Disa welwitschii Rchb.f. 1865 SECTION Micranthe

Plant & Flowers in situ South Africa

Photo courtesy of Swiss Orchid Foundation at the Herbarium Jany Renz and their Website

Full sun Cold Spring

Common Name Welwitsch's Disa [Austrian Botanist in Angola 1800's]

Flower Size .6" [1.5 cm]

Found in Guinea, Ivory Coast, Liberia, Nigeria, Sierra Leone, Burundi, Cenral African Republic, Cameroon, Congo, Gabon, Zaire, Uganda, Kenya, Tanzania, Angola, Malawi, Mozambique, Zambia, Zimbabwe and Transvaal South Africa in damp areas in full sun at elevations of 600 to 1000 meters as a small to medium sized, cold growing terrestrial that blooms in the spring on an erect, terminal, to 8 to 20" [to 20 to 50 cm] long, many imbricate flowered inflorescence.

Similar to D roeperocharoides but this one has smaller flowers and a different petal shape

Synonyms Disa breyeri Schltr.1924; Disa calophylla Kraenzl. 1902; Disa hyacinthina Kraenzl. 1912; Disa ignea Kraenzl. 1902; Disa occultans Schltr. 1922; Disa subaequalis Summerh. 1936; Disa tanganyikensis Summerh. 1964; Disa welwitschii subsp. occultans (Schltr.) H.P.Linder 1981; Disa welwitschii var. buchneri Schltr. 1901; Disa welwitschii var. occultans (Schltr.) Geerinck 1982

References W3 Tropicos, Kew Monocot list , IPNI ; Orchids of East Africa Piers 1968; The Orchids of South Central Africa Williamson 1977 drawing/photo hmm; Wild Orchids of Southern Africa Stewart, Linder, Schelpe & Hall 1982; Terrestrial African Orchids, A select Review John S. Ball 2009 drawing fide

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