanist and plant collector who ...

- WA *''

Leptospermum inelegans ''Leptospermum inelegans'' is a species of straggly shrub that is Endemism, endemic to Western Australia. It has only partly hairy young stems, egg-shaped to narrow elliptical leaves on a short Petiole (botany), petiole, relatively small white or ...

'' Joy Thomps. - WA *''

Leptospermum javanicum ''Leptospermum javanicum'' is a species of tree that is native to Myanmar, western and central Malesia. It has fibrous bark on the trunk, leaves that are much paler on the lower surface, relatively large white flowers and woody fruit. Descriptio ...

'' Blume - Myanmar, Thailand, Malaysia, Indonesia, Philippines *''

Leptospermum jingera ''Leptospermum jingera'', commonly known as the stringybark tea-tree, is a species of shrub that is endemic to Victoria, Australia. It has papery bark on the larger branches, smooth bark on the younger stems, narrow egg-shaped to elliptical leav ...

Lyne Lyne may refer to: Places * Division of Lyne, an electoral division in New South Wales, Australia * Lyne, Denmark, a town in southwest Denmark * Lyne, Surrey a village in southern England * River Lyne, a river of Cumbria in England * Lyne, Sco ...

Crisp CRISP may refer to: * Center for Research in Security and Privacy, largest research center for IT security in Europe * C-language Reduced Instruction Set Processor, an AT&T microprocessor design * Chesapeake Regional Information System for our Pat ...

- Vic *''

Leptospermum juniperinum ''Leptospermum juniperinum'', commonly known as the prickly tea tree, is a species of broom-like shrub that is endemic to eastern Australia. It has narrow, sharply pointed leaves, white flowers usually arranged singly on short side shoots and sma ...

'' Sm. - Qld, NSW *'' Leptospermum laevigatum'' ( Gaertn.) F.Muell. - NSW, Vic, SA, Tas *''

Leptospermum lamellatum ''Gaudium lamellatum'' is a species of shrub or small tree that is endemic to inland Queensland and has distinctive reddish, layered bark. It has narrow elliptical leaves, white flowers and small fruit that fall from the plant when mature. Descr ...

'' Joy Thomps. - Qld *'' Leptospermum lanigerum'' ( Sol. ex

Aiton Aiton may refer to: People *Aiton (surname) *Standard author abbreviation of William Aiton (1731 – 1793), Scottish botanist Places * Aiton, Cluj, a commune in Romania * Aiton, Savoie, a commune in France Other uses * Tai Aiton people, one of ...

) Sm. - Qld, NSW, Vic, SA, Tas *'' Leptospermum liversidgei'' R.T.Baker &

H.G.Sm. Henry George Smith (26 July 1852 – 19 September 1924) was an Australian chemist whose pioneering work on the chemistry of the essential oils of the Flora of Australia, Australian flora achieved worldwide recognition. Smith was born at Littleb ...

- Qld, NSW *''

Leptospermum luehmannii ''Leptospermum luehmannii'' is a species of shrub or small tree that is endemic to Queensland. It has glossy green elliptic leaves, white flowers and fruit that falls from the plant shortly after the seeds are released. Description ''Leptosperm ...

'' F.M.Bailey - Qld, NSW *'' Leptospermum macgillivrayi'' Joy Thomps. - WA *'' Leptospermum macrocarpum'' ( Maiden & Betche) Joy Thomps. - NSW *''

Leptospermum madidum ''Leptospermum madidum'' is a species of shrub or small tree that is Endemism, endemic to north-western Australia. It has weeping branches, smooth bark, pale green linear leaves, small white flowers and thin-walled fruit. Description ''Leptospe ...

'' A.R.Bean - Qld, WA, NT **''Leptospermum madidum'' A.R.Bean subsp. ''madidum'' - Qld **''Leptospermum madidum'' subsp. ''sativum'' A.R.Bean - WA, NT *'' Leptospermum maxwellii'' S.Moore - WA *''

Leptospermum microcarpum ''Leptospermum microcarpum'' is a species of shrub that is endemic to eastern Australia. It has elliptical to lance-shaped leaves with a sharp point on the tip, white flowers and small fruit that falls from the plant shortly after the seeds are ...

