Sonchus schweinfurthii Oliv. & Hiern

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Photo: Bart Wursten
Greystone Park Nature Reserve

Photo: Bart Wursten
Small Bridge Dam

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Synonyms:	Sonchus bipontini Asch. var. pinnatifidus sensu Eyles
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Description:	Erect perennial herb, 1-1.5 m (rarely up to 2m). Stems solitary from a semi-woody taproot, branching near the inflorescence. Leaves clasping the stem, variously pinnately lobed, sometimes almost entire, glabrous, glaucous or even somewhat variegated; margins finely serrated. Capitula in small terminal clusters, sometimes solitary; inflorescence branches covered in brown woolly hairs. Florets numerous, yellow, without rays.
Notes:
Derivation of specific name:	schweinfurthii: named after Dr Georg August Schweinfurth (1836-1925), german botanical collector and taxonomist.
Habitat:
Altitude range:
Flowering time:	Dec - Jan
Worldwide distribution:	Widespread in Africa.
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Red data list status:
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Spot characters:	Display spot characters for this species
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 107. Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 52. As Sonchus schweinfurtaii 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 28. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 33. Pope, G.V. (1992). Compositae Flora Zambesiaca 6(1) Pages 224 - 226. (Includes a picture).

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Flora of Malawi: Sonchus schweinfurthii
Flora of Mozambique: Sonchus schweinfurthii
Flora of Zambia: Sonchus schweinfurthii
Flora of Zimbabwe: Sonchus schweinfurthii

External websites:

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