Disa racemosa L.F.

Species

Angiosperms > Asparagales > Orchidaceae > Disa

Characteristics

Plants slender, erect, to 1 m tall; radical leaves 3-10, subconduplicate, narrowly lanceolate, up to 100 (-200) mm long, cauline leaves lax, narrowly lanceolate, completely sheathing or grading into the radical leaves and the floral bracts. Infloresªcences lax, 2-8 (-12)-flowered; bracts about as long as and enclosing the ovaries. Flowers resupiªnate, pink or very pale pink, veins darker, petals and lip white to yellow, petals with horizontal purple bars. Median sepal erect, obtuse, galea dish-shaped, 17-24 x 13-20 x 5-8 mm deep; spur subobsolete, laterally flattened, rounded; lateral sepals patent, oblong to broadly elliptic, obtuse, flat, 15-25 mm long, apiculi c. 1 mm long. