Vigna friesiorum Harms

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation

Predicted extinction risk: not threatened. Confidence: confident

International Legume Database and Information Service

Conservation

Not Threatened

Ecology

Africa: Afromontane grassland, Lake Victoria regional transition zone; grasslands, Somalia-Masai grasslands, Somalia-Masai wooded grasslands.

Morphology General Habit

Perennial, Climbing/Not climbing, Herb

Leguminosae, J. B. Gillett, R. M. Polhill & B. Verdcourt. Flora of Tropical East Africa. 1971

Morphology General Habit

Erect or decumbent perennial herb, 7·6–30 cm. tall, from a softly woody carrot-like or fusiform rootstock up to 25 cm. long.

Morphology Stem

Stems with dense to scattered spreading hairs.

Morphology Leaves

Leaflets 3, oblong or elliptic to linear-lanceolate, 0·8–7 cm. long, 0·3–3·2 cm. wide, acute to rounded at the apex, rounded at the base, glabrous to pubescent or pilose on both surfaces, often rather characteristically margined with short hairs, ±3-nerved from the base; venation raised and reticulate on both surfaces; petiole 1·5–8 cm. long; rhachis 2·5–9 mm. long; petiolules 0·5–1·5 mm. long; stipules oblong-lanceolate to lanceolate, 4–7 mm. long, somewhat bilobed at the base, veined.

Morphology Reproductive morphology Inflorescences

Racemes axillary, (1–)2–several-flowered, subumbellate; peduncle 3·5–20 cm. long, somewhat thickened towards the apex; pedicels 1–2 mm. long; bracteoles subpersistent, minute, ± 1·5 mm. long, 1-nerved.

Morphology Reproductive morphology Flowers Calyx

Calyx-tube glabrous or hairy, truncate at the base in fruit, nerved, 2–3·5 mm. long; lobes deltoid, 2–3·5 mm. long, ciliate or minutely ciliolate, sometimes slightly tuberculate, the upper pair joined for two-thirds or more of their length to form a bifid lip.

Morphology Reproductive morphology Flowers Corolla

Standard pale creamy-yellow, green with or without mauve basal stripes or entirely mauve, obovate, 1–1·4 cm. long, 0·8–1·3 cm. wide, emarginate, glabrous; wings green with mauve margins; keel green, elongated, shaped very much like the end of a canoe.

Morphology Reproductive morphology Fruits

Pods ± erect, linear-cylindrical, 4–6 cm. long, 2–3 mm. wide, yellowish pubescent or covered with very minute scale-like hairs, ± 17–20-seeded.

Morphology Reproductive morphology Seeds

Seeds brown, sometimes faintly mottled with black, subcylindrical or rectangular, longest dimension 1·8–2·5 mm., shorter dimensions 1·5–2 mm.; hilum minute, central or eccentric; aril not developed.