Trichodesma zeylanicum (Burm. f.) R. Br.

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Photo: Mark Hyde
Mazvikadei Dam wall

Photo: Bart Wursten
Mana Pools, by main road to camp

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Synonyms:	Borago zeylanica Burm. f.
Common names:	Late weed (English)
Frequency:
Status:
Description:	Densely bristly-hairy annual herb to 1 m. Leaves narrowly elliptic. Flowers becoming nodding, in terminal 1-sided bracteate inflorescences. Sepals bristly hairy, enlarging in fruit. Corolla 7-9 mm (shorter than our other Trichodesma spp.), scarcely exserted from the sepals; lobes pale blue to lilac or pinkish. Nutlets 4, smooth and shiny, usually mottled with grey and brown on the outer surface.
Notes:
Derivation of specific name:	zeylanicum: from Sri Lanka (Ceylon)
Habitat:
Flowering time:
Worldwide distribution:	Tropics and subtropics of Old World; in Africa in east and southern Africa only
Botswana distribution:
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:	Utetheisa pulchella (Food plant)
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 120 - 121. (Includes a picture). Brummitt, R.K. (1990). Trichodesma Flora Zambesiaca 7(4) Pages 95 - 96. 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 38. 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 30. Martins, E.S. (1990). Boraginaceae Flora Zambesiaca 7(4) Pages 95 - 96. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 36. Pickering, H. & Roe, E. (2009). Wild Flowers of the Victoria Falls Area Helen Pickering, London Page 45. (Includes a picture). Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 41. Wild, H. (1955). Common Rhodesian Weeds Government of Rhodesia, Salisbury Page 82. (Includes a picture).

Other sources of information about Trichodesma zeylanicum:

Our websites:

Flora of Burundi: Trichodesma zeylanicum
Flora of Malawi: Trichodesma zeylanicum
Flora of Mozambique: Trichodesma zeylanicum
Flora of Zambia: Trichodesma zeylanicum
Flora of Zimbabwe: Trichodesma zeylanicum

External websites:

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