Fabaceae
Vachellia

Vachellia borleae (Burtt Davy) Kyal. & Boatwr.

First published in Bot. J. Linn. Soc. 172: 511 (2013)
This species is accepted
The native range of this species is SE. Zimbabwe, S. Mozambique to S. Africa. It is a shrub or tree and grows primarily in the seasonally dry tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/146442986/146442988

Conservation
LC - least concern
[IUCN]

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

Morphology General Habit
Shrub 1-5 m. high; young branchlets with numerous pale to reddish sessile pustular glands, sometimes viscid, in addition puberulous with hairs less than 0·25 mm. long; hairs sometimes absent.
Morphology Leaves Stipules
Stipules spinescent, up to 5 mm. long, slender, whitish, sometimes slightly deflexed; “ant-galls” and other prickles absent.
Morphology Leaves
Leaves with a small sessile gland at the junction of each of the 1(2) top pairs of pinnae; a rather large sessile gland at or below the junction of the lowest pair, or often absent; smaller scattered sessile glands present and sometimes numerous on the petiole and rhachides; pinnae 2-10 pairs; leaflets (3) 5-15 pairs, 1·5-6·5 x 1-2 mm., margins clearly crenulate-glandular and usually also minutely ciliolate, shortly spinulose-mucronate or not at the apex; surface also with ± numerous pale or dark sessile glands; lateral nerves invisible beneath.
Morphology Reproductive morphology Flowers
Flowers yellow, in axillary pedunculate heads 8-10 mm. in diam. scattered along the leafy shoots of the current season; involucel 2/5-4/5-way up the peduncle, 1-2 mm. long.
Morphology Reproductive morphology Flowers Calyx
Calyx 1·5-2 mm. long, subglabrous.
Morphology Reproductive morphology Flowers Corolla
Corolla 2·5 mm. long, glabrous outside.
Morphology Reproductive morphology Fruits
Pods dehiscent, 3·5-7 x 0·6-1 cm., falcate, ± moniliform and constricted between the seeds, with numerous rather small pale to dark sessile pustular glands on the surface, in addition puberulous.
Morphology Reproductive morphology Seeds
Seeds olive, 5-6 x 4·5-5 mm., elliptic to subcircular, compressed; areole 3·5-4 x 2·5-3·5 mm.
[FZ]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Zambezian woodland, Kalahari-Highveld Regional Transition Zone - woodland
Morphology General Habit
Perennial, Not climbing, Shrub/Tree
[ILDIS]

Sources

  • 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 Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 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 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0