Disa hircicornis Rchb.F.

Species

Angiosperms > Asparagales > Orchidaceae > Disa

Characteristics

Plants slender to robust, 300-600 mm tall; sterile shoots slender, up to 100 mm long, basal sheaths 2-3, white below, densely spotted and barred red or brown above, leaves usually 2, short-petioled, conduplicate, often more or less mottled red; fertile shoots: cauline leaves mottled and barred red basally, imbricate, basal sheaths 2-3. Inflorescences dense, 20-70-flowered; bracts generally as tall as or overtopping the flowers, apices usually reflexed. Flowers facing down at 45°, usually deep dusty purple, or other shades of purple-red. Median sepal elliptic, galea 5-7.5 x 4-6 x 1.5-2 mm deep, margins rarely incurved; spur conical basally, tapering to slender cylindrical, soon sharply decurved, 8-13 mm long; lateral sepals patent or deflexed, oblong, keeled, 5-7.5 x 2.5-5 mm, apiculi more or less developed. Petals erect, obovate-oblong, truncate, oblique, acute, 4-6 x 1.5-2 mm. Lip pendent, linear to narrowly elliptic, 4-5.5 x 0.5-1.3 mm. Anther 1.5-2 mm long; stigma stipitate; lateral rostellum lobes parallel.
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An orchid that grows in the soil. It grows 85 cm high. It has small fleshy tubers. These are 1.5 cm long by 0.8 cm wide. There are often 2 leaves on non flowering shoots and these are narrow and 30 cm long. They are folded along their length. The leaves on the flowering shoots are sword shaped and 5-20 cm long. They are red at the base. The flowering stalk is 18 cm long. The flowers are pink, brown, red or purple.
Terrestrial herb, up to 0.6 m high. Petals obovate-oblong, truncate. Sepals 5.0-7.5 mm long, dorsal sepal galeate with a hooked spur. Lip linear to narrowly elliptic. Flowers purple.
Spur slender, 8–13 mm long, cylindric from a conical base, horizontal at the base but soon sharply deflexed (apparently ascending at base because galea faces down).
Fertile shoots 30–60 cm tall; cauline leaves imbricate, mostly sheathing and mottled or barred red at the bases, 5–20 cm long, lanceolate, acute.
Sterile shoots usually 2-leaved; leaves shortly petioled, semi-erect, conduplicate, to 30 cm long, narrowly elliptic to linear, acute.
Dorsal sepal galeate; galea 5–7.5 mm long, 4–6 mm wide and 1.5–2 mm deep, elliptic, rarely ovate to obovate, acute to obtuse.
Floral bracts as tall as or taller than the flowers, lanceolate, acuminate, the apices usually reflexed.
Petals erect, 4–5.5 mm long, narrowly obovate-oblong, truncate, oblique, rarely obovate, acute.
Terrestrial herb with separate fertile and sterile shoots; perennating by testicular tubers.
Flowers facing down at an angle of 45°, deep dusty-purple or other shades of purple-red.
Lateral sepals 7.5 mm long, oblong, rarely ovate, acute.
Lip 4–5.5 mm long, linear to narrowly elliptic, pendent.
Inflorescence dense, 6–20 cm long, 20–70-flowered.
Rostellum 1.5–2 mm tall, lateral lobes parallel.
Anther 1.5–2 mm long.
Ovary c. 1 cm long.
Stigma stipitate.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.6
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Flower color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant. It grows in damp grassy places. It usually grows between 1,500-1,800 m above sea level but can be up to 2,700 m.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses food
Edible roots tubers
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
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Productivity -

Distribution

Disa hircicornis world distribution map, present in Angola, Burkina Faso, Ethiopia, Kenya, Mozambique, Nigeria, Rwanda, Sudan, Tanzania, United Republic of, Uganda, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:630138-1
WFO ID wfo-0000944408
COL ID 36RZ7
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Disa amblyopetala Disa culveri Disa hircicornis Disa laeta