Crotalaria pseudotenuirama Torre

First published in Mem. Junta Invest. Ultramar, 2 Ser. 19: 36 (1960)
This species is accepted
The native range of this species is Tropical Africa. 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 annual 20–90 cm tall, with generally numerous slender ascending branches; stem appressed pubescent.
Morphology Leaves
Leaves 3-foliolate; leaflets 8–20 × 2–5 mm, linear-oblanceolate to oblong-oblanceolate, mostly rounded to truncate at the apex, appressed pubescent beneath; petiole 2–9 mm long; stipules 0.
Morphology Reproductive morphology Inflorescences
Racemes 3–13 cm long, subdensely to laxly 10–30-flowered; bracts 1–2 mm long, linear to linear-lanceolate; pedicel 2–4 mm long, sometimes with minute bracteoles.
Morphology Reproductive morphology Flowers Calyx
Calyx 2.5–3.5 mm long, brownish tomentose; upper lobes triangular, 1–1.5 times as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard obovate, pale yellow, veined brown, golden-brown tomentose outside; wings ± as long as the keel; keel 4–6 mm long, angular, with a narrow twisted beak slightly incurved at the tip.
Morphology Reproductive morphology Fruits
Pod sessile, 5–6 mm long, ovoid-globose, pubescent, 1–2-seeded.
Morphology Reproductive morphology Seeds
Seeds 2 mm long, ovate-cordiform, smooth, brown to purplish, with a prominent aril.
[FZ]

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

Morphology General Habit
Erect annual, up to 6–9 dm. tall, often with numerous slender ascending branches from the base upwards.
Morphology Stem
Stem slender, subappressed pubescent.
Morphology Leaves
Leaves 3-foliolate; leaflets linear-oblanceolate to oblong-oblanceolate, up to 12–20 mm. long and 2–5 mm. wide, mostly rounded or truncate at the apex, glabrous above, appressed pubescent beneath; petiole up to 4–9 mm. long.
Morphology Leaves Stipules
Stipules absent.
Morphology Reproductive morphology Inflorescences
Racemes usually shortly pedunculate, up to 7–13 cm. long, with mostly numerous fairly closely arranged flowers; bracts linear, up to 2 mm. long, much shorter than the pedicel; bracteoles inconspicuous.
Morphology Reproductive morphology Flowers Calyx
Calyx 2·5–3·5 mm. long, with the tube protracted on the lower side, brownish tomentose; upper lobes triangular, ± as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard obovate, pale yellow, veined brown, golden-brown tomentose outside; wings ± as long as the keel; keel bent at right-angles in the lower third, with a narrow slightly incurved twisted beak, 4–6 mm. long.
Morphology Reproductive morphology Fruits
Pod sessile, subglobose-ovoid, ± 5–6 mm. long, brown appressed pubescent, 1–2-seeded.
Morphology Reproductive morphology Seeds
Seeds ovate-cordiform in outline, up to 2 mm. long, with a prominent aril, smooth, brown, sometimes purplish tinged.
Habitat
Wet places in seasonally inundated or valley grassland, though generally on sandy soils; 1150–2200 m.
Distribution
widespread in tropical Africa, from the Ivory Coast east to Ethiopia and south to Zambia and Angola, but only locally common K3 T1 T4 T5
[FTEA]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Sudanian grasslands, Zambezian grassland, Lake Victoria regional transition zone; 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: not 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

  • 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