Crotalaria simoma Polhill

First published in Crotalaria Africa & Madagascar: 240 (1982)
This species is accepted
The native range of this species is NE. Zambia. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

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

Morphology General Habit
Erect laxly branched graceful annual 25–45 cm tall; stem slender, inconspicuously appressed puberulous, glabrescent.
Morphology Leaves
Leaves subsessile, simple; blades 30–60 × 1–2 mm, linear, the upper ones mostly with inrolled margins, sparsely puberulous beneath, glabrescent; stipules 1–2 mm long, setaceous.
Morphology Reproductive morphology Inflorescences
Racemes numerous, terminal, with 1–3 laxly inserted flowers above a long very slender peduncle; bracts 1–2 mm long, setaceous; bracteoles at top of the pedicel, similar.
Morphology Reproductive morphology Flowers Calyx
Calyx 5–6 mm long, appressed puberulous; lobes subulate, twice as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard elliptic, yellow, lined brown and pubescent outside; wings brighter yellow, much shorter than the keel; keel 11–14 mm long, angled in the lower third, with a long narrow beak incurved slightly towards the darker lined tip.
Morphology Reproductive morphology Fruits
Pod stipitate, 10–14 × 3–4 mm, narrowly subcylindrical, only slightly broadened apically, appressed pubescent, c. 40-seeded; stipe c. 3 mm long.
Morphology Reproductive morphology Seeds
Seeds 1.2–1.5 mm long, cordiform, slightly rugulose, brown.
[FZ]

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]

International Legume Database and Information Service

Conservation
Insufficiently known
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

  • 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