''Amherstia nobilis'' ( ; the Pride of Burma) is a tropical

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only ...

growing to about in height with large, showy

flower Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, m ...

s. It is the only member of the genus ''Amherstia''. It is widely cultivated for ornament in the humid

tropics The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...

, but is

extinct in the wild A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as only consisting of living members kept in captivity or as a naturalized population outside its historic range ...

, only being known from a single wild specimen which was recorded in 1865. It is thus potentially

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 ...

in Burma (

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

), hence the common name, though

Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...

also cites it as native in adjoining

Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...

. The

scientific name In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

commemorates Lady Amherst, (as does

Lady Amherst's pheasant Lady Amherst's pheasant (''Chrysolophus amherstiae'') is a bird of the order Galliformes and the family Phasianidae. The genus name is from Ancient Greek ''khrusolophos'', "with golden crest". The English name and ''amherstiae'' commemorates Sara ...

) and also her daughter Sarah.Wallich, Nathaniel. ''

Plantae Asiaticae Rariores ''Plantae Asiaticae Rariores'' is a horticultural work (alternative title ''Descriptions and figures of a select number of unpublished East Indian plants'') published in 1830–1832 by the Danish botanist Nathaniel Wallich. ''Plantae Asiaticae R ...

'' 1
1
1830 829 Another common name, orchid tree, is also used for members of the genus ''

Bauhinia ''Bauhinia'' () is a large genus of flowering plants in the subfamily Cercidoideae and tribe Bauhinieae, in the large flowering plant family Fabaceae, with a pantropical distribution. The genus was named after the Bauhin brothers Gaspard and ...

''.

Description

The extravagant flowers are seen hanging from the metre-long pendent

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 ...

, or flower stalk, which is a bright

crimson Crimson is a rich, deep red color, inclining to purple. It originally meant the color of the kermes dye produced from a scale insect, '' Kermes vermilio'', but the name is now sometimes also used as a generic term for slightly bluish-red col ...

red at the end. There are 5

petal Petals are modified leaves that form an inner whorl surrounding the reproductive parts of flowers. They are often brightly coloured or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corol ...

s although 2 of these are minute and the rest are of unequal size. These petals are also crimson; the two medium-sized petals are

yellow Yellow is the color between green and orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575585 nm. It is a primary color in subtractive color systems, used in painting or color printing. In t ...

at the tip and the largest petal is broad and fan-shaped with a wavy upper margin and a yellow triangle of colour extending from the lip down into the

. This large petal can reach long and over wide at the end. There are either 9 or 10

stamen The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament ...

s, 9 of which are partially fused into a

pink Pink is a pale tint of red, the color of the Dianthus plumarius, pink flower. It was first used as a color name in the late 17th century. According to surveys in Europe and the United States, pink is the color most often associated with charm, p ...

sheath; the stamens are of two differing lengths with the longer ones having larger

anther The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament ...

s. The

compound leaves A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, fl ...

bear six to eight large leaflets; these are broadly oblong in shape and are pallid underneath. The

fruit In botany, a fruit is the seed-bearing structure in flowering plants (angiosperms) that is formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate their seeds. Edible fruits in particular have long propaga ...

, a

legume Legumes are plants in the pea family Fabaceae (or Leguminosae), or the fruit or seeds of such plants. When used as a dry grain for human consumption, the seeds are also called pulses. Legumes are grown agriculturally, primarily for human consum ...

, is a pod long. The pods are roughly

scimitar A scimitar ( or ) is a single-edged sword with a convex curved blade of about 75 to 90 cm (30 to 36 inches) associated with Middle Eastern, South Asian, or North African cultures. A European term, ''scimitar'' does not refer to one specific swor ...

-shaped, and the woody outer case opens to disperse the seeds.

Gallery

File:AmherstiaNobilis.jpg, Flowers File:P1240147 Amherstia nobilis (fierté de Birmanie).jpg, ''Amherstia nobilis'' File:P1240149 Amherstia nobilis (fierté de Birmanie).jpg, ''Amherstia nobilis'' beginning of the inflorescence File:P1240150 Amherstia nobilis (fierté de Birmanie).jpg, ''Amherstia nobilis'' flowering File:P1240151 Amherstia nobilis (fierté de Birmanie).jpg, ''Amherstia nobilis'' detail of the flower File:Amherstia nobilis with flower, new red leaves, and mature green leaves.jpg, Flower, new red leaves, and mature green leaves File:Amherstia nobilis seedpod.jpg, Seedpod

References

External links

From the ARKive digital database
{{Taxonbar, from2=Q18201508, from1=Q58522 Detarioideae Monotypic Fabaceae genera Trees of Myanmar Ornamental trees