''Ypsilandra'' is a genus of at least six herbaceous plant species, first described as a genus in 1888. This genus is a member of the

Melanthiaceae Melanthiaceae, also called the bunchflower family, is a family of flowering herbaceous perennial plants native to the Northern Hemisphere. Along with many other lilioid monocots, early authors considered members of this family to belong to the ...

and is native to East Asia (China, the Himalayas, Myanmar, Thailand). ''Ypsilandra'' species are perennial plants that grow from thick

rhizome In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...

s. They are associated with sloping, forested habitats. They are very infrequently cultivated in the West. Their leaves are generally long and thin, growing in a rosette from the base of the plant. ''Ypsilandra'' species produce flowers on a long scape arising from the intersection of the leaves and the stem. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

s consist of a cluster of nodding, radially-symmetrical tube-shaped flowers with six

tepals A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very ...

. The

stamens 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 filame ...

protrude beyond the tepals. Depending on the species, the tepals may be white, pink, purple, or yellow. ; Species * ''

Ypsilandra alpina ''Ypsilandra'' is a genus of at least six herbaceous plant species, first described as a genus in 1888. This genus is a member of the Melanthiaceae and is native to East Asia (China, the Himalayas, Myanmar, Thailand). ''Ypsilandra'' species are ...

'' F.T.Wang & Tang -

Tibet Tibet (; ''Böd''; ) is a region in East Asia, covering much of the Tibetan Plateau and spanning about . It is the traditional homeland of the Tibetan people. Also resident on the plateau are some other ethnic groups such as Monpa people, ...

Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...

, N

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

* ''

Ypsilandra cavaleriei ''Ypsilandra'' is a genus of at least six herbaceous plant species, first described as a genus in 1888. This genus is a member of the Melanthiaceae and is native to East Asia (China, the Himalayas, Myanmar, Thailand). ''Ypsilandra'' species are ...

'' H.Lév. & Vaniot -

Guangdong Guangdong (, ), alternatively romanized as Canton or Kwangtung, is a coastal province in South China on the north shore of the South China Sea. The capital of the province is Guangzhou. With a population of 126.01 million (as of 2020) ...

Guangxi Guangxi (; ; Chinese postal romanization, alternately romanized as Kwanghsi; ; za, Gvangjsih, italics=yes), officially the Guangxi Zhuang Autonomous Region (GZAR), is an Autonomous regions of China, autonomous region of the People's Republic ...

Guizhou Guizhou (; formerly Kweichow) is a landlocked province in the southwest region of the People's Republic of China. Its capital and largest city is Guiyang, in the center of the province. Guizhou borders the autonomous region of Guangxi to t ...

Hunan Hunan (, ; ) is a landlocked province of the People's Republic of China, part of the South Central China region. Located in the middle reaches of the Yangtze watershed, it borders the province-level divisions of Hubei to the north, Jiangxi to ...

* '' Ypsilandra jinpingensis'' W.H.Chen, Y.M.Shui & ZhiY.Yu -

, N

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

* ''

Ypsilandra kansuensis ''Ypsilandra'' is a genus of at least six herbaceous plant species, first described as a genus in 1888. This genus is a member of the Melanthiaceae and is native to East Asia (China, the Himalayas, Myanmar, Thailand). ''Ypsilandra'' species are ...

'' R.N.Zhao & Z.X.Peng -

Gansu Gansu (, ; alternately romanized as Kansu) is a province in Northwest China. Its capital and largest city is Lanzhou, in the southeast part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibet ...

* ''

Ypsilandra thibetica ''Ypsilandra'' is a genus of at least six herbaceous plant species, first described as a genus in 1888. This genus is a member of the Melanthiaceae and is native to East Asia (China, the Himalayas, Myanmar, Thailand). ''Ypsilandra'' species are ...

'' Franch. -

Sichuan Sichuan (; zh, c=, labels=no, ; zh, p=Sìchuān; alternatively romanized as Szechuan or Szechwan; formerly also referred to as "West China" or "Western China" by Protestant missions) is a province in Southwest China occupying most of the ...

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

* '' Ypsilandra yunnanensis'' W.W.Sm. & Jeffrey -

Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is mai ...

Bhutan Bhutan (; dz, འབྲུག་ཡུལ་, Druk Yul ), officially the Kingdom of Bhutan,), is a landlocked country in South Asia. It is situated in the Eastern Himalayas, between China in the north and India in the south. A mountainous ...

Assam Assam (; ) is a state in northeastern India, south of the eastern Himalayas along the Brahmaputra and Barak River valleys. Assam covers an area of . The state is bordered by Bhutan and Arunachal Pradesh to the north; Nagaland and Manipur ...

''Ypsilandra thibetica'' is used in

traditional Chinese medicine Traditional Chinese medicine (TCM) is an alternative medical practice drawn from traditional medicine in China. It has been described as "fraught with pseudoscience", with the majority of its treatments having no logical mechanism of action ...

, especially in

and

provinces, as a

haemostatic An antihemorrhagic (antihæmorrhagic) agent is a substance that promotes hemostasis (stops bleeding). It may also be known as a hemostatic (also spelled haemostatic) agent. Antihemorrhagic agents used in medicine have various mechanisms of action: ...

Gallery

File:Ypsilandra thibetica (Melanthiaceae) plant.jpg, ''Ypsilandra thibetica'' cultivated plant of a white-flowered form growing in Cambridge Botanic Gardens, Cambridgeshire, United Kingdom. File:Ypsilandra thibetica Franch. flowers and leaves.jpg, ''Ypsilandra thibetica'' frontal close-up of inflorescence of a pink-flowered form, showing interiors of flowers with gynoecium and androecium. Cultivated plant, RHS Rosemoor garden, Devon, U.K.

References

External links

Flora of China treatment: ''Ypsilandra''
Melanthiaceae Flora of East Himalaya Flora of Indo-China Flora of China Melanthiaceae genera {{Liliales-stub