Fabaceae
Vigna

Vigna hosei (Craib) Backer

First published in Geill. Handb. Jav. Theeonkr.: 153 (1924)
This species is accepted
The native range of this species is Taiwan, W. Malesia. It is a climbing annual or perennial and grows primarily in the wet tropical biome.

Descriptions

International Legume Database and Information Service

Morphology General Habit
Perennial, Climbing/Not climbing, Herb
Vernacular
Sarawak Bean
[ILDIS]

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

Morphology General Habit
Annual or perennial, creeping, up to a few metres long.
Morphology Stem
Stem glabrous to villous, hairs up to 0.8 mm long.
Morphology Leaves Leaflets
Leaflets 3, 1.5–9 × 1.5–2.5 cm, obtuse and mucronulate at the apex, rounded-obtuse at the base, pubescent; petiole 1.5–8 cm long; rhachis 0.2–1.5 cm long; stipules 2.5–3 × 0.8 mm, bilobed at the base with lobes unequal, 3-nerved.
Morphology Reproductive morphology Inflorescences
Peduncle 2–8 cm × 0.2–0.8 mm, slightly pubescent; rhachis 0–2 cm long, 1–12-noded, internodes 2–3 mm long.
Morphology Reproductive morphology Flowers
Flower yellow, 7–8 × 7–10 mm; pedicel 1–3 mm long, expanding as the pod matures; bracteoles c. 1 mm long, 1-nerved.
Morphology Reproductive morphology Flowers Calyx
Calyx slightly pubescent; tube c. 1 mm long; lobes deltate, 0.8–1 mm long, lower as long as the laterals, upper united in a rounded and emarginate lip.
Morphology Reproductive morphology Flowers Corolla
Standard with two U-shaped appendages; keel slightly twisted towards the left, without a beak.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 3–4-ovuled.
Morphology Reproductive morphology Fruits
Pod 2–3 cm × c. 4 mm, linear-cylindrical, slightly curved, glabrous to pubescent, with a short curved beak.
Morphology Reproductive morphology Seeds
Seed c. 5 × 3 mm; hilum 2 mm long, almost central; rim aril reduced, not excentric.
[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]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/170440/1313900

Conservation
DD - data deficient
[IUCN]

Uses

Use
Environmental
[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

  • 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

  • Kew Science Photographs

    • Copyright applied to individual images

  • 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