Fabaceae
Droogmansia

Droogmansia pteropus (Baker) De Wild.

First published in Ann. Mus. Congo Belge, Bot., sér. 4, 1: 54 (1902)
This species is accepted
The native range of this species is Tanzania to S. Tropical Africa. It is a subshrub or shrub and grows primarily in the seasonally dry tropical biome.

Descriptions

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

Morphology General Habit
Perennial herb, shrub, or small subshrub (0.1)0.6–2.5(3) m tall, with several shoots from a woody rootstock, very rarely a small tree to 3(?4.5) m.
Morphology Stem
Stems glaucous and glabrous to appressed pubescent or velvety.
Morphology Leaves Leaflets
Leaflets 2–9 × 0.9–3.5(4.5) cm, elliptic, oblong-elliptic or oblong-lanceolate, acute and mucronate or rounded at the apex, cuneate, rounded or slightly cordate at the base, slightly to fairly densely pubescent beneath, sometimes glaucous; petiole winged, 0.8–6 × 0.4–3.5 cm, oblong, obovate, oblanceolate, obcordate or almost round, rounded or narrowly to widely emarginate at the apex, obtuse to slightly cordate at the base; stipules 4–10 × 0.6–1.5 mm, linear to lanceolate.
Morphology Reproductive morphology Inflorescences
Inflorescences usually elongate and narrow, falsely racemose, the flowers arranged in fascicles along the rhachis, 15–50 cm long, or flowers all in axillary fascicles; peduncle 0–11 cm long; pedicels 2–22 mm long; bracts 1.5–4 × 0.7–1.5 mm, ovate to lanceolate, soon falling.
Morphology Reproductive morphology Flowers Calyx
Calyx pubescent or hairy; tube 2.5–6 mm long; lobes 3–8.5 mm long, the upper pair joined for most of their length.
Morphology Reproductive morphology Flowers Corolla
Standard all white or yellow or yellow outside and mauve inside, the veins and outer flush dark purple or crimson, (10)15–23 × (10)12–20 mm, obovate, glabrous to finely or densely puberulous outside; wings and keel bluish-purple or keel yellow-green tipped purple; rarely flowers all white.
Morphology Reproductive morphology Fruits
Fruit densely yellowish-brown hairy, stipitate, the stipe rapidly enlarging and attaining 3–7 cm; articles 1–5, strongly compressed, 5.5–9(13) × 5–6(7) mm, broadly elliptic or almost round.
Morphology Reproductive morphology Seeds
Seeds dark crimson-brown, 4 × 3 × 1 mm, compressed-reniform; hilum minute, almost round, the seed somewhat beaked on one side of it.
[FZ]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/19891808/20069350

Conservation
LC - least concern
[IUCN]

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]

International Legume Database and Information Service

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

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

Morphology General Habit
Perennial herb, shrub, or small subshrub (0.1–)0.6–2.5(–3) m. tall, with several shoots from a woody rootstock, very rarely a small tree to 3(–?4.5) m.
Morphology Stem
Stems glaucous and glabrous to adpressed pubescent.
Morphology Leaves
Leaflets elliptic, oblong-elliptic or oblong-lanceolate, 2–9 cm. long, 0.9–3.5(–4.5) cm. wide, acute and mucronate or rounded at the apex, cuneate, rounded or slightly cordate at the base, slightly to fairly densely pubescent beneath, sometimes glaucous; petiole winged, oblong, obovate, oblanceolate, obcordate or almost round, 0.8–6 cm. long, 0.4–3.5 cm. wide, rounded or narrowly to widely emarginate at the apex, obtuse to slightly cordate at the base; stipules linear to lanceolate, 4–10 mm. long, 0.6–1.5 mm. wide.
Morphology Reproductive morphology Inflorescences
Inflorescences usually elongate and narrow, falsely racemose, the flowers arranged in fascicles along the rhachis, 15–50 cm. long, or flowers all in axillary fascicles; peduncle 0–11 cm. long; pedicels 0.2–2.2 cm. long; bracts ovate to lanceolate, 1.5–4 mm. long, 0.7–1 mm. wide, soon falling.
Morphology Reproductive morphology Flowers Calyx
Calyx pubescent or hairy; tube 2.5–4 mm. long; lobes 3–8.5 mm. long, the upper pair joined for most of their length.
Morphology Reproductive morphology Flowers Corolla
Standard all white or yellow or yellow outside and mauve inside, the veins and outer flush dark purple or crimson, obovate, (1–)1.5– 2.2 cm. long, (1–)1.2–2 cm. wide, glabrous to finely puberulous outside; wings and keel bluish-purple or keel yellow-green tipped purple; rarely flowers all white.
Morphology Reproductive morphology Fruits
Fruit densely yellowish-brown hairy, stipitate, the stipe rapidly enlarging and attaining 3–7 cm.; articles 1–5, broadly elliptic or almost round, strongly compressed, 5.5–9(–13) mm. long, 5–6(–7) mm. wide.
Morphology Reproductive morphology Seeds
Seeds dark crimson-brown, compressed-reniform, longest dimension 4 mm., shorter dimension 3 mm., 1 mm. thick; hilum minute, almost round, the seed somewhat beaked on one side of it.
Distribution
T1 T4 T7 T8
[FTEA]

Uses

Use
Medicine
[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

  • 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