'' Cheel - Qld, NSW *''

Leptospermum micromyrtus ''Leptospermum micromyrtus'' is a species of spreading shrub that is endemic to higher areas of south-eastern Australia. It has broad, egg-shaped leaves with the narrower end towards the base, white flowers and fruit that remain on the plant at ...

'' Miq. - NSW, Vic *'' Leptospermum minutifolium'' C.T.White - Qld, NSW *'' Leptospermum morrisonii'' Joy Thomps. - NSW *''

Leptospermum multicaule ''Gaudium multicaule'', commonly known as the silver tea-tree, is a species of shrub that is endemic to south eastern Australia. It has linear, narrow elliptical or narrow egg-shaped leaves, white or pink flowers usually borne singly on short s ...

'' A.Cunn. - NSW, ACT, Vic *'' Leptospermum myrsinoides''

Schltdl. Diederich Franz Leonhard von Schlechtendal (27 November 1794, Xanten – 12 October 1866, Halle an der Saale, Halle) was a German botanist. He studied in Berlin, in 1819 becoming curator of the Botanical Garden in Berlin, Royal Herbarium. He was ...

- NSW, Vic, SA *''

Leptospermum myrtifolium ''Leptospermum myrtifolium'', commonly known as the myrtle tea-tree or grey tea-tree, is a species of shrub that is Endemism, endemic to south eastern Australia. It has broad egg-shaped to elliptical leaves, white flowers usually borne singly on ...

'' Sieber ex

DC. Augustin Pyramus (or Pyrame) de Candolle (, , ; 4 February 17789 September 1841) was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple of years de Candolle ...

- NSW, ACT, Vic *''

Leptospermum namadgiense ''Gaudium namadgiense'' is a species of small shrub that is endemic to areas near the border between New South Wales and the Australian Capital Territory. It has silky-hairy, narrow lance-shaped to elliptical leaves, usually white flowers borne s ...

'' Lyne - NSW, ACT *''

Leptospermum neglectum ''Leptospermum neglectum'' is a shrub or small tree that is endemic to Queensland. It has elliptical leaves that are silky-hairy at first, white flowers on short shoots in leaf axils and fruit with the remnants of the sepals attached but that fa ...

'' Joy Thomps. - Qld *''

Leptospermum nitens ''Leptospermopsis nitens'' is a species of slender shrub that is endemic to Western Australia. It has thin, fibrous bark, narrow egg-shaped to wedge-shaped leaves, white or pink flowers on short side branches and fruit with the sepals attached b ...

'' Turcz. - WA *'' Leptospermum nitidum'' Hook.f. - Tas *'' Leptospermum novae-angliae'' Joy Thomps. - Qld, NSW *''

Leptospermum obovatum ''Leptospermum obovatum'', commonly known as river teatree, is a species of shrub that is endemic to south-eastern continental Australia. It has egg-shaped or lance-shaped leaves that are narrower at the base, white flowers usually arranged sin ...

Sweet Sweetness is a basic taste most commonly perceived when eating foods rich in sugars. Sweet tastes are generally regarded as pleasurable. In addition to sugars like sucrose, many other chemical compounds are sweet, including aldehydes, keto ...

- NSW, Vic *'' Leptospermum oligandrum'' Turcz. - WA *''

Leptospermum oreophilum ''Leptospermum oreophilum'', commonly known as the rock tea tree, is a shrub that is endemic to the Glass House Mountains in southern Queensland. It has firm, rough bark on the older stems, elliptical leaves with a short, blunt point on the tip, ...

'' Joy Thomps. - Qld *''

Leptospermum pallidum ''Leptospermum pallidum'' is a species of spreading shrub that is Endemism, endemic to Queensland. It has thin, firm, rough bark, narrow lance-shaped leaves, white flowers arranged in groups of two or three on side shoots and fruit that remains o ...

'' A.R.Bean - Qld *''

Leptospermum parvifolium ''Leptospermum parvifolium'', commonly known as lemon-scented tea-tree, is a species of shrub that is Endemism, endemic to eastern Australia. It has thin, rough bark, egg-shaped leaves with the narrower end towards the base, white or pink flowers ...

