Aeschynomene venulosa Verdc.

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: threatened. Confidence: low confidence

Leguminosae, B. Verdcourt. Flora Zambesiaca 3:6. 2000

Morphology General Habit

Subshrub or perennial herb c. 40 cm tall with suberect or decumbent glabrous stems with peeling bark.

Morphology Leaves

Leaves 4-foliolate; leaflets 5–12 × 3–9 mm, obovate, obovate-falcate or almost semicircular, rounded and obliquely mucronulate at the apex, subcordate or in upper leaflets very oblique, glabrous, 5–6-nerved from the base, the venation prominent on both sides; rhachis and petiole together 1–1.8 cm long, rhachis with scattered tubercular-based hairs; petiolules very short; stipules 4–18 × 2.5–12 mm, broadly elliptic or rounded, rounded at the apex, conspicuously appendaged on one side at the base, leaf-like, glabrous, conspicuously nervose, at length deciduous.

Morphology Reproductive morphology Inflorescences

Inflorescences axillary, lax, 1.5–6 cm long, 10–15-flowered; peduncles 5–15 mm long; pedicels 1.7–4.8 mm long; bracts 2–6.5 × 1.8–4 mm, oblong, nervose, glabrous, deeply divided into 2 obtuse lobes, soon deciduous; bracteoles 3–3.5 × 0.7 mm, lanceolate, acuminate.

Morphology Reproductive morphology Flowers Calyx

Calyx glabrous or very sparsely setulose, 2-lipped; lips 3.5–5.5 × 2–3 mm, elliptic or oblong, one obtuse, the other divided into 3 acute lanceolate lobes.

Morphology Reproductive morphology Flowers Corolla

Standard yellow, 6–7.8 × 3–6 mm, violin-shaped; wings and keel yellow, the petals of the latter not laciniate.

Morphology Reproductive morphology Fruits

Fruit of 1–2 articles joined by a narrow neck, ± semicircular, 4.5–5.5 × 4–4.5 mm, compressed, glabrous or with some hairs on the margins, the faces reticulate.

Morphology Reproductive morphology Seeds

Seeds not seen.

International Legume Database and Information Service

Conservation

Not Threatened

Ecology

Africa: Zambezian woodland

Morphology General Habit

Perennial, Not climbing, Herb/Shrub

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

Morphology General Habit

Spreading or suberect subshrub or woody herb ± 40 cm. tall.

Morphology Stem

Stems glabrous or even slightly glaucous when young, the bark soon peeling off in thin longitudinal strips.

Morphology Leaves

Leaves 4-foliolate; leaflets obovate, obovate-falcate or almost semicircular, 0.5–1.2 cm. long, 3–9 mm. wide, rounded and sometimes very obliquely mucronulate at the apex, the lower pair of leaflets slightly subcordate at the base, the upper pair attached to the rhachis very obliquely, glabrous; venation conspicuously raised and reticulate on both surfaces; petiole and rhachis together 1–1.8 cm. long including the terminally produced bristle, with a few bristly hairs on the lower surface; petiolules ± 0.5 mm. long; stipules broadly elliptic or almost round, 0.4–1.8 cm. long, 0.25–1.2 cm. wide, very rounded at the apex, conspicuously obtusely appendaged on one side at the base, glabrous, at length deciduous.

Morphology Reproductive morphology Inflorescences

Inflorescences axillary, 10–15-flowered, fairly lax; rhachis 1.5–6 cm. long; peduncle ± 0.5–1.5 cm. long; pedicels 1.7–4.8 mm. long; bracts oblong, 2–6.5 mm. long, 1.8–4 mm. wide, divided almost half-way or completely into 2 rather obtuse lobes, soon falling, nervose, glabrous; bracteoles lanceolate, 3–3.5 mm. long, 0.7 mm. wide, acuminate, falling in fruit.

Morphology Reproductive morphology Flowers Calyx

Calyx glabrous or with very few bristly hairs, 2-lipped, the lips elliptic or oblong, 3.5–5.5 mm. long, 2–3 mm. wide, one obtuse, the other divided into 3 acute lanceolate teeth.

Morphology Reproductive morphology Flowers Corolla

Standard yellow, violin-shaped, 6–7.8 mm. long, 3–6 mm. wide; wings and keel-petals yellow, the latter not laciniate.

Morphology Reproductive morphology Fruits

Pod of 1 or 2 articles joined by a very narrow neck, kettledrum-shaped, flat, 4.5–5.5 mm. long, 4–4.5 mm. wide, glabrous or with very few hairs on the margins, reticulate.

Morphology Reproductive morphology Seeds

Seeds not seen.