Crotalaria nudiflora Polhill

First published in Crotalaria Africa & Madagascar: 219 (1982)
This species is accepted
The native range of this species is N. 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 widely branching annual, 10–60 cm tall; stem slender, subglabrous to sparsely puberulous above.
Morphology Leaves
Leaves 3-foliolate; leaflets mostly 15–45 × 3–15 mm, variable in shape, linear-lanceolate to lanceolate or oblanceolate to elliptic or obovate-elliptic, sparsely appressed puberulous beneath; petiole shorter (sometimes only slightly) than the leaflets; stipules 1–1.5 mm long, subulate, deciduous.
Morphology Reproductive morphology Inflorescences
Racemes numerous, the main ones 4.5–11 cm long, but also smaller ones on reduced branchlets appearing at first glance axillary from the upper leaves, all long pedunculate with 6–12 flowers widely spaced on the slender rhachis; bracts 1–1.5 mm long, subulate; bracteoles inserted on the pedicel, small.
Morphology Reproductive morphology Flowers Calyx
Calyx c. 4 mm long, glabrous; lobes narrowly acuminate-triangular, shorter to a little longer than the tube.
Morphology Reproductive morphology Flowers Corolla
Standard obovate-circular, yellow, veined brown or purplish; wings exceeding the keel; keel 6–7 mm long, abruptly rounded near the middle, with a narrow attenuate beak incurved at the tip.
Morphology Reproductive morphology Fruits
Pod shortly stipitate, (0.8)1.2–1.5 × 0.35–0.4 cm, narrowly subcylindrical, pointed at either end, puberulous, (6)10–16-seeded.
Morphology Reproductive morphology Seeds
Seeds 1.5–2 mm long, oblique-cordiform, smooth to minutely rugulose, brownish.
[FZ]

International Legume Database and Information Service

Conservation
Insufficiently known
Ecology
Africa: Zambezian grassland, Zambezian woodland
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: threatened. Confidence: confident
[AERP]

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