'' Sm. - Qld, NSW *''

Leptospermum petersonii ''Leptospermum petersonii'', commonly known as lemon-scented teatree, is a species of shrub or small tree that is endemic to eastern Australia. It has thin, fibrous or flaky bark, often strongly-scented elliptic to lance-shaped leaves, white fl ...

'' F.M.Bailey - Qld, NSW *''

Leptospermum petraeum ''Leptospermum petraeum'' is a rigid, spreading plant that is endemic to a restricted area of New South Wales. It has thin, flaky bark, young stems that are hairy at first, aromatic, elliptical leaves, relatively large white flowers and fruit th ...

'' Joy Thomps. - NSW *''

Leptospermum polyanthum ''Gaudium polyanthum'' is a rigid, spreading shrub or small tree that is endemic to New South Wales. It has thin, rough bark, young stems that are hairy at first, elliptical leaves, relatively small white flowers and fruit are shed when the seeds ...

'' Joy Thomps. - NSW *''

'' Salisb. - Qld, NSW, Lord Howe Island ** ''Leptospermum polygalifolium'' subsp. ''cismontanum'' Joy Thomps. - Qld, NSW ** ''Leptospermum polygalifolium'' subsp. ''howense'' Joy Thomps. - Lord Howe Island ** ''Leptospermum polygalifolium'' subsp. ''montanum'' Joy Thomps. ** ''Leptospermum polygalifolium'' Salisb. subsp. ''polygalifolium'' - NSW **''Leptospermum polygalifolium'' subsp. ''transmontanum'' Joy Thomps. - Qld, NSW **''Leptospermum polygalifolium'' subsp. ''tropicum'' Joy Thomps. - Qld *''

Leptospermum purpurascens ''Leptospermum purpurascens'', commonly known as the purple-stemmed turkey bush, is a shrub or small tree that is endemic to far north Queensland, Australia. It has bark that is purple when new, elliptical to broadly lance-shaped leaves, relativ ...

'' Joy Thomps. - Qld *''

Leptospermum recurvum ''Leptospermum recurvum'' is a species of shrub or tree that is native to Mount Kinabalu in Malaysian Borneo and to Sulawesi. It has pale, flaky bark, broadly elliptical to almost round leaves, white flowers about wide and fruit that tend to rem ...

'' Hook.f. - Sabah, Sulawesi *''

Leptospermum riparium ''Leptospermum riparium'', commonly known as riverine tea-tree, is a species of straggling shrub that is endemic to Tasmania. It has flaky bark, crowded, lance-shaped leaves with the narrower end towards the base, relatively large white flowers ...

'' D.I.Morris - Tas *''

Leptospermum roei ''Leptospermum roei'' is a species of spreading shrub that is endemic to the southwest of Western Australia. It has thin, fibrous bark, long egg-shaped to narrow wedge-shaped leaves, white or pink flowers and small fruit that are shed with the s ...

Benth. George Bentham (22 September 1800 – 10 September 1884) was an English botanist, described by the weed botanist Duane Isely as "the premier systematic botanist of the nineteenth century". Born into a distinguished family, he initially studie ...

- WA *''

Leptospermum rotundifolium ''Leptospermum rotundifolium'', commonly known as round-leaved tea tree, is a species of flowering plants in the family Myrtaceae and is endemic to New South Wales, naturalised in Victoria and Western Australia. It is an erect shrub with more or ...

'' (Maiden & Betche) F.A.Rodway - NSW *''

Leptospermum rupestre ''Leptospermum rupestre'', commonly known as alpine tea-tree or prostrate tea-tree, is a flowering shrub in the myrtle family, Myrtaceae. It is endemic to Tasmania. In alpine areas it assumes a prostrate habit while in subalpine areas it appears ...

'' Hook.f. - Tas *'' Leptospermum rupicola'' Joy Thomps. - NSW *''

'' J.R.Forst. & G.Forst. - Vic, NSW, Tas, NZ *''

Leptospermum sejunctum ''Leptospermum sejunctum'' is a shrub that is endemic to the Nowra district in New South Wales. It has thin, grey bark, lance-shaped to elliptical leaves, white flowers and fruit that remain on the plant at maturity. Description ''Leptospermum ...

