Crotalaria ovata Polhill

First published in Kew Bull. 22: 279 (1968)
This species is accepted
The native range of this species is SW. Tanzania. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/179538/1581993

Conservation
DD - data deficient
[IUCN]

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

Morphology General Habit
Small annual, with prostrate radiating branches up to 15 cm. long.
Morphology Branches
Branches hirsute with mostly spreading hairs.
Morphology Leaves
Leaves simple; blade ovate, 12–25 mm. long, 7–14 mm. wide, rather pointed, pilose on both surfaces; petiole 1–2 mm. long.
Morphology Leaves Stipules
Stipules filiform, 2–3 mm. long.
Morphology Reproductive morphology Inflorescences
Racemes with 1–4 flowers at the top of a relatively well-developed peduncle, 1–2 cm. long; bracts filiform, up to 3 mm. long; bracteoles inserted at the base of the calyx, similar to the bract.
Morphology Reproductive morphology Flowers Calyx
Calyx becoming basally truncate and deflexed against the pedicel, 3·5–4 mm. long, thinly pilose; lobes acuminately triangular, ±as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard suborbicular, cream, strongly veined with purple and glabrous outside; wings longer than the keel; keel rounded, with a short blunt untwisted beak, 4–5 mm. long.
Morphology Reproductive morphology Fruits
Pod sessile, ellipsoid, 8–10 mm. long, 4–5 mm. across, pilose, thin-walled, 8–10-seeded.
Morphology Reproductive morphology Seeds
Seeds oblique-cordiform, 1·8–2 mm. long, slightly wrinkled, dull brown.
Habitat
Upland grassland as a pioneer on old cultivated land and quarries; 1850–1900 m.
Distribution
T7 known only from the Matanana Plateau
[FTEA]

International Legume Database and Information Service

Conservation
Insufficiently known
Ecology
Africa: Afromontane (upland) anthropic landscapes, Afromontane grassland
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 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