Aeschynomene bracteosa Welw. ex Baker

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 2: 150 (1871)
This species is accepted
The native range of this species is Tanzania to S. Tropical Africa. It grows primarily in the seasonally dry tropical biome.

Descriptions

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

Morphology General Habit
Erect, somewhat spreading or almost prostrate intricately branched sticky subshrub, 0.4–1.5 m. high, or tufted pyrophyte, 7–35 cm. high, with a thick woody rootstock.
Morphology Stem
Stems several–30, glabrous to densely pubescent with sticky tubercular-based short hairs, ± rugose.
Morphology Leaves
Leaves (6–)12–56-foliolate; leaflets oblong or oblong-elliptic, 1–7 mm. long, 0.3–1.5(–3) mm. wide, acute to rounded at the apex, obliquely rounded at the base, glabrous, sometimes denticulate-ciliate; main nerve somewhat or very eccentric; petiole and rhachis together 0.5–3 cm. long, pubescent or glabrous; petiolules 0.3 mm. long; stipules ovate or ovate-lanceolate, 1.5–5(–7.5) mm. long, 0.5–2(–3) mm. wide, not appendaged, sometimes ciliate.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary or terminal, branched, several–many-flowered; rhachis 0.5–10(–14) cm. long, often zigzag; peduncle 0.2–3.5 cm. long; pedicels 2–8(–17) mm. long; bracts 2-lobed to the base, persistent, the lobes ovate to elliptic-lanceolate, 1–3.5(–6) mm. long, 0.5–1.5(–2.5) mm. wide, entire or bifid, pubescent to glabrous; bracteoles lanceolate to ovate-lanceolate, 1.5–3(–6) mm. long, 0.5–1 (–1.3) mm. wide, often ciliate, persistent.
Morphology Reproductive morphology Flowers Calyx
Calyx glabrous, 2-lipped, one elliptic or ovate, 3–5 mm. long, 2–3.5 mm. wide, emarginate or 2-toothed, the other oblong, 4–5(–6.5) mm. long, 2–3.5 mm. wide, 3-toothed, both ciliate above.
Morphology Reproductive morphology Flowers Corolla
Standard yellow or orange, rarely cream, violin-shaped, 5–10 mm. long, 2.5–7 mm. wide, emarginate; wings and keel-petals yellow, the latter not laciniate.
Morphology Reproductive morphology Fruits
Pod of 1 article or sometimes 2, joined by a very narrow neck, each rounded, 4–5(–7) mm. long, 3.5–4.5(–6) mm. wide, compressed or slightly inflated, glabrous, densely and finely rugulose when adult.
Morphology Reproductive morphology Seeds
Seeds pale brown, almost semicircular in outline, compressed, longest dimension 3.4 mm., shorter dimension 2.5 mm., ± 1 mm. thick; hilum small, circular, eccentric.
[FTEA]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Zambezian woodland
Morphology General Habit
Perennial, Not climbing, Herb/Shrub
[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]

Leguminosae, B. Verdcourt. Flora Zambesiaca 3:6. 2000

Morphology General Habit
Erect, somewhat spreading or almost prostrate intricately branched sticky subshrub, 4–15 mm high, or tufted pyrophyte, 7–35 cm high, with a thick woody rootstock.
Morphology Stem
Stems several–30, glabrous to densely pubescent with sticky tubercular-based short hairs, ± rugose.
Morphology Leaves
Leaves (6)12–56-foliolate; leaflets 1–7 × 0.3–1.5(3) mm, oblong or oblong-elliptic, acute to rounded at the apex, obliquely rounded at the base, glabrous, sometimes denticulate-ciliate; main nerve somewhat or very eccentric; petiole and rhachis together 0.5–3 cm long, pubescent or glabrous; petiolules 0.3 mm long; stipules 1.5–5(7.5) × 0.5–2(3) mm, ovate or ovate-lanceolate, not appendaged, sometimes ciliate.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary or terminal, branched, several- to many-flowered; peduncle 0.2–3.5 cm long; rhachis 0.5–10(14) cm long, often zigzag; pedicels 2–8(17) mm long; bracts 2-lobed to the base, persistent, the lobes 1–3.5(6) × 0.5–1.5(2.5) mm, ovate to elliptic-lanceolate, entire or 2-fid, pubescent to glabrous; bracteoles 1.5–3(6) × 0.5–1(1.3) mm, lanceolate to ovate-lanceolate, often ciliate, persistent.
Morphology Reproductive morphology Flowers Calyx
Calyx glabrous, 2-lipped, one 3–5 × 2–3.5 mm, elliptic or ovate, emarginate or 2-toothed, the other 4–5(6.5) × 2–3.5 mm, oblong, 3-toothed, both ciliate above.
Morphology Reproductive morphology Flowers Corolla
Standard yellow or orange, rarely cream-coloured, 5–10 × 2.5–7 mm, violin-shaped, emarginate; wings and keel petals yellow, the latter not laciniate.
Morphology Reproductive morphology Fruits
Fruit of 1 article or sometimes 2, joined by a very narrow neck, each article rounded, 4–5(7) × 3.5–4.5(6) mm, compressed or slightly inflated, glabrous, densely and finely rugulose when adult.
Morphology Reproductive morphology Seeds
Seeds pale brown, compressed, 3.4 × 2.5 × c. 1 mm, almost semicircular in outline; hilum small, circular, eccentric.
Note
A very variable species. Two taxa which I had thought might be species have been retained at varietal rank. A. nambalensis cited below is actually about intermediate between var. bracteosa and var. delicatula.
[FZ]

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