Neorautanenia mitis (A.Rich.) Verdc.

First published in B.Verdcourt & E.C.Trump, Camm. Poison. Pl. E. Afr.: 89 (1969)
This species is accepted
The native range of this species is Tropical & S. Africa. It is a scrambling tuberous geophyte and grows primarily in the seasonally dry tropical biome.

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 bushland and thicket, Zambezian grassland, Zambezian wooded grassland, Sudanian grasslands, Sudanian wooded grassland, Lake Victoria regional mosaic; bushland and thicket, Lake Victoria regional transition zone; grasslands, Lake Victoria
Morphology General Habit
Perennial, Not climbing, Herb
[ILDIS]

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

Morphology General Habit
Subshrubby herb, erect, climbing or scrambling, 0·9–2·4(–10·8) m. long; rootstock tuberous, often conical, frequently exceeding 0·4 m. in width.
Morphology Stem
Stems glabrous to velvety, sometimes flowering just before the leaves are fully expanded.
Morphology Leaves
Leaflets 3, very rarely 4–5, ovate, oblong or almost round in outline, 5–18·5(–21) cm. long, 4–18·5 cm. wide, from entire with every gradation to deeply 3-lobed, often resembling those of the edible fig tree, the lobes triangular-ovate to oblong, acute, acuminate, truncate or even emar-ginate, mucronulate, glabrescent to densely velvety; petioles 2·5–26 cm. long; rhachis 1–9 cm. long; petiolules 3–8 mm. long; stipules linear-lanceolate, 0·5–1·3 cm. long, 2–4 mm. wide.
Morphology Reproductive morphology Inflorescences
Inflorescences rather dense, many-flowered; rhachis 7–34 cm. long; peduncle 4–20 cm. long; pedicels 2–6(–8) mm. long; bracts ovate-lanceolate, (3–)6·5–8 mm. long, 2–2·7 mm. wide.
Morphology Reproductive morphology Flowers Calyx
Calyx adpressed pubescent; tube 3–4 mm. long; lobes 3–6 mm. long.
Morphology Reproductive morphology Flowers Corolla
Standard greyish-violet to greenish-white outside, mauve or bluish-violet with green centre inside, oblate or transversely oblong, 1–1·2 cm. long, 1–1·3 cm. wide; wings mauve or bluish-violet, white at base; keel pale violet, white at base, or greenish tinged mauve.
Morphology Reproductive morphology Fruits
Pods rather swollen, 6·3–10·8(–13) cm. long, 1–1·8(–2·2) cm. wide, densely covered with adpressed pale ferruginous sometimes silky, rarely more stiff, hairs.
Morphology Reproductive morphology Seeds
Seeds black or very dark blackish-red, longest dimension 8–10 mm., shorter dimension 6–8 mm., thickness 4–5·5 mm.
Figures
Fig. 105.
Habitat
Grassland, bushland, open woodland, often in rocky places; 15–1800 m.
Distribution
K1 K2 K3 K4 K6 K7 T1 T2 T3 T4 T5 T6 T7 T8 widespread in tropical Africa
[FTEA]

