Sium repandum Welw. ex Hiern

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Photo: Bart Wursten
Nyangombe Falls, Nyanga NP

Photo: Bart Wursten
Bridal Veil Falls, Chimanimani

Photo: Bart Wursten
BR

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Synonyms:
Common names:	Water parsnip (English)
Frequency:
Status:	Native
Description:	Erect, hairless perennial herb, up to 150 cm tall, growing from a creeping rhizome. Stems hollow, grooved, sometimes tinged red. Leaves pinnate, up to 30 cm long; leaflets oblong-lanceolate, up to 10 × 2 cm; margin with close-set regular teeth curving over each other as to give an almost scalloped appearance. Flowers in compound umbels with 7-24 rays, greenish-white to yellowish; bracts numerous, linear, up to 2 cm long; bracteoles similar to bracts. Fruit ovate-oblong, c. 2 × 1 mm, reddish-brown when ripe.
Notes:	A specimen found in BR, collected in 1974, by Bamps, Symoens and Vanden Berghen (no. 760) is from the same place and is possibly from the same colony of plants, namely at the Bridal Veil Falls, as Bart's photographs taken on 31 Jan 2006.
Derivation of specific name:	repandum: wavy, undulating, referring to the leaf margin.
Habitat:	Occurring along streams, often standing in water.
Altitude range: (metres)
Flowering time:	Jan - Apr
Worldwide distribution:	Angola, Cameroon, Tanzania, Malawi, Mozambique, Zambia, Zimbabwe, Eswatini and South Africa.
Zimbabwe distribution:	E
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:	Wednesday 22 July 2009
Literature:	Cannon, J.F.M. (1978). Apiaceae Flora Zambesiaca 4 Pages 597 - 598. (Includes a picture). Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 51. 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 24. 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 18.

Other sources of information about Sium repandum:

Our websites:

Flora of Mozambique: Sium repandum
Flora of Zambia: Sium repandum

External websites:

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