Crotalaria uguenensis Taub.

First published in H.G.A.Engler (ed.), Pflanzenw. Ost-Afrikas, C: 206 (1895)
This species is accepted
The native range of this species is Ethiopia to Tanzania. It is an annual or subshrub and 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
Decumbent or spreading annual or short-lived perennial, up to 7 dm. tall, sometimes with underground runners.
Morphology Stem
Stems laxly branched, subappressed pubescent to spreading pilose.
Morphology Leaves
Leaves 3-foliolate; leaflets not varying much in shape up the stem, linear-lanceolate or more usually oblong-lanceolate to elliptic-oblong or elliptic, up to 20–50 mm. long and 6–28 mm. wide, glabrous or rarely pilose above, rather thinly appressed pilose beneath; petiole up to 16–42 mm. long.
Morphology Leaves Stipules
Stipules subulate or linear-caudate, ± 3–9(–16) mm. long.
Morphology Reproductive morphology Inflorescences
Racemes long and slenderly pedunculate, up to 9–16(–34) cm. long, with numerous fairly closely arranged flowers; bracts subulate-caudate, expanded at the base, 1–2(–3) mm. long; bracteoles inserted at the base of the calyx, subulate, up to 1–2 mm. long.
Morphology Reproductive morphology Flowers Calyx
Calyx 4–5 mm. long, appressed pubescent, often thinly so and rarely subglabrous; lobes acuminately triangular, longer than the tube.
Morphology Reproductive morphology Flowers Corolla
Standard obovate-elliptic to suborbicular, yellow veined reddish-purple, glabrous outside; wings ± as long as the keel or shorter; keel rounded about the middle, with a generally short incurved subacute untwisted beak, 6–8 mm. long, strongly veined purple.
Morphology Reproductive morphology Fruits
Pod practically sessile, subcylindrical, a little broadened towards the apex, 12–18 mm. long, 4–6 mm. across, rather densely pubescent with short subappressed or spreading hairs, ± 24–30-seeded.
Morphology Reproductive morphology Seeds
Seeds oblique-cordiform, ±1·5 mm. long, rugulose, reddish-brown.
Habitat
Deciduous bushland and grassland, often in rocky places, seasonal stream-beds or on clay soils, also persisting on roadsides and cultivated ground; 600–1800 m.
Distribution
K1 K4 K6 K7 T1 T2 T3 U1 U3
[FTEA]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Somalia-Masai bushland and thicket, Somalia-Masai grasslands
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]

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

  • 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