Home | > | List of families | > | Asteraceae | > | Blainvillea | > | gayana |
Synonyms: |
Blainvillea rhomboidea sensu Oliv. & Hiern Wedelia gossweileri S. Moore |
Common names: | |
Frequency: | |
Status: | Native |
Description: |
Erect annual herb. Stems covered in rough hairs. Leaves (sub)opposite, elliptic to ovate with a rather long pointed tip, up to 13 × 8 cm, 3-veined from the base, sparsely hairy; margin serrate-crenate. Capitula somewhat long and narrow, c. 1.2 × 0.5 cm. Involucral bracts c. 1 cm long, oblong-elliptic, hairy and glandular on the outside. Florets whitish, sometimes with short, inconspicuous 2-3-toothed rays. |
Notes: | Beentje, Jeffrey & Hind in FTEA Compositae 3: 737 (2005) treat Blainvillea gayana as conspecific with B. acmella (L.) Phillipson but this does not seem to be universally accepted. |
Derivation of specific name: | gayana: after Claude Gay, 1800-1873, French natural historian. |
Habitat: | A weed of disturbed areas and cultivation, mostly growing in shaded areas. |
Altitude range: (metres) | |
Flowering time: | |
Worldwide distribution: | Widespread in tropical Africa. |
Zimbabwe distribution: | N,W,S |
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 4 May 2008 |
Literature: |
Beentje, H.J. & Ghazanfar, S.A. (eds.) (2005). Compositae (Part 3) Flora of Tropical East Africa Pages 735 - 737. as Blainvillea acmella (Includes a picture). Chapano, C. & Mugarisanwa, N.H. (2003). Plants of the Matobo District National Herbarium and Botanic Garden, Zimbabwe Page 6. 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 23. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 28. Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 31. Wild, H. (1967). The Compositae of the Flora Zambesiaca area. 1. Heliantheae. Kirkia 6(1) Pages 38 - 39. |
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