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Bothriocline laxa
laxa
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Photo: Bart Wursten
Mukuvisi Woodland, office area
Photo: Bart Wursten
Mukuvisi Woodland, office area
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 |
| Description: |
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: | Feb - May |
| 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 |
| Literature: |
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. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 10. As Bothriocline laxa 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. laxaFlora of Mozambique: Bothriocline laxa subsp. laxa
Flora of Zambia: Bothriocline laxa subsp. laxa
External websites:
African Plants: A Photo Guide (Senckenberg): Bothriocline laxaAfrican Plant Database: Bothriocline laxa
BHL (Biodiversity Heritage Library): Bothriocline laxa
EOL (Encyclopedia of Life): Bothriocline laxa
GBIF (Global Biodiversity Information Facility): Bothriocline laxa
Google: Web - Images - Scholar
iNaturalist: Bothriocline laxa
IPNI (International Plant Names Index): Bothriocline laxa
JSTOR Plant Science: Bothriocline laxa
Mansfeld World Database of Agricultural and Horticultural Crops: Bothriocline laxa
Plants of the World Online: Bothriocline laxa
Tropicos: Bothriocline laxa
Wikipedia: Bothriocline laxa
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