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This species is accepted, and its native range is N. Botswana.
A specimen from Kew's Herbarium

[FZ]

Flora Zambesiaca Asparagaceae by Sebsebe Demissew

Morphology General Habit
Erect shrub 25–60 cm high from an erect rhizome.
Morphology Stem
Stems branching from base.
Morphology Branches
Branches in older parts rounded, younger parts angular, lined with raised papillae; spines small, 0.5–1 mm long on bases of older branches, absent in young parts.
Morphology Stem Cladodes
Cladodes in fascicles of 3–6, angled with raised papillae, unequal, 4–10 mm long; stipules white, overlapping, 1–1.5 × c.0.5 mm, elliptic with accuminate apex.
Morphology Reproductive morphology Flowers
Flowers solitary, axillary in cladode fascicles; pedicels 2.5–3.5 mm long with raised papillae, articulated above the middle.
Morphology Reproductive morphology Flowers Tepal
Tepals 6, elliptic, c.2.5 × 0.6 mm.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 6, with filament c.2 mm long.
Morphology Reproductive morphology Fruits
Berry orange at maturity, c.6 mm in diameter, 1-seeded.
Distribution
Only recorded from Botswana.
Ecology
Burkea–Combretum savanna with Terminalia sericea and Ochna pulchra on deep fine-grained sand; c.1000 m.
Conservation
Conservation notes: Known only from the type, which is in a common habitat. Possibly Vulnerable.

[KBu]

Demissew, S. (2008). Four new species of Asparagus (Asparagaceae) from the Flora Zambesiaca area. Kew Bulletin 63: 269. https://doi.org/10.1007/s12225-008-9017-y

Conservation
Data Deficient. The species is known only from the type collection made in 1965. This might be due to poor collecting in the area or the rarity of the species. Therefore it is very difficult to assess its conservation status based on the Criteria set by IUCN (2001).
Distribution
Known so far from a single locality in the Northern division of Botswana.
Ecology
Burkea africana-Combretum zeyheri savanna with Terminalia sericea, Ochna pulchra, Bauhinia micrantha and Dichrostachys cinerea on deep, fine-grained sand; no altitude given.
Morphology Branches
Branches in older parts terete, in younger parts angular, lined with raised papillae, with or without very short spines 0.5 – 1 mm long
Morphology General Habit
Erect shrub 25 – 60 cm high from an erect rhizome
Morphology Reproductive morphology Flowers
Flowers solitary, axillary in cladode fascicles; pedicels 2.5 – 3.5 mm long with raised papillae, articulated above the middle
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 6, with filament c. 2 mm long
Morphology Reproductive morphology Flowers Perianth
Perianth of 6 tepals, c. 2.5 × 0.6 mm
Morphology Reproductive morphology Fruits
Berry orange at maturity, c. 6 mm in diam., 1-seeded.
Morphology Stem
Stems branching from base
Morphology Stem Cladodes
Cladodes in fascicles of 3 – 6, angular with raised papillae, unequal, 4 – 10 mm long; stipules white, elliptic with acuminate apex, overlapping, 1 – 1.5 × c. 0.5 mm
Note
The new species is related to the widespread Asparagus africanus Lam. but differs in its small size (stems 25 – 60 cm long), erect habit, angular branches, and cladodes with raised papillae, and solitary axillary flowers with pedicels articulated above the middle. In contrast, A. africanus has stems up to 4 m long, an erect to scandent habit, branches and cladodes terete without papillae, axillary and/or terminal flowers and pedicels articulated below the middle. Asparagus botswanicus “the asparagus of Botswana” is named after the country Botswana, where the species is apparently endemic.
Type
Botswana, Northern Division, 69 km W of Nokaneng, fr. 12 March 1965, H. Wild & R. B. Drummond 6895 (holotypus K; isotypi LISC, ?SRGH).

Native to:

Botswana

Asparagus botswanicus Sebsebe appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bingham, M.G. [415], Zimbabwe K000400164
Wild, H. [6895], Botswana K000400163

First published in Kew Bull. 63: 269 (2008)

Accepted by

  • Timberlake, J.R. & Martins, E.S. (eds.) (2008). Flora Zambesiaca 13(1): 1-140. Royal Botanic Gardens, Kew.

Literature

Kew Bulletin

  • IUCN (2001). IUCN Red List Categories and Criteria: Version 3.1. Prepared by the IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, UK.
  • Jessop, J. P. (1966). The genus Asparagus in Southern Africa. Bothalia 9 1: 31 – 96.
  • Malcomber, S. T. & Sebsebe, D. (1993). The status of Protasparagaus and Myrsiphyllum in the Asparagaceae. Kew Bull. 48: 63 – 78.
  • Obermeyer, A. A. & Immelman, K. L. (1992). Protasparagus. In: O. A. Leistner (ed.), Flora of Southern Africa Vol. 5 (3): 71 – 82. National Botanical Institute, Pretoria.
  • Sebsebe Demissew (1995). Asparagaceae. In: M. Thulin (ed.), Flora of Somalia Vol. 4: 24 – 27. Royal Botanic Gardens, Kew.
  • ____ (1996). Asparagaceae. In: S. Edwards, Sebsebe Demissew & I. Hedberg (eds.), Flora of Ethiopia and Eritrea Vol. 6: 67 – 73. National Herbarium, Addis Ababa and Department of Systematic Botany, University of Uppsala, Uppsala.
  • ____ (2006). Asparagaceae. In: H. Beentje & S. Ghazanfar (eds.), Flora of Tropical East Africa: 1 – 22. Royal Botanic Gardens, Kew.

Flora Zambesiaca

  • in Kew Bull. 63: 269 (2008).

Flora Zambesiaca
Flora Zambesiaca
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Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0