Home | > | List of families | > | Polygonaceae | > | Emex | > | australis |
Synonyms: |
Emex spinosa sensu Dinter |
Common names: | Cape spinach (English) |
Frequency: | |
Status: | Probably introduced |
Description: |
Much-branched erect or prostrate herb with a semi-woody rootstock. Stems up to 30 cm long, sometimes longer, grooved, hairless, green, often tinged red towards the base. Leaves ovate oblong, 3.5-6 cm long, truncate or slightly cordate at the base and more or less decurrent on the petiole; petiole 3-10 cm long, channelled. Flowers unisexual on the same plant, green with brownish midribs on the perianth segments. Male flowers in terminal and axillary pedunculate clusters; female flowers sessile. Fruit a 3-sided nut, 12-13 mm wide, including rigid spines at the corners. |
Notes: | |
Derivation of specific name: | australis: southern |
Habitat: | Along roadsides and as a weed in wet disturbed places and irrigated fields. |
Altitude range: | 120 - 1200 m |
Flowering time: | |
Worldwide distribution: | Native Namibia and South Africa. Probably introduced to Zimbabwe, Mozambique and Botswana. Definitely introduced further North into East Africa, Madagascar, Australasia and USA. |
Mozambique distribution: | M |
Growth form(s): | |
Endemic status: | |
Red data list status: | |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Content last updated: | Thursday 8 September 2016 |
Literature: |
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 68. Nogueira, I., Ortiz, S. & Paiva, J.A.R. (2006). Polygonaceae Flora Zambesiaca 9(3) Pages 38 - 40. (Includes a picture). Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 93. Wild, H. (1955). Common Rhodesian Weeds Government of Rhodesia, Salisbury Page 18. (Includes a picture). |
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