Disa miniata Summerh.

Species

Angiosperms > Asparagales > Orchidaceae > Disa

Characteristics

A terrestrial herb 3–4.5 dm. high, glabrous except for the roots.. Tubers ellipsoid, ± 1.5 cm. long and 5 mm. in diameter, glabrous or ± tomentose.. Roots slender, flexuous, sparsely pubescent.. Sterile stems short, with a few overlapping sheaths at the base and 2 or 3 leaves at the apex; leaves narrowly lanceolate, acute, 8–10 cm. long, 1–1.5 cm. broad.. Flowering stems slender or rather slender, almost covered by the sheathing leaves; leaves 9–12, adpressed to the stem, the lowermost 1–2 sheath-like, spotted or marked with red, the remainder lanceolate, acute, the largest 4–7.5 cm. long and 5–12 mm. broad.. Inflorescence 3.5–10 cm. long, 2–2.5 cm. in diameter, not very densely 6–20-flowered.. Bracts leafy, lanceolate, acuminate, 1.5-2.7 cm. long, green or tinged red, mostly overtopping the flowers.. Flowers suberect, orange or vermilion; pedicel with ovary straight, 1–1.5 cm. long.. Dorsal sepal erect, ovate-elliptical, subacute, spurred at or above the middle, ± 6 mm. long and 3.5 mm. broad, the spur pendent, club-shaped from a narrow base, obtuse, ± 4 mm. long and 2 mm. in diameter; laterals spreading, ovate-elliptical, obtuse, 6–7 mm. long, ± 4.5 mm. broad.. Petals erect, broadly obovate in general shape, 2-lobed near the apex, altogether 4–5.5 mm. long, nearly 4 mm. broad; front lobe broad, rounded, much larger and longer than the small oblong or lanceolate-oblong back lobe which is 1.5–2 mm. long and 1 mm. broad.. Lip pendent, linear, ± 5 mm. long and scarcely 1 mm. broad.. Anther erect, shortly stalked, just over 3 mm. high.. Stigma nearly orbicular, ± 2 mm. in diameter.
More
An orchid. It is a herb that grows in the soil. It grows 30-45 cm tall. The leafy shoots are 70 cm long and have 2-3 leaves 30 cm long by 1 cm wide. The flowering shoots are 4-16 cm long with 5-40 flowers in a dense group. The flowers are orange. The tubers are narrowly oval and 1.5 cm long by 0.5 cm wide.
Spur pendent from above the middle of the galea, reaching to the base of the dorsal sepal 3.5–4.2 mm long, strongly clavate, to 2 mm in diameter at apex.
Fertile shoots 30–60 cm tall; cauline leaves imbricate or subimbricate, 4–8 cm long, lanceolate, acute, closely sheathing; basal leaves somewhat smaller.
Petals 2-lobed; anterior lobe 3.5–5 mm tall and 3–4 mm wide, the upper margins incurved; posterior lobe 3–4.5 mm tall and 0.5–0.7 mm wide.
Dorsal sepal 4.5–6.6 × 2.5–3.6 mm, ovate-elliptic, subacute, erect or slightly curved forwards, galea c. 1.5 mm deep.
Sterile shoot up to 70 cm tall; leaves 2–3, conduplicate, to 30 × 1 cm, oblanceolate-linear, acute.
Floral bracts 2–3 cm long, narrowly ovate, acute to acuminate, overtopping the flowers.
Lateral sepals 5.5–6.6 mm long, ovate, subacute, spreading sideways or upwards.
Inflorescence subdense to dense, 4–16 cm long, 5–40-flowered.
Terrestrial herb with separate sterile and fertile shoots.
Anther erect, with a massive connective.
Stigma massive, to 3 mm in diameter.
Lip pendent, 4–6 mm long, linear.
Rostellum less than 1 mm tall.
Flowers more or less orange.
Ovary 1–2 cm long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.45
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Distribution

Disa miniata world distribution map, present in Mozambique, Tanzania, United Republic of, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:630178-1
WFO ID wfo-0000944459
COL ID 36RZV
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Disa miniata