Asclepias palustris (K. Schum.) Schltr.

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Synonyms: Gomphocarpus cristatus Decne.
Gomphocarpus palustris K. Schum.
Trachycalymma cristatum (Decne.) Bullock
Common names:
Frequency:
Status: Native
Description:
Erect perennial with annual stems, up to 60 cm tall, growing from a vertical rootstock with lateral tubers. Stem with milky sap, mostly single, unbranched, densely pubescent with white spreading hairs. Leaves opposite, subsessile or very shortly petiolate, linear to lanceolate, 3-7 cm long with prominent veins and white spreading hairs above and on the veins below; margin entire, stiffly pubescent. Flowers in extra-axillary, 4-10-flowered, nodding umbels. Corolla white or greenish, tinged dull pink, particularly towards the apex on the outside, densely pubescent towards the apex outside, hairless on the inside or with minute papillae near the base. Corona lobes pouched with a rounded tip, appearing subspherical, white with a purple tip, the cavity of the lobe with a tooth, tipped with a dense crest of papillae; upper margins with a pair of triangular teeth. Fruit a single follicle, narrowly fusiform, c. 5 × 0.5 cm, erect on a straight pedicel, smooth, densely pubescent.
Notes:
Derivation of specific name:
Habitat: In montane and seasonally waterlogged grassland, occasionally in open woodland.
Altitude range: (metres) 1200 - 2600 m
Flowering time:
Worldwide distribution: Scattered in tropical Africa from Nigeria to Uganda in the north, and Angola to Zimbabwe in the south.
Zimbabwe distribution: N,C,E
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 100 - 101. as Trachycalymma cristatum (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 48. Trachycalymma cristatum


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Other sources of information about Asclepias palustris:

Our websites:

Flora of Malawi: Asclepias palustris
Flora of Mozambique: Asclepias palustris

External websites:

African Plant Database: Asclepias palustris
Biodiversity Explorer (Biodiversity of southern Africa): Asclepias palustris
EOL (Encyclopedia of Life): Asclepias palustris
ePIC (electronic Plant Information Center): Asclepias palustris
Flora Zambesiaca web site: Asclepias palustris
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Asclepias palustris
IPNI (International Plant Names Index): Asclepias palustris
Ispot Southern Africa : Asclepias palustris
JSTOR Plant Science: Asclepias palustris
Kew Herbarium catalogue: Asclepias palustris
Tropicos: Asclepias palustris
West African Plants database: Asclepias palustris


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-16

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2016). Flora of Zimbabwe: Species information: Asclepias palustris.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=145790, retrieved 31 May 2016

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