''Hugonia planchonii'' is a

liana A liana is a long- stemmed, woody vine that is rooted in the soil at ground level and uses trees, as well as other means of vertical support, to climb up to the canopy in search of direct sunlight. The word ''liana'' does not refer to a ta ...

with bright yellow flowers that are short-lived and stems producing alternate hooks that is endemic to countries in Tropical West Africa but also occurs in

Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...

and

Gabon Gabon (; ; snq, Ngabu), officially the Gabonese Republic (french: République gabonaise), is a country on the west coast of Central Africa. Located on the equator, it is bordered by Equatorial Guinea to the northwest, Cameroon to the north ...

. It is within the

Linaceae Linaceae is a family of flowering plants. The family is cosmopolitan, and includes about 250 species in 14 genera, classified into two subfamilies: the Linoideae and Hugonioideae (often recognized as a distinct family, the Hugoniaceae). Leaves of ...

family. In

traditional medicine Traditional medicine (also known as indigenous medicine or folk medicine) comprises medical aspects of traditional knowledge that developed over generations within the folk beliefs of various societies, including indigenous peoples, before the ...

, leaves are obtained to make a regimen to treat bronchitis or cough

Description

The species is a liana with brown stem that is hairy when young but glabrescent or with short hairs when matured, the stems have recurved hooks. Leaves are stalked and shiny; stipules are pubescent and 5–10 mm long, petiole is 3–6 mm long; leaf-blade lanceolate to obovate, the species has inconspicuous

domatia A domatium (plural: domatia, from the Latin "domus", meaning home) is a tiny chamber that houses arthropods, produced by a plant. Ideally domatia differ from galls in that they are produced by the plant rather than being induced by their inhabi ...

or sometimes are without the one, the leaf-blade is 5–16 cm long and 2–5 cm wide, surface is slightly

coriaceous 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 o ...

while the upper surface is glabrous, around the midrib to lower surface, it is glabrescent to pubescent. Flowers are yellow and in axillary cymes; sepals are semi-erect, reddish and densely pubescent.

References

{{Taxonbar, from=Q15393641 Flora of West Tropical Africa Flora of Cameroon planchonii