What is "strophanthus hispidus"

In'ee \I`n['e]e"\, n. [F.] An arrow poison, made from an apocynaceous plant ( Strophanthus hispidus) of the Gaboon country; -- called also onaye.

Strophanthus \Stro*phan"thus\, n. [NL., from Gr. ? a turning + ? a flower.] (Bot.) A genus of tropical apocynaceous shrubs having singularly twisted flowers. One species ( Strophanthus hispidus) is used medicinally as a cardiac sedative and stimulant.

Strophanthus hispidus, the hispid strophanthus, is a liana or shrub that can grow up to tall. Its flowers feature a yellow corolla and yellow corona lobes spotted with red, purple or brown. The plant has been used as arrow poison. S. hispidus is native to Guinea-Bissau, Guinea, Liberia, Burkina Faso, Ivory Coast, Ghana, Togo, Benin, Cameroon, Central African Republic, Gabon and Democratic Republic of Congo and also naturalized in China.