Fabaceae
Eriosema

Eriosema lebrunii Staner & De Craene

First published in Ann. Mus. Congo Belge, Bot., sér. 6, 1: 73 (1934)
This species is accepted
The native range of this species is Nigeria to Tanzania and S. Tropical Africa. It is a perennial or tuberous geophyte and grows primarily in the seasonally dry tropical biome.

Descriptions

Leguminosae, B. Mackinder, R. Pasquet, R. Polhill and B. Verdcourt. Flora Zambesiaca 3:5. 2001

Morphology General Habit
Decumbent perennial herb, with a weak sparsely branched stem up to 15(30) cm long, from a globose or turnip-shaped tuber 2–3 × 1.5 cm.
Morphology Stem
Stems slender with sparse to dense white pubescence and often longer mostly ferruginous spreading hairs on the younger parts.
Morphology Leaves
Leaves 1-foliolate; leaflet (1.5)2.2–10.2 × 0.4–1.8 cm, oblong-lanceolate, acute at the apex, ± rounded to cuneate at the base, pubescent above and on the nerves beneath, glandular beneath; main basal nerves extending over halfway up the blade; petiole c. 1–2 mm long; stipules 4.5–1.7 × 1.5–2 mm, lanceolate, hairy, veined.
Morphology Reproductive morphology Inflorescences
Racemes axillary, the flowering part 1.5–4 × 1.2 cm; peduncle 1–2.5 cm long, with appressed and spreading hairs; pedicels c. 1 mm long; bracts 8 × 0.5 mm linear.
Morphology Reproductive morphology Flowers Calyx
Calyx c. 5–7 mm long with long spreading ferruginous hairs; lobes lanceolate, 2–4 times as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard greenish-yellow outside, yellow inside, the upper half often drying dark, 6–7 × 2–3.5 mm, oblong-cuneiform, pubescent and glandular in the median area.
Morphology Reproductive morphology Fruits
Pods 6–7 × 4–4.5 mm, oblong, covered with long ferruginous hairs c. 2 mm long, minute scaly hairs and scattered glands.
Morphology Reproductive morphology Seeds
Seeds greenish- or pinkish-brown, speckled with dark blackish-purple, 2.5 × 1.5 × 1 mm; rim aril orange-brown.
[FZ]

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

Morphology General Habit
Decumbent perennial herb, with a weak sparsely branched stem up to 15(–30) cm. long, from a globose or turnip-shaped tuber ± 3 cm. long and 1·5 cm. wide.
Morphology Stem
Stems slender with sparse to dense white pubescence and often longer mostly ferruginous spreading hairs on the younger parts.
Morphology Leaves
Leaves 1-foliolate; leaflet oblong-lanceolate, (1·5–)2·2–10·2 cm. long, 0·4–1·8 cm. wide, acute at the apex, ± rounded at the base, pubescent above and on the nerves beneath, glandular beneath; main basal nerves extending over half-way up the blade; petiole ± 1–2 mm. long; stipules lanceolate, 4·5–17 mm. long, 1·5–2 mm. wide, hairy, veined.
Morphology Reproductive morphology Inflorescences
Racemes axillary, the flowering part 1·5–4 cm. long, 1·2 cm. wide; peduncle 1–2·5 cm. long, with adpressed and spreading hairs; pedicels ± 1 mm. long; bracts linear, 8 mm. long, 0·5 mm. wide.
Morphology Reproductive morphology Flowers Calyx
Calyx with long spreading ferruginous hairs, ± 5–7 mm. long; lobes lanceolate, 2–4 times as long as the tube.
Morphology Reproductive morphology Flowers Corolla
Standard greenish-yellow outside, yellow inside, oblong-cuneiform, 6–7 mm. long, 2–3·5 mm. wide, pubescent and glandular in the median area.
Morphology Reproductive morphology Fruits
Pods oblong, 6–7 mm. long, 4–4·5 mm. wide, covered with long ferruginous hairs ± 2 mm. long, minute scaly hairs and scattered glands.
Morphology Reproductive morphology Seeds
Seeds greenish- or pinkish-brown, speckled with dark blackish-purple, longest dimension 2·5 mm., shorter dimension 1·5 mm., 1 mm. thick; rim-aril orange-brown.
Habitat
Secondary grassland; 1620–1800 m.
Distribution
T7 T8
[FTEA]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Lake Victoria regional transition zone; grasslands, Sudanian grasslands, Zambezian grassland
Morphology General Habit
Perennial, Not climbing, Herb
[ILDIS]

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

  • 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