Crotalaria microthamnus Robyns ex R.Wilczek

First published in Bull. Jard. Bot. État Bruxelles 23: 181 (1953)
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

International Legume Database and Information Service

Conservation
Insufficiently known
Ecology
Africa: Zambezian grassland
Morphology General Habit
Annual, Not climbing, Herb
[ILDIS]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/19893063/20048292

Conservation
LC - least concern
[IUCN]

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

Morphology General Habit
Bushy annual 35–80 cm tall; branches slender, appressed puberulous.
Morphology Leaves
Leaves mostly 3-foliolate, uppermost on main and suppressed lateral branches sometimes 1-foliolate; leaflets 5–10 × 1–3 mm, obcuneiform to oblanceolate, appressed puberulous beneath; petiole 2–6 mm long; stipules 0.
Morphology Reproductive morphology Inflorescences
Racemes short, few-flowered, most of the flowers solitary or clustered in axils all along the branches; bracts 1 mm long, linear to shortly linear-lanceolate.
Morphology Reproductive morphology Flowers Calyx
Calyx 3–4 mm long, appressed puberulous; upper lobes narrowly attenuate-triangular, 2–3 times as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard elliptic to oblong-obovate, yellow, usually lined brown, glabrous to thinly puberulous on the upper part outside; wings nearly as long as the keel; keel 6–7 mm long, angular, with a straight narrow twisted beak.
Morphology Reproductive morphology Fruits
Pod sessile, 3–4 mm across, subglobose, puberulous, 1–2-seeded.
Morphology Reproductive morphology Seeds
Mature seeds not seen.
[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]

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

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • 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