Bothriocline laxa N.E. Br.
subsp. laxa

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Bothriocline laxa subsp. laxa

Photo: Bart Wursten
Mukuvisi Woodland, office area

Bothriocline laxa subsp. laxa

Photo: Bart Wursten
Mukuvisi Woodland, office area

Bothriocline laxa subsp. laxa

Photo: Mark Hyde
25, Trafalgar Avenue, Sentosa, Harare

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Synonyms: Erlangea laxa (N.E. Br.) S. Moore
Common names:
Frequency: Common
Status: Native
Erect annual, 0.1-1.2 m. Leaves opposite, the upper alternate; petiole to 2 mm; lamina 3-13 × 1-5.5 cm, elliptic, serrate, gland-dotted, both surfaces finely pilose-strigose or glabrescent. Involucre 3-8 × 4-10 mm. Phyllaries numerous, scarious; inner to c.8 mm, acuminate to aristate. Achenes 1.2-1.5 mm, narrowly obovoid-oblong, pale brown, with 4-5 low, broad ribs. Pappus of a few caducous barbellate setae 1-3 mm.
Notes: It is superficially somewhat similar to Ageratum conyzoides and often grows with it, but it has phyllaries of very different lengths and which therefore overlap one another, whereas A. conyzoides has phyllaries which are all ± the same length.
Derivation of specific name: laxa: open, loose, lax
Habitat: In woodland, grassland and stream sides, often a weed of roadsides and disturbed ground.
Altitude range: (metres) 1280 - 1560 m
Flowering time:
Worldwide distribution: Angola, D. R. Congo,Zambia,Tanzania, Malawi, Zimbabwe, South Africa (Transvaal)
Zimbabwe distribution: N,W,C,E
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Images last updated: Sunday 27 May 2007

Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 86.

Chapano, C., Mugarisanwa, N.H. (2003). Plants of the Matobo District National Herbarium and Botanic Garden, Zimbabwe Page 6. As Bothriocline laxa

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 24.

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

Pope, G.V. (1992). Compositae Flora Zambesiaca 6(1) Pages 164 - 166. As Bothriocline laxa (Includes a picture).

Wild, H. (1978). The Compositae of the Flora Zambesiaca area. 8. Vernonieae (Vernonia). Kirkia 11(1) Pages 111 - 112.

Other sources of information about Bothriocline laxa subsp. laxa:

Our websites:

Flora of Malawi: Bothriocline laxa subsp. laxa
Flora of Mozambique: Bothriocline laxa subsp. laxa
Flora of Zambia: Bothriocline laxa subsp. laxa

External websites:

African Plants: A Photo Guide (Senckenberg): Bothriocline laxa
African Plant Database: Bothriocline laxa
BHL (Biodiversity Heritage Library): Bothriocline laxa
EOL (Encyclopedia of Life): Bothriocline laxa
ePIC (electronic Plant Information Center): Bothriocline laxa
Flora Zambesiaca web site: Bothriocline laxa
GBIF (Global Biodiversity Information Facility): Bothriocline laxa
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Bothriocline laxa
iNaturalist: Bothriocline laxa
IPNI (International Plant Names Index): Bothriocline laxa
JSTOR Plant Science: Bothriocline laxa
Kew Herbarium catalogue: Bothriocline laxa
Mansfeld World Database of Agricultural and Horticultural Crops: Bothriocline laxa
Plants of the World Online: Bothriocline laxa
The Plant List (version 1.1): Bothriocline laxa
Tropicos: Bothriocline laxa
Wikipedia: Bothriocline laxa

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-20

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2020). Flora of Zimbabwe: Species information: Bothriocline laxa subsp. laxa., retrieved 22 January 2020

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