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

Morphology General Habit
Subshrubby herb, erect, climbing, scrambling or entirely prostrate, 0.9–2.4(10.8) m long; rootstock tuberous, often conical, frequently exceeding 40 cm in width.
Morphology Stem
Stems glabrous to velvety, sometimes flowering just before the leaves are fully expanded.
Morphology Leaves Leaflets
Leaflets 3, very rarely 4–5, 5–18.5(21) × 4–18.5 cm, ovate, oblong or almost round in outline, from entire with every gradation to deeply 3-lobed, often resembling those of the edible fig tree, the lobes triangular-ovate to oblong or subspathulate, acute, acuminate, truncate or even emarginate; mucronulate, glabrescent to densely velvety; petioles 2.5–26 cm long; rhachis 1–9 cm long; petiolules 3–8 mm long; stipules 0.5–1.3 cm × 2–4 mm, linear-lanceolate.
Morphology Reproductive morphology Inflorescences
Inflorescences rather dense, many-flowered; rhachis 7–34 cm long; peduncle 4–20 cm long; pedicels 2–6(8) mm long; bracts (3)6.5–8 × 2–2.7 mm, ovate-lanceolate.
Morphology Reproductive morphology Flowers Calyx
Calyx appressed pubescent; tube 3–4 mm long; lobes 3–6 mm long.
Morphology Reproductive morphology Flowers Corolla
Standard greyish-violet to greenish-white outside, mauve or bluish-violet with green centre inside, 1–1.2 × 1–1.3 mm, oblate or transversely oblong; wings mauve or bluish-violet, white at the base; keel pale violet, white at the base, or greenish tinged mauve.
Morphology Reproductive morphology Fruits
Pods rather swollen, 6.3–10.8(13) × 1–1.8(2.2) cm, (1)4–6-seeded, densely covered with appressed pale ferruginous sometimes silky, rarely more stiff, hairs.
Morphology Reproductive morphology Seeds
Seeds black or very dark blackish-red, 8–10 × 6–8 × 4–5.5 mm.
[FZ]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Subshrubby herb, climbing, scrambling or erect from a tuberous rootstock; stems glabrous or velvety
Morphology Leaves Leaflets
Leaflets ovate, oblong or almost round in outline, 5–20 x 4–18 cm, entire to deeply 3-lobed
Morphology Reproductive morphology Inflorescences
Flowers numerous on a rhachis 7–34 cm long
Morphology Reproductive morphology Flowers Calyx
Calyx appressed pubescent; tube 3–4 mm long; lobes 3–6 mm long
Morphology Reproductive morphology Flowers Corolla
Standard ± greyish outside, mauve or violet and green inside, 1–1.2 cm long
Morphology Reproductive morphology Fruits
Pod rather swollen, 7–14 x 1–1.8 cm, densely covered with appressed pale rusty-red hairs.
Distribution
S3 widespread in tropical Africa.
Ecology
Near sea level.
[FSOM]

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

Morphology General Habit
Mostly erect herb or shrublet 0.4–1 m tall, or less often with prostrate stems* to 1.5 m long, from a large underground tuber up to 45 cm in diameter.
Morphology General Indumentum
Very young stems and foliage densely appressed silvery-grey silky, older stems characteristic pale yellow-brown in colour, sparsely appressed pubescent or glabrescent.
Morphology Leaves Leaflets
Leaflets 3, 5–13 × 2–5.5(12.5) cm, rhombic-obovate, rhombic-oblanceolate to oblanceolate or rarely perfectly round, entire or rarely 3-lobed**, the lateral leaflets somewhat oblique, acute to rounded at the apex, rounded to cuneate at the base, ± densely to sparsely shortly pubescent, rarely persistently velvety; venation finely reticulate; petiole 0–2.8 cm long; rhachis 0.6–3.3 cm long, typically longer than the petiole; stipules 3–9 × 2.5 mm, falcate or oblong-triangular, ribbed, often reflexed.
Morphology Reproductive morphology Inflorescences
Inflorescences 6–29 cm long; flowers 2–3 at each node; true pedicels 3–5 mm long, jointed to the vestigial branchlet; bracts 3–4 mm long, oblong, acute.
Morphology Reproductive morphology Flowers Calyx
Calyx tube 3–5 mm long; lobes 5–5.5 mm long, oblong, obtuse, 2 upper lobes partly joined; lowest lobe the longest, acute.
Morphology Reproductive morphology Flowers Corolla
Standard dark blue or mauve, bright inside, ± greyish outside (rarely flowers yellow, fide Leach & Noel 274), c. 1 cm long.
Morphology Reproductive morphology Fruits
Pods 7–10.5 × 1.5–1.7 cm, linear-oblong, with ± dense short and longer hairs (silky when young), 2–5-seeded.
Morphology Reproductive morphology Seeds
Seeds black, 12–13 × 9–11 × 5–7 mm, rounded-oblong or oblong-reniform, compressed.
[FZ]

Papilionaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:2. 1958

Morphology General Habit
A strong climber over shrubs or sometimes suberect
Morphology Reproductive morphology Flowers
Flowers blue purple.
[FWTA]

Uses

Use
Miscellaneous, Toxins
[ILDIS]

Common Names

English
Gemsbok bean

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 Somalia

    • Flora of Somalia
    • 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
  • Flora of West Tropical Africa

    • Flora of West Tropical 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 Backbone Distributions

    • 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
  • 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
  • Plants and People Africa

    • Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    • © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/