Acmella caulirhiza Delile

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Photo: Bart Wursten
Ndundu Lodge, Vumba

Photo: Bart Wursten
Bridal Veil Falls, Chimanimani

Photo: Bart Wursten
Near Chalet 2, Chirinda Forest

Photo: Bart Wursten
Managers house, SDH CHA Sarl Tea Estate, Gurue, Zambezia.

Photo: Bart Wursten
Main road from Thazima Gate, Nyika National Park

Photo: Bart Wursten
Nhahomba area, Chimanimani National Reserve

Photo: Bart Wursten
Morumbodzi Falls,lower slopes Mt Gorongosa

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Synonyms:	Acmella mauritiana Rich. ex Pers. Spilanthes acmella sensu Oliv. & Hiern p.p. Spilanthes africana DC. Spilanthes mauritiana DC.
Common names:
Frequency:
Status:	Native
Description:	Annual creeping or trailing herb, upper parts sometimes erect, up to 30 cm. Leaves opposite, ovate, up to 5 × 3 cm, 3-veined from the base, sparsely hairy on both surfaces particularly on the veins when young; margin serrate-crenate to almost entire. Capitula solitary, axillary and terminal on long peduncles, deep yellow. Ray florets usually present, 3-4 mm long, 3-toothed at the apex, yellow or rarely white.
Type location:	Mauritius
Notes:
Derivation of specific name:
Habitat:	Weed in lawns and gardens in high rainfall areas; elsewhere in wet habitats such as by streams and rivers or along roadsides.
Altitude range: (metres)
Flowering time:
Worldwide distribution:	Widespread in Tropical Africa, South Africa, Eswatini and Mauritius.
Botanical divisions:
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Literature:	Baumann, G. (2005). Photographic Guide to Wildflowers of Malawi Wildlife and Environmental Society of Malawi Pages 170 - 171. as Spilanthes mauritiana (Includes a picture). Beentje, H.J. & Ghazanfar, S.A. (eds.) (2005). Compositae (Part 3) Flora of Tropical East Africa Pages 730 - 733. (Includes a picture). Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 52. as Spilanthes mauritiana 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 35. as Spilanthes mauritiana 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. as Spilanthes mauritiana Maquet, P. & Lawalree, A. (1985). Asteraceae Flore du Rwanda Spermatophytes Volume III Pages 629 - 631. as Spilanthes mauritiana (Includes a picture). Ntore, S. & al. (2024). Checklist of the vascular plants of Burundi Page 49. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 33. as Spilanthes mauritiana and Acmella caulirhiza Pooley, E. (1998). A Field Guide to the Wild Flowers of KwaZulu-Natal and the Eastern Region. Natal Flora Publications Trust. Durban. Pages 218 - 219. as Spilanthes mauritiana (Includes a picture). Strugnell, A.M. (2006). A Checklist of the Spermatophytes of Mount Mulanje, Malawi Scripta Botanica Belgica 34 National Botanic Garden of Belgium Page 58. as Spilanthes mauritiana Wild, H. (1967). The Compositae of the Flora Zambesiaca area. 1. Heliantheae. Kirkia 6(1) Pages 60 - 61. as Spilanthes mauritiana Wursten, B., Timberlake, J. & Darbyshire, I. (2017). The Chimanimani Mountains: an updated checklist. Kirkia 19(1) Page 89. as Spilanthes mauritiana

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Flora of Burundi: Acmella caulirhiza
Flora of Malawi: Acmella caulirhiza
Flora of Mozambique: Acmella caulirhiza
Flora of Rwanda: Acmella caulirhiza
Flora of Zambia: Acmella caulirhiza
Flora of Zimbabwe: Acmella caulirhiza

External websites:

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