Crotalaria concinna Polhill

First published in Kew Bull. 22: 327 (1968)
This species is accepted
The native range of this species is SE. Tanzania. 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 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]

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

Morphology General Habit
Erect annual, up to 6 dm. tall, simple or with few ascending branches mostly from near the base.
Morphology Stem
Stem slender, subappressed pubescent or shortly pilose.
Morphology Leaves
Leaves 3-foliolate; leaflets oblong-oblanceolate, up to 12–19 mm. long and 3–5 mm. wide, mostly rounded at the apex, subglabrous above, thinly appressed pilose beneath; petiole ± 2–4 mm. long.
Morphology Leaves Stipules
Stipules absent.
Morphology Reproductive morphology Inflorescences
Racemes sessile, dense, up to 7–15 cm. long, many-flowered, with other flowers clustered in the axils below; bracts linear, mostly longer than the rather short pedicels, up to 4 mm. long; bracteoles inserted on the pedicel, very small.
Morphology Reproductive morphology Flowers Calyx
Calyx 4–5 mm. long, with the tube protracted on the lower side, densely covered with subappressed silvery hairs; upper lobes acuminately triangular, slightly curved, longer than the tube.
Morphology Reproductive morphology Flowers Corolla
Standard elliptic-obovate, pale yellow, the outer surface veined and flushed reddish, silvery tomentose; wings a little shorter than the keel; keel bent at right-angles in the lower third, with a narrow practically straight twisted beak, 4·5–5·5 mm. long.
Morphology Reproductive morphology Fruits
Pod sessile, subglobose-ovoid, 5–7 mm. long, 4–4·5 mm. across, appressed pubescent, ± 3–5-seeded.
Morphology Reproductive morphology Seeds
Seeds suborbicular-cordiform, up to 2 mm. long, without a conspicuous aril, smooth, brown.
Habitat
Brachystegia woodland, on gravelly and sandy soils; 850–1050 m.
Distribution
not known elsewhere T8
[FTEA]

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