Home | > | List of families | > | Apocynaceae subfamilies Asclepiadoideae and Secamonoideae | > | Asclepias | > | palustris |
Synonyms: |
Gomphocarpus cristatus Decne. Gomphocarpus palustris K. Schum. Trachycalymma cristatum (Decne.) Bullock |
Common names: | |
Frequency: | Occasional |
Status: | Native |
Description: |
Perennial herb up to 60 cm tall growing from a vertical tuberous rootstock; most parts hairy to pubescent; stems usually solitary and unbranched, erect; leaves subsessile or with petiole up to 3 mm long, blade 3-8 x 0.1-1.3 cm, linear to lanceolate, venation prominent; inflorescences extra-axillary with 4-10 flowers in nodding umbel, peduncles 1-13 cm long and lengthening in fruit; calyx lobes 3-6 x 1-1.5 mm, lanceolate to broadly triangular, purple; corolla campanulate or occasionally reflexed, white or greenish, tinged with dull pink, lobes 5-8 x 3-5 mm, ovate; corona lobes cucullate but with a rounded tip making it appear subglobose, c. 3 mm long, white with purple tip; follicle erect, c. 5 x 0.5 cm, narrowly fusiform; seeds c. 0.4 x 0.3 cm, ovate. |
Type location: |
Angola |
Notes: | |
Derivation of specific name: | palustris: swampy or marshy, in reference to its typical habitat |
Habitat: | In montane and seasonally waterlogged grassland, occasionally in open woodland. |
Altitude range: | 1200 - 2200 m |
Flowering time: | Oct - Jan |
Worldwide distribution: | Scattered in tropical Africa from Nigeria to Uganda in the north, and Angola to Zimbabwe in the south. |
Zambian distribution (Flora Zambesiaca): | B,N,W,C,E |
Zambian distribution (Provinces): | |
Growth form(s): | Perennial. |
Endemic status: | |
Red data list status: | |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Content last updated: | Wednesday 9 February 2022 |
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). Binns, B. (1968). A First Check List of the Herbaceous Flora of Malawi The Government Printer, Zomba, Malawi Page 20. also as Gomphocarpus palustris Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 75. as Trachycalymma cristatum Goyder, D.J. (2001). A revision of the tropical African genus Trachycalymma (K. Schum.) Bullock Kew Bulletin 56 Pages 134 - 137. as Trachycalymma cristatum (Includes a picture). Goyder, D.J. (2009). A synopsis of Asclepias (Apocynaceae: Asclepiadoideae) in tropical Africa Kew Bulletin 64 Pages 381 - 383. Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Apocynaceae (Part 2) Flora Zambesiaca 7(2) Pages 268 - 269. (Includes a picture). 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 22. as Trachycalymma cristatum 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 Wursten, B., Timberlake, J. & Darbyshire, I. (2017). The Chimanimani Mountains: an updated checklist. Kirkia 19(1) Page 88. |
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