Alysicarpus rugosus (Willd.) DC.
subsp. rugosus

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Synonyms: Alysicarpus violaceus (Forssk.) Schindl.p.p.
Alysicarpus violaceus (Forssk.) Schindl. var. pilosus Schindl.
Hedysarum rugosum Willd.
Common names:
Status: Native
Erect, annual herb (in this variety), up to 1 m tall. Stems pubescent, pilose or almost hairless. Leaves 1-foliolate or rarely 3-foliolate; leaflets oblong, ovate-lanceolate, linear-lanceolate or linear, 1.5–11 cm long, rounded or subcordate at the base, finely puberulous and with longer hairs beneath; petiole 2–17 mm long; stipules lanceolate, 0.5–3 cm long. Inflorescences axillary, terminal or leaf-opposed, dense to lax; peduncle 1–3 cm long. Calyx with lobes lanceolate, 5–9 mm long, overlapping and rounded or subcordate at the base, ciliate with white hairs. Standard whitish, pinkish-buff, reddish-purple or bluish, obovate, 6–7 mm long; keel often greenish. Fruit 5–10 mm long, scarcely exserted from the calyx, much constricted between the articles; articles with strong, close transverse ridges which join up here and there, hairless or pubescent.
Derivation of specific name: rugosus: with a wrinkled surface (rugose).
Habitat: In seasonally waterlogged areas in grassland, Acacia or mopane woodland, on sandy river banks, often on black clay soils.
Flowering time:
Worldwide distribution: Mali, Eritrea, Ethiopia, Somalia, Kenya, Tanzania, Malawi, Mozambique, Zambia, Zimbabwe, Botswana, Namibia and Madagascar.
Botswana distribution: N
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species

Baumann, G. (2005). Photographic Guide to Wildflowers of Malawi Wildlife and Environmental Society of Malawi Pages 36 - 37. (Includes a picture).

Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 65.

Drummond, R.B. (1972). A list of Rhodesian Legumes. Kirkia 8(2) Page 216.

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 46.

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 57.

Pooley, E. (1998). A Field Guide to the Wild Flowers of KwaZulu-Natal and the Eastern Region. Natal Flora Publications Trust. Durban. Pages 60 - 61. as Alysicarpus rugosus

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 61.

Van Wyk, B. & Malan, S. (1988). Field Guide to the Wild Flowers of the Witwatersrand and Pretoria Region Struik, Cape Town Page 206.

Verdcourt, B. (2000). Papilionoideae Flora Zambesiaca 3(6) Pages 40 - 41.

Other sources of information about Alysicarpus rugosus subsp. rugosus:

Our websites:

Flora of Caprivi: Alysicarpus rugosus subsp. rugosus
Flora of Malawi: Alysicarpus rugosus subsp. rugosus
Flora of Mozambique: Alysicarpus rugosus subsp. rugosus
Flora of Zambia: Alysicarpus rugosus subsp. rugosus
Flora of Zimbabwe: Alysicarpus rugosus subsp. rugosus

External websites:

African Plants: A Photo Guide (Senckenberg): Alysicarpus rugosus
African Plant Database: Alysicarpus rugosus
BHL (Biodiversity Heritage Library): Alysicarpus rugosus
EOL (Encyclopedia of Life): Alysicarpus rugosus
GBIF (Global Biodiversity Information Facility): Alysicarpus rugosus
Google: Web - Images - Scholar
iNaturalist: Alysicarpus rugosus
IPNI (International Plant Names Index): Alysicarpus rugosus
JSTOR Plant Science: Alysicarpus rugosus
Mansfeld World Database of Agricultural and Horticultural Crops: Alysicarpus rugosus
Plants of the World Online: Alysicarpus rugosus
Tropicos: Alysicarpus rugosus
Wikipedia: Alysicarpus rugosus

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Botswana: Species information: Alysicarpus rugosus subsp. rugosus., retrieved 20 July 2024

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