African Plant Database


Disa ochrostachya Rchb. f.
Family : ORCHIDACEAE
Protologue : Flora 48: 181 (1865)
Information on the genus : Disa
 
 
Status
Status for TA : accepted (present)
 
Synonym(s) Homotypic
 Disa ochrostachya Rchb. f. var. ochrostachya
 
Synonym(s) Heterotypic
=Disa adolphi-fridericii Kraenzl.
=Disa aurantiaca Rchb. f. (1867)
 
Taxon infra-specific
Disa ochrostachya Rchb. f. var. ochrostachya
 
Ecology and distribution
Trop. Afr.
Biology : Terrestrial herb 30-100-120 cm tall; tubers ellipsoid, 2-6x1,5-3 cm; sterile stem to 17 cm tall, with 2-3 erect narrowly elliptic acute leaves 10-20x0,6-1,8 cm; flowering stem covered by broad overlapping leaf sheaths with red markings, the largest 5-10x1-4 cm; inflorescence 13-20-40 cm long, cylindrical, 1,5-3 cm Ø, densely 50-200-flowered; flowers yellow to orange with darker markings, c. 10 mm Ø; bracts narrowly lanceolate, acute, 15-30 mm long; pedicel and ovary 10-15 mm long; dorsal sepal erect, broadly ovate, 5-10x4-8 mm, hood-like, with spur near middle, pendent, 7-12 mm long with narrow mouth and club-like apex; lateral sepals obliquely elliptical, 6-10x3-6 mm; petals erect, obovate, narrowed towards base, 4-8x3-6 mm, 2-lobed, posterior lobe obtuse tongue-like, much larger than the narrow anterior lobe; lip linear, pendent, 4-10x0,5-2 mm.
Ecology : Grassland; wooded or grassy savanna; grassy glades in open woodland or forest; in “Loudetia-Smithia-Protea uhelensis community”; sometimes bogs; 1450-2650 m alt.
  The tubers are used for chikanda (See above under D. erubescens).

Bibliography for Tropical Africa :
  • Darbyshire, I. Kordofami, M. & al. (2015). The plants of Sudan and south Sudan, An annoted checklist. Kew Publishing
 
More info on :
see under Jstor_African Plant Initiative
see under chg
see under Flore d'Afrique Centrale
see under The International Plant Name Index
see under Orchidées d'Afrique Centrale
see under Flora of Zimbabwe
see under African Plants - a Photo Guide
 
Map
carte afrique num 175873
 
Record n°175873
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