Home | > | List of families | > | Orchidaceae | > | Disa | > | rhodantha |
Synonyms: | |
Common names: | |
Frequency: | Local and occasional |
Status: | Native |
Description: |
Terrestrial herb with separate fertile and sterile shoots. Sterile shoots 3–4-leaved; leaves erect, folded along the length, narrowly elliptic to linear, 20–30 cm long, often petiolate. Fertile shoots with 8–16 leaves along the stem, grading into the floral bracts, mostly sheathing, narrowly lanceolate, 3–10 cm long. Inflorescence dense, mostly 10–15 cm long, 15–30-flowered. Flowers facing down, pink to red, lip yellow to pink. Dorsal sepal helmet-shaped, 7–10 mm long, 4–5 mm wide and 3.5–4.5 mm deep, with a slender spur, 7–17 mm long, ascending, apex somewhat swollen.Lateral sepals oblong, 7–10 mm long. Petals obliquely narrowly oblong, 5.5–8 mm long, somewhat variable in shape. Lip pendent, more or less narrowly oblanceolate, 6–7 mm long, rarely narrowly elliptic, apical margins sometimes faintly serrate. |
Notes: | The Zimbabwean population differs from South African material in a somewhat longer spur which is not deflexed at the apex. More research is needed to establish whether this difference would merit it taxonomic distinction. |
Derivation of specific name: | rhodantha: with rose-red flowers |
Habitat: | Montane grassland |
Altitude range: (metres) | |
Flowering time: | Dec - Feb |
Worldwide distribution: | Zimbabwe and South Africa. |
Zimbabwe distribution: | E |
Growth form(s): | Terrestrial. |
Endemic status: | |
Red data list status: | Lower Risk - near threatened |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Literature: |
Ball, J.S. (2009). Terrestrial African Orchids, A Selected Review. Pages 64 - 65. (Includes a picture). Fibeck, W. & Dare, M. (1993). Terrestrial Orchids in Zimbabwe. Excelsa 16 Page 56. Golding, J.S. (ed.) (2002). Zimbabwe Plant Red Data List. Southern African Plant Red Data Lists. SABONET 14 Page 175. Grosvenor, R.K. (1976). A list of orchids indigenous in Rhodesia. Excelsa 6 Page 80. Johnson, S., Bytebier, B, & Stärker H. (2015). Orchids of South Africa, a Field Guide Struik Nature, Cape Town South Africa Page 223. (Includes a picture). La Croix, I. & Cribb, P.J. (1995). Orchidaceae (Part 1) Flora Zambesiaca 11(1) Page 178. Linder, H.P. & Kurzweil, H. (1999). Orchids of Southern Africa A.A. Balkema, Rotterdam, the Netherlands ISBN 90-5410-445-7 Pages 219 - 220. (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 95. McMurtry, D., Grobler, L., Grobler, J. & Burns, S. (2008). Field Guide to the ORCHIDS of Northern South Africa and Swaziland Umdaus Press, PO Box 11059 Hatfield 0028 South Africa Pages 190 - 191. (Includes a picture). |
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