African Plant Database

Disa stairsii Kraenzl.
Protologue : Gard. Chron., ser. 3 2: 728 (1892)
Information on the genus : Disa
Status for TA : accepted (present)
Synonym(s) Heterotypic
=Disa gregoriana Rendle (1895)
=Disa bakeri Rolfe (1907)
=Disa luxurians Kraenzl. (1900)
=Disa wissmannii Kraenzl. (1897)
Ecology and distribution
Trop. Afr.
Biology : Terrestrial, rarely epiphytic herb 15-90 cm tall; tubers absent; stem leafy throughout; leaves 11-15, those at base forming a tuft, narrowly lanceolate, 5-45x1-3 cm, tips reddish; inflorescence cylindrical, 6-32 cm long, 3-6 cm Ø, 10-100-flowered; flowers pink to wine-red or purple, c. 20-25 mm Ø; bracts 20-60 mm long, overtopping flowers; pedicel and ovary 15-25 mm long; dorsal sepal hood-like, 8-12x10-15 (when spread out) mm, hood 5-8 mm deep, with slender spur 15-20 mm long, pendent, nearly at base; lateral sepals oblong, rounded, 7-12x5-7,5 mm, margins incurved; petals entire, erect inside hood, obliquely oblong, 5-7,5x2-3 mm, curved; lip ligulate, 8-10x2-3 mm, pendulous.
Ecology : Hagenia forest glades; at upper limit of bamboo or Hagenia zones; bamboo and ericoid vegetation; (grassy) swamps; moor among Philippia, etc.; rocky and stony areas among Alchemilla, etc.; ericaceous shrub on quartzitic rocks; Hagenia-Hypericum forest; Dendrosenecio-Paramo and moorland; epiphytic in moss-cushions, on Hagenia abyssinica; 2100-3750 m alt.
  Disa stairsii sensu Geerinck in Bull. Soc. Roy. Bot. Belg. 107: 89, 1974, quoad specim. Deuse 1373 = D. eminii. Fischer & al. (2010: 187) note that the record from Nyungwe Natl. Park, Rwanda (Geerinck 1984) represents D. eminii.
  • Kipkoech S. & al. (2020). An annotated checklist of the vascular plants of Aberdare Ranges Forest, a part of Eastern Afromontane Biodiversity Hotspot PhytoKeys 149: 23
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    Record n°43399
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