Guy Roberty

Chrysopogon zizanioides, commonly known as vetiver and khus, is a perennial bunchgrass of the family Poaceae. Vetiver is most closely related to sorghum while sharing many morphological characteristics with other fragrant grasses, such as lemongrass (Cymbopogon citratus), citronella (Cymbopogon nardus, C. winterianus), and palmarosa (Cymbopogon martinii).

Poranopsis is a genus of flowering plants belonging to the family Convolvulaceae. Its native range is Indian subcontinent to Southern Central China and Indo-China. Species: Poranopsis discifera (C.K.Schneid.) Staples Poranopsis paniculata (Roxb.) Roberty Poranopsis sinensis (Hand.-Mazz.) Staples

Philenoptera cyanescens is a species of shrub from family Fabaceae. It is commonly known as elu in Yoruba, anunu by Igbo people as talaki in Hausa, sauru in Tiv and as ebelu by the Edo people It is a traditional source of indigo in West Africa to dye fabric.

Lagenaria breviflora is a species of flowering plant. It is a climbing vine that is found across Central Africa, East Africa, and West Africa.

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Rhodognaphalon is a genus of flowering plant in the family Malvaceae native to western, central, and eastern tropical Africa.

Rhodognaphalon brevicuspe is a species of flowering plant in the family Malvaceae. It is found in Cameroon, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Gabon, Ghana, Nigeria, and Sierra Leone. It is threatened by habitat loss.

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Philenoptera laxiflora, synonym Lonchocarpus laxiflorus, is a species of legume in the family Fabaceae. The tree grows to 4–8 meters in height, has grey or yellowish bark and compound leaves. New leaves are accompanied by purple flowers on multi-branched panicles. The fruit is a glabrous papery pod, usually containing one seed. Ph. laxiflorus is widely distributed in West Africa, Central Africa, the African Great Lakes, and Northeast Africa. It is found in savanna woodlands and dry forested areas, particularly fringing forest near water courses.

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