Fabaceae
Senegalia

Senegalia welwitschii (Oliv.) Kyal. & Boatwr.

First published in Bot. J. Linn. Soc. 172: 511 (2013)
This species is accepted
The native range of this species is S. Tropical Africa to E. Northern Prov. It is a tree and grows primarily in the seasonally dry tropical biome.

Descriptions

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/147099785/147099794

Conservation
LC - least concern
[IUCN]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Zambezian forest, Zambezian woodland
Morphology General Habit
Perennial, Not climbing, Tree
[ILDIS]

Leguminosae, J.P.M. Brenan. Flora Zambesiaca 3:1. 1970

Morphology General Habit
Tree 3-15 m. high with rough bark and broad crown; young branchlets glabrous.
Morphology Leaves Stipules
Stipules not spinescent.
Morphology General Prickles
Prickles in pairs just below the nodes, grey or blackish, up to c. 5(7) mm. long, hooked downwards.
Morphology Leaves
Leaves: petiole with a small to rather large gland; rhachis glabrous, eglandular, or with a gland between the top pair of pinnae; pinnae 2-4(5) pairs; leaflets (2)3-8 pairs, 4-20 x 2·5-13 mm., elliptic or broadly elliptic, sometimes somewhat ovate, except for terminal ones broadest at or near or sometimes below the middle, rounded and often slightly emarginate at the apex, nearly symmetrical at the base, glabrous, with venation rather prominent beneath.
Morphology Reproductive morphology Flowers
Flowers sessile or almost so, white, in spikes 3-13 cm. long on peduncles 0-3 cm. long, produced with the leaves; axis glabrous to slightly pubescent.
Morphology Reproductive morphology Flowers Calyx
Calyx 1·5-1·75 mm. long, glabrous.
Morphology Reproductive morphology Flowers Corolla
Corolla 2·25-3 mm. long, glabrous, 5-lobed.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamen-filaments 4·5-5·5 mm. long, free; anthers c. 0·15 mm. across, with a caducous gland.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary glabrous, on a stipe about half its length.
Morphology Reproductive morphology Fruits
Pods dehiscent, 5·5-16·5 x 1·3-2 cm., glabrous, linear-oblong, usually straight, obscurely venose, blackish to grey-brown, rounded to ± acuminate at the apex.
Morphology Reproductive morphology Seeds
Seeds 9-12 x 10-14 mm., irregularly subcircular to subreniform; central areole large, 6·5-8 x 6·5-8 mm., almost circular, impressed.
[FZ]

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

  • Wood Anatomy Microscope Slides

    • Digital Image © Board of Trustees, RBG Kew 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