''Calamus muelleri'', commonly known as southern lawyer cane or wait-a-while, is a climbing

palm Palm most commonly refers to: * Palm of the hand, the central region of the front of the hand * Palm plants, of family Arecaceae ** List of Arecaceae genera **Palm oil * Several other plants known as "palm" Palm or Palms may also refer to: Music ...

with a

vine A vine is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas, or runners. The word ''vine'' can also refer to such stems or runners themselves, for instance, when used in wicker work.Jackson; Benjamin; Da ...

-like

habit A habit (or wont, as a humorous and formal term) is a routine of behavior that is repeated regularly and tends to occur subconsciously. A 1903 paper in the '' American Journal of Psychology'' defined a "habit, from the standpoint of psychology, ...

endemic Endemism is the state of a species being found only 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 foun ...

to the

subtropical The subtropical zones or subtropics are geographical zone, geographical and Köppen climate classification, climate zones immediately to the Northern Hemisphere, north and Southern Hemisphere, south of the tropics. Geographically part of the Ge ...

coastal

rainforest Rainforests are forests characterized by a closed and continuous tree Canopy (biology), canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropi ...

s of northern

New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...

and southern

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

. Sharp hooks on the plant can snag the clothing of walkers in these forests, giving rise to the name "wait-a-while".

Description

''C. muelleri'' is a clustering, climbing palm growing up to in length, with thin stems up to diameter. The

pinnate Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis. Pinnation occurs in biological morphology, in crystals, such as some forms of ice or metal crystals, and ...

fronds are

alternate Alternative or alternate may refer to: Arts, entertainment and media * Alternative (''Kamen Rider''), a character in the Japanese TV series ''Kamen Rider Ryuki'' * Alternative comics, or independent comics are an alternative to mainstream superh ...

and more or less

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

. They are up to long with 7-13 leaflets on each side and have long recurved spines on the

rachis In biology, a rachis (from the [], "backbone, spine") is a main axis or "shaft". In zoology and microbiology In vertebrates, ''rachis'' can refer to the series of articulated vertebrae, which encase the spinal cord. In this case the ''rachi ...

. The leaflets have spines along the midrib on the upper surface and small sharp spurs on their margins. The leaf sheath is densely covered in spines. This species, like others in the genus, produces a modified sterile

inflorescence In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, stem that is composed of a main branch or a system of branches. An inflorescence is categorized on the basis of the arrangement of flowers on a mai ...

(known as a flagellum) up to long, which is armed with dozens of strong, recurved barbs that act like

grappling hook A grappling hook or grapnel is a device that typically has multiple hooks (known as ''claws'' or ''flukes'') attached to a rope or cable; it is thrown, dropped, sunk, projected, or fastened directly by hand to where at least one hook may cat ...

s to latch on to nearby vegetation and provide support for the plant. Fertile inflorescences are up to long and flowering occurs in all months of the year. The fruits are a

globose This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary ...

drupe In botany, a drupe (or stone fruit) is a type of fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pip'' (UK), ''pit'' (US), ''stone'', or ''pyrena'') of hardened endocarp with a seed ...

about in diameter, containing a single seed.

Taxonomy

The southern lawyer cane was first described by the

German German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...

botanist Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...

and noted authority on Arecaceae

Hermann Wendland Hermann Wendland (October 11, 1825 in Herrenhausen – January 12, 1903 in Hanover) was a German botanist and gardener. He was a noted authority on the family Arecaceae The Arecaceae () is a family (biology), family of perennial plant, peren ...

, based on specimens collected by

Hermann Beckler Dr. Hermann Beckler (28 September 1828, in Höchstädt an der Donau – 10 December 1914, in Fischen im Allgäu) was a German doctor with an interest in botany. He went to Australia to collect specimens for Ferdinand von Mueller and served as ...

and others on the

Brisbane River The Brisbane River (Turrbal language, Turrbal: ) is the longest river in South East Queensland, Australia. It flows through the city of Brisbane, before emptying into Moreton Bay on the Coral Sea. John Oxley, the first European to explore the ...

and

Moreton Bay Moreton Bay is a bay located on the eastern coast of Australia from central Brisbane, Queensland. It is one of Queensland's most important coastal resources. The waters of Moreton Bay are a popular destination for recreational anglers and are ...

in Queensland and on the Clarence and

Richmond River The Richmond River is a river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may ...

s in New South Wales. Wendland's work was published in the journal ''Linnaea; Ein Journal für die Botanik in ihrem ganzen Umfange'' in 1875.

Distribution and habitat

''Calamus muelleri'' grows in

s and wet sclerophyll forests in subtropical eastern Australia, from around

Gympie Gympie ( ) is a city and a Suburbs and localities (Australia), locality in the Gympie Region, Queensland, Australia. Located in the Greater Sunshine Coast, Gympie is about north of the state capital, Brisbane. The city lies on the Mary River ( ...

in Queensland south to the Bellinger and

Hastings River Hastings River (Birpai language, Birpai: ''Doongang''), an open and Breakwater (structure), trained intermediate wind wave, wave dominated estuary#Lagoon-type or bar-built, barrier estuary, is located in the Northern Tablelands and Mid North Coas ...

s in New South Wales.

Ecology

'' Laetesia raveni'', a species of spider endemic to eastern Australia, builds its web only in two plant species, ''Calamus muelleri'' and ''Solanum inaequilaterum'', both of which are spiny plants.

Conservation

This species is listed by the Queensland Department of Environment and Science as

least concern A least-concern species is a species that has been evaluated and categorized by the International Union for Conservation of Nature (IUCN) as not being a focus of wildlife conservation because the specific species is still plentiful in the wil ...

. , it has not been assessed by the

IUCN The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status ...

Uses

Aboriginal Australians Aboriginal Australians are the various indigenous peoples of the Mainland Australia, Australian mainland and many of its islands, excluding the ethnically distinct people of the Torres Strait Islands. Humans first migrated to Australia (co ...

used the cane stems for weaving.

Gallery

Image:Calamus-muelleri-01.jpg, Young plant Image:Calamus-muelleri-02.jpg, Spines Image:Calamus-muelleri-03.jpg, Stem Image:Calamus-muelleri-05.jpg, Leaf rachis Image:Calamus-muelleri-04.jpg, Stem

References

External links

* *
View a map
of recorded sightings of ''Calamus muelleri'' at the

Australasian Virtual Herbarium The ''Australasian Virtual Herbarium'' (AVH) is an online resource that allows access to plant specimen data held by various Australian and New Zealand herbaria. It is part of the Atlas of Living Australia (ALA), and was formed by the amalgama ...

See images
of ''Calamus muelleri'' on Flickriver {{Taxonbar, from=Q5018500 muelleri Plants described in 1875 Flora of New South Wales Flora of Queensland Taxa named by Hermann Wendland