'' Joy Thomps. - NSW *''

Leptospermum semibaccatum ''Gaudium semibaccatum'' is a species of low, dense shrub that is endemic to eastern Australia. It has egg-shaped to narrow elliptical leaves with a blunt tip, white or pink flowers and hairy, flat-topped fruit that falls from the plant shortly ...

'' Cheel - Qld, NSW *''

Leptospermum sericatum ''Gaudium sericatum'' is a species of erect shrub that is Endemism, endemic to Queensland. It has thin, firm bark, narrow egg-shaped to elliptical leaves, white or pink flowers arranged usually singly on side shoots and fruit that falls from the ...

'' Lindl. - Qld *''

Leptospermum sericeum ''Leptospermopsis sericea'', commonly known as the silver tea tree, is a species of shrub that is Endemism, endemic to the south-west of Western Australia. It has thin, firm bark, egg-shaped leaves with the narrower end towards the base, relati ...

'' Labill. - WA *''

Leptospermum speciosum ''Aggreflorum speciosum'' is a species of flowering plant in the myrtle family Myrtaceaeshrub, and is endemic to eastern Australia. It has pale bark that is shed in strips, broadly lance-shaped to elliptical leaves, white flowers arranged singl ...

'' Schauer - Qld, NSW *'' Leptospermum spectabile'' Joy Thomps. - NSW *'' Leptospermum sphaerocarpum'' Cheel - NSW *''

Leptospermum spinescens ''Leptospermum spinescens'', commonly known as the spiny tea tree, is a species of spiny shrub that is Endemism, endemic to Western Australia. It has thick, egg-shaped to elliptical leaves on a short Petiole (botany), petiole, white or greenish ...

'' Endl. - WA *'' Leptospermum squarrosum'' Gaertn. - NSW *'' Leptospermum subglabratum'' Joy Thomps. - NSW *''

Leptospermum subtenue ''Leptospermum subtenue'' is a species of small shrub in the family Myrtaceae and is endemic to Western Australia. It has thick, elliptical, concave leaves, white or pink flowers and fruit that falls from the plant when mature. It occurs to the s ...

'' Joy Thomps. - WA *''

Leptospermum thompsonii ''Leptospermum thompsonii'', commonly known as the monga tea-tree, is a species of tall shrub that is Endemism, endemic to south eastern New South Wales. It has rough, flaky bark, broadly elliptical to egg-shaped leaves with the narrower end towa ...

'' Joy Thomps. - NSW *'' Leptospermum trinervium'' (Sm.) Joy Thomps. - Qld, NSW, Vic *''

Leptospermum turbinatum ''Leptospermum turbinatum'', commonly known as shiny tea-tree, is a species of spreading shrub that is endemic to the Grampians and nearby ranges in Victoria, Australia. It has thin, rough bark, elliptical to lance-shaped leaves with the narrowe ...

'' Joy Thomps. - Vic *''

Leptospermum variabile ''Leptospermum variabile'' is a species of shrub that is endemic to eastern Australia. It has thin, rough or scaly bark, broadly elliptical to lance-shaped leaves with the narrower end towards the base, white flowers arranged singly on the ends o ...

'' Joy Thomps. - Qld, NSW *''

Leptospermum venustum ''Gaudium venustum'' is a species of spreading shrub that is endemic to Queensland. It has thin, rough, scaly bark, broadly elliptical leaves, deep pink flowers borne singly on side shoots and fruit that is fleshy and succulent at first. Descrip ...

'' A.R.Bean - Qld *''

Leptospermum whitei ''Leptospermum whitei'' is a species of shrub that is endemic to eastern Australia. It has fibrous, flaky bark, elliptical leaves, white flowers arranged in small groups on the ends of short side branches, and fruit that falls from the plant when ...

'' Cheel - Qld, NSW *''

Leptospermum wooroonooran ''Leptospermum wooroonooran'', commonly known as wurunuru or mountain teatree, is a species of stunted tree that is endemic to Queensland where it grows on exposed mountain ridges. It has thin, fibrous or flaky bark, lance-shaped leaves with t ...

'' F.M.Bailey - Qld

References

{{Taxonbar, from=Q135621 Myrtaceae genera Taxa named by Georg Forster