Fabaceae
Vigna

Vigna hirtella Ridl.

First published in J. Fed. Malay States Mus. 10: 132 (1920)
This species is accepted
The native range of this species is Indo-China to W. Malesia. It is a climbing perennial and grows primarily in the seasonally dry tropical biome.

Descriptions

Seed Collecting Guide. RBG Kew (2013-2016)

Morphology General Habit
habit a twining herb, stem rather thick, densely clothed with long retrorse or spreading white brown hairs (1.1-1.5 mm)
Morphology Leaves
leaf petioles 7-12 cm, covered with short (0.5-.07 mm) white hairs on the ridge leaf leaflets rather densely covered with whitish hairs on both surfaces (0.5-1.0 mm long)
Morphology Leaves Leaflets
terminal leaflets ovate, acute or acuminate at the apex, obtuse at the base, 7.5-10.0 x 5.5-6.8 cm; lateral leaflets obliquely ovate, acute at the apex, rounded at the base
Morphology Reproductive morphology Inflorescences
inflorescence 8-12 flowered; peduncles long, 20-25 cm long, covered with short (0.3-0.5 mm) white retrorse hairs; rachis 1.1 cm long, nearly glabrous; primary bract small, rhombic, acute at the apex, truncate at the base
Morphology Reproductive morphology Flowers
flower golden yellow, calyx campanulate, glabrous, 4 mm long, tube 3.2 mm long; standard asymmetrical, obliquely broadly elliptic, 15.1 x 19.4 mm right wing half concealing upper part of the keel-petals left wing spreading horizontally, supported by a pocket on the left-hand keel-petal-fruit pendulous, linear, cylindrical, glabrous, blackish brown when mature, 15-19 seeded
Morphology Reproductive morphology Seeds
seed oblong, brown densely mottled with black when mature, surface smooth, 3.3 x 2.4 x 1.8.
Ecology
ecology wet highland sites. altitude25 - 1700 m
Distribution
Northern India, Bangladesh, South China, Myanamar, Thailand, Laos, Vietnam, Malaysia.
Conservation
conservation near endangered
Phenology
phenology Flower (october – november), fruit (october - november)
[SCG]

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

Morphology General Habit
Perennial, Climbing, Herb
[ILDIS]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • 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

  • Seed Collection Guides

    • Seed Collection Guides
    • http://creativecommons.org/licenses/by-nc-sa/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