Crotalaria karagwensis Taub.

First published in H.G.A.Engler (ed.), Pflanzenw. Ost-Afrikas, C: 204 (1895)
This species is accepted
The native range of this species is Cameroon to Ethiopia and Tanzania. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Afromontane grassland, Afromontane (upland) anthropic landscapes
Morphology General Habit
Annual, Not climbing, Herb
[ILDIS]

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

Morphology General Habit
Erect annual, often with spreading weakly ascending branches from the base, up to 10·5 dm. tall, but often much smaller.
Morphology Stem
Stem obscurely ribbed, appressed puberulous, with small stiff white hairs often brown at the base.
Morphology Leaves
Leaves simple; blade linear-lanceolate to oblong-elliptic or elliptic, up to 38–115 mm. long, 4–12 mm. wide, acute to rounded at the apex, glabrous above, appressed puberulous beneath; petiole 1–2 mm. long.
Morphology Leaves Stipules
Stipules linear-subulate, up to 2–5 mm. long.
Morphology Reproductive morphology Inflorescences
Racemes lax, up to 9–24 cm. long, ± (6–)10–24-flowered; bracts linear, ± 2–3·5 mm. long; bracteoles adnate to the calyx, linear, up to 2·5 mm. long.
Morphology Reproductive morphology Flowers Calyx
Calyx (4·5–)6–8 mm. long, with the tube protracted on the lower side, rather closely appressed puberulous with hairs like those of the stem; upper lobes narrowly attenuate-triangular, considerably longer than the tube.
Morphology Reproductive morphology Flowers Corolla
Standard elliptic, bright yellow, reddish-purple veined, puberulous apically outside; wings shorter than the keel; keel bent at right-angles in the lower half, with a long straight twisted beak, (7–)8–11 mm. long.
Morphology Reproductive morphology Fruits
Pod oblong-clavate, narrowed basally into a 2–3 mm. long stipe, up to 27–35 mm. long, 6 mm. across, appressed puberulous, ± 26–34-seeded.
Morphology Reproductive morphology Seeds
Seeds oblique-cordiform, 1·5–2 mm. long, smooth.
Habitat
Upland grassland, persisting on roadsides and cultivated ground; 1850–2300 m., but as a weed down to 1100 m.
Distribution
K3 K5 T1 U1 U2 U3
[FTEA]

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

  • 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