Crotalaria exilipes Polhill

First published in Kew Bull. 22: 315 (1968)
This species is accepted
The native range of this species is NW. Tanzania. It is an annual and grows primarily in the desert or dry shrubland biome.

Descriptions

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

Morphology General Habit
Much-branched procumbent annual, with radiating branches up to 4 dm. long.
Morphology Branches
Branches very slender, sparsely appressed puberulous, rapidlyglabrescent.
Morphology Leaves
Leaves 3-foliolate; leaflets linear-oblanceolate, up to 15–27 mm. long, 1–3 mm. wide, glabrous above, subglabrous to sparsely appressed puberulous beneath; petiole ± 3–8 mm. long.
Morphology Leaves Stipules
Stipules linear, ± 0·5–1 mm. long.
Morphology Reproductive morphology Inflorescences
Racemes very lax, up to 5–9 cm. long, with ± 6–12 flowers on the filiform slightly zigzag rhachis; bracts very shortly linear-lanceolate, ± 1 mm. long; bracteoles inserted on the pedicel, very small.
Morphology Reproductive morphology Flowers Calyx
Calyx 3–4 mm. long, with the tube protracted on the lower side, glabrous or with a few minute scattered hairs; upper lobes narrowly triangular, nearly twice as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard obovate-orbicular, yellow, glabrous or almost so outside; wings nearly as long as the keel; keel bent at right-angles in the lower half, with a narrow twisted beak, 5–7 mm. long.
Morphology Reproductive morphology Fruits
Pod shortly stipitate, shortly oblong-clavate, ± 12–18 mm. long, 4·5–7 mm. across, minutely puberulous, ± 12–16-seeded.
Morphology Reproductive morphology Seeds
Seeds oblique-cordiform, up to 1·5–2 mm. long, rugulose, brown.
Habitat
Deciduous bushland and grassland, sometimes on rocky outcrops; 1100–1200 m.
Distribution
not known elsewhere T1
[FTEA]

International Legume Database and Information Service

Conservation
Insufficiently known
Ecology
Africa: Lake Victoria regional transition zone; grasslands, Somalia-Masai grasslands
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]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/19891852/20046325

Conservation
VU - vulnerable
[IUCN]

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/

  • 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