Crotalaria

Crotalaria subtilis Polhill

First published in Crotalaria Africa & Madagascar: 333 (1982)
This species is accepted
The native range of this species is SE. DR Congo to NE. Zambia. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

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
[AERP]

Leguminosae, various authors. Flora Zambesiaca 3:7. 2003

Morphology General Habit
Erect annual 10–40 cm tall; stem slender, sometimes with ascending branches, densely pilose.
Morphology Leaves
Leaves 3-foliolate; leaflets 5–15 × 1–4 mm, linear-oblanceolate to oblong-oblanceolate, mostly obtuse, thinly pilose on both surfaces; petiole 1–5 mm long; stipules 0.
Morphology Reproductive morphology Inflorescences
Racemes 3–10 cm long, laxly 8–30-flowered; bracts leaf-like, 5–9 mm long, lanceolate, acuminate, narrowed to a slight stalk, mostly exceeding the flowers and fruits; bracteoles 0.
Morphology Reproductive morphology Flowers Calyx
Calyx 3.5–4.5 mm long, pilose; lobes narrowly triangular-lanceolate, 2.5–3 times as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard elliptic to subcircular, yellow lined reddish-brown, uniformly subdensely pilose outside; wings exceeding the keel; keel 5–6 mm long, angular, with a narrow twisted beak slightly incurved at the tip.
Morphology Reproductive morphology Fruits
Pod sessile, 4 mm long, globose-ellipsoid, 2-seeded (ovules 4–6).
Morphology Reproductive morphology Seeds
Seeds 1.5 mm long, ± cordiform, smooth.
[FZ]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Zambezian woodland
Morphology General Habit
Annual, Not climbing, Herb
[ILDIS]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Flora Zambesiaca

    • Flora Zambesiaca
    • 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