Sida acuta Burm.f.

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Sida acuta

Picture: Bart Wursten
By the lodges, Lake Kyle Recreational Park

Sida acuta

Picture: Bart Wursten
By the lodges, Lake Kyle Recreational Park

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Synonyms: Sida carpinifolia sensu Mast.
Common names:
Frequency: Common
Status: Native
Erect branched suffrutex up to c. 1 m tall, rarely taller. Stems green, mostly hairless to stellate-hairy, particularly on younger parts. Leaves more or less narrowly lanceolate, 2-6(10) cm long; apex acute; base obtuse to rounded, hairless to sparsely stellate-hairy; margin regularly serrate; petiole c. 2.5 mm, pubescent. Stipules linear, usually longer than the petiole. Flowers axillary, solitary or 2 together. Calyx 6-8 mm long, somewhat angular, saucer-shaped, hairless, lobed to the middle; petals as long as calyx, yellow. Mericarps 5-6, c. 4 mm long, birostrate, grooved between the awns.
Type location:
Notes: This species is fairly easily distinguished from others in this genus by the narrowly lanceolate, acute leaves, which are often held in one plane on younger branches.
Derivation of specific name: acuta: pointed, acute, referring to the leaf shape.
Habitat: In disturbed areas, along roadsides and as a weed of cultivation.
Altitude range: Up to 1500 m
Flowering time:
Worldwide distribution: Pantropical. Also in Namibia and Mpumalanga, KwaZulu-Natal, South Africa.
Zambian distribution (Flora Zambesiaca): W
Zambian distribution (Provinces): Lk
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Content last updated: Friday 30 March 2012

Baumann, G. (2005). Photographic Guide to Wildflowers of Malawi Wildlife and Environmental Society of Malawi Pages 96 - 97. (Includes a picture).

Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 51. As Sida acuta acuta

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 84.

Exell, A.W. (1961). Malvaceae Flora Zambesiaca 1(2) Pages 477 - 479.

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 61.

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 75.

Strugnell, A.M. (2006). A Checklist of the Spermatophytes of Mount Mulanje, Malawi Scripta Botanica Belgica 34 National Botanic Garden of Belgium Page 119.

Other sources of information about Sida acuta:

Our websites:

Flora of Caprivi: cultivated Sida acuta
Flora of Malawi: Sida acuta
Flora of Mozambique: Sida acuta
Flora of Zimbabwe: Sida acuta

External websites:

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

Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-24

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2024). Flora of Zambia: Species information: Sida acuta., retrieved 20 June 2024

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