Habenaria uncicalcar Summerh.

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Photo: Nicholas Wightman
Semu area, by Chimfunsi Nature Reserve, Chingola Distr., Copperbelt Province

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Description:	Slender terrestrial herb 25–66 cm high; tubers globose to ellipsoid, up to 3 cm long, hairy. Leaves 8–10, along the stem, lowermost 3–4 sheath-like, upper ones grading into bracts, lanceolate, 3.5–8.5 cm long. Inflorescence fairly laxly up to c. 20-flowered; bracts usually shorter than the flowers. Flowers green. Dorsal ovate, sepal 6.5–11 mm long, erect, convex; lateral sepals obliquely lanceolate, 8–12 mm long, deflexed. Petals 2-lobed; posterior upper lobe linear, 6.5–10.6 mm long, erect, adnate to dorsal sepal; lower lobe long, narrowly linear, 7.5–15.5 mm long, deflexed then curving up. Lip 3-lobed; mid-lobe linear, 6.5–12 mm long, deflexed; side lobes usually shorter and narrower than mid-lobe; spur 8–11 mm long, basal half parallel to ovary, then abruptly bent up so that the apex is held above the flower,inflated at the apex.
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Flowering time:	Jan - Mar
Worldwide distribution:	DRC, Tanzania, Malawi, Zambia and Zimbabwe.
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Literature:	Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 328. Fibeck, W. & Dare, M. (1993). Terrestrial Orchids in Zimbabwe. Excelsa 16 Page 66. Grosvenor, R.K. (1976). A list of orchids indigenous in Rhodesia. Excelsa 6 Page 83. La Croix, I. & Cribb, P.J. (1995). Orchidaceae (Part 1) Flora Zambesiaca 11(1) Pages 87 - 88. La Croix, I. et al. (1991). Orchids of Malawi A.A. Balkema, Rotterdam Page 67. (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 96. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 122. Summerhayes, V.S. (1962). African orchids XXVIII Kew Bulletin 16(2) Pages 270 - 273. Protologue (Includes a picture). Williamson, G. (1977). The Orchids of South Central Africa J.M. Dent & Sons Ltd., London. Pages 47 - 49. (Includes a picture).

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Flora of Malawi: Habenaria uncicalcar
Flora of Zambia: Habenaria uncicalcar
Flora of Zimbabwe: Habenaria uncicalcar

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