Tephrosia holstii Taub.

First published in H.G.A.Engler, Pflanzenw. Ost-Afrikas, C: 211 (1895)
This species is accepted
The native range of this species is Ethiopia to Tanzania. It grows primarily in the seasonally dry tropical biome.

Descriptions

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

Morphology General Habit
Perennial or annual bushy herb, up to 80 cm. tall; hairs on stem usually spreading and yellowish, ± 0.5 mm. long.
Morphology Leaves
Leaves 1-foliolate; stipules narrowly triangular, up to 6 mm. long; petiole up to 5 mm.; petiolule 1–2 mm. long; leaflet elliptic-oblong to lanceolate, apex rounded or acute, up to 7 cm. long and 2.5 cm. wide, white pilose above and beneath; chief lateral nerves 5–6 on each side, very prominent and rufous pilose beneath.
Morphology Reproductive morphology Flowers
Flowers orange or brick red, in short dense terminal pseudoracemes, usually of but 1–3 nodes, often also in uppermost leaf-axil; bracts narrowly triangular, persistent, ± 7 mm. long; pedicels up to 3 mm. long.
Morphology Reproductive morphology Flowers Calyx
Calyx hirsute with both brown and white hairs; tube ± 2 mm. long; lobes lanceolate-acuminate, with long attenuate tips, lowest ± 6 mm., lateral ± 5 mm., upper, united for ± 1 mm., ± 4.5 mm. long.
Morphology Reproductive morphology Flowers Corolla
Standard tomentose outside, ± 9 mm. long; keel glabrous.
Morphology Reproductive morphology Flowers Androecium Stamens
Upper filament lightly attached, widened, but not callous, 1 mm. above the base; filament-sheath ± 8 mm., free parts 3–4 mm., anthers 0.7 mm. long.
Morphology Reproductive morphology Flowers Gynoecium Style
Style glabrous, curved into a semicircle, penicillate, ± 6 mm. long.
Morphology Reproductive morphology Fruits
Pod somewhat upcurved, apical angle 60°–70°, up to 5 cm. long, ± 5 mm. wide, brown hirsute, 10–11-seeded.
Morphology Reproductive morphology Seeds
Seeds oval, transverse; hilum near the narrower end; aril well developed.
Habitat
Upland grassland and forest margins; 1200–2450 m.; rainfall 900–1400 mm.
Distribution
K3 K4 K5 K6 T2 T3 T5 T6
[FTEA]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Afromontane grassland, Afromontane(upland) bushland and thicket.
Morphology General Habit
Annual, Not climbing, Herb
[ILDIS]

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
[AERP]

Uses

Use
Toxins
[ILDIS]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • International Legume Database and Information Service

    • International Legume Database and Information Service (ILDIS) V10.39 Nov 2011
    • http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • World Checklist of Vascular plants (WCVP)

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0