Tephrosia robinsoniana Brummitt

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: confident

Flora Zambesiaca Leguminosae subfamily Papillionoideae by R.K. Brummitt

Morphology General Indumentum

Young branches appressed or ascending greyish pubescent.

Morphology Leaves

Leaves with 4–8 pairs of leaflets; petiole and rachis together up to 6.5 cm long, appressed to ascending greyish pubescent; leaflets up to 25 × 15 mm, elliptic to obovate, rather narrowly rounded at the base, broadly rounded to subtruncate at the apex, not or very slightly mucronate, those on the lowermost leaf of each shoot usually densely appressed greyish pubescent and subsericeous on both surfaces, those on the other leaves appressed-pubescent beneath but glabrous abve with the margins tending to curve upwards; stipules 7–8 × 3–4 mm, triangular. Leaves with 4–8 pairs of leaflets; petiole and rachis together up to 6.5 cm long, appressed to ascending greyish pubescent; leaflets up to 25 × 15 mm, elliptic to obovate, rather narrowly rounded at the base, broadly rounded to subtruncate at the apex, not or very slightly mucronate, those on the lowermost leaf of each shoot usually densely appressed greyish pubescent and subsericeous on both surfaces, those on the other leaves appressed-pubescent beneath but glabrous abve with the margins tending to curve upwards; stipules 7–8 × 3–4 mm, triangular.

Morphology Reproductive morphology Flowers

Flowers in short compact racemes exceeded by the leaves; bracts up to 5 × 2 mm, not concealing the pedicels of the developing flowers; pedicels 4–10 mm long, appressed or ascending greyish pubescent. Flowers in short compact racemes exceeded by the leaves; bracts up to 5 × 2 mm, not concealing the pedicels of the developing flowers; pedicels 4–10 mm long, appressed or ascending greyish pubescent.

Morphology Reproductive morphology Flowers Calyx

Calyx c.7 mm long, loosely appressed greyish pubescent, the teeth about equalling the campanulate part (the lower tooth slightly longer), the two upper teeth joined for most of their length to form a broad triangle with only the apices free as two closely adjacent prolongations c.0.7 mm long. Calyx c.7 mm long, loosely appressed greyish pubescent, the teeth about equalling the campanulate part (the lower tooth slightly longer), the two upper teeth joined for most of their length to form a broad triangle with only the apices free as two closely adjacent prolongations c.0.7 mm long.

Morphology Reproductive morphology Flowers Gynoecium Ovary

Ovary appressed-pubescent, style pubescent.

Ecology

Known only from these two collections, on rocky hillsides; 1340–1450 m.

Morphology General Habit

Shrub 0.7–1.5 m high. Shrub 0.7–1.5 m high.

Morphology Branches

Young branches appressed or ascending greyish pubescent.

Morphology Reproductive morphology Flowers Corolla

Petals 16–18 mm long, bright pink; standard almost as broad as long, broadly rounded to emarginate at the apex, broadly cuneate to subtruncate at the base. Petals 16–18 mm long, bright pink; standard almost as broad as long, broadly rounded to emarginate at the apex, broadly cuneate to subtruncate at the base.

Morphology Reproductive morphology Flowers Androecium Stamens

Stamen tube c.10 mm long. Stamen tube c.10 mm long.

Morphology Reproductive morphology Flowers Gynoecium Pistil

Ovary appressed-pubescent, style pubescent.

Morphology Reproductive morphology Fruits

Pods c.35 × 9 mm, broadly oblong, finely and densely pubescent-villous with irregularly arranged whitish appressed hairs. Pods c.35 × 9 mm, broadly oblong, finely and densely pubescent-villous with irregularly arranged whitish appressed hairs.

Morphology Reproductive morphology Seeds

Seeds 3–5, transversely elongate in the pod. Seeds 3–5, transversely elongate in the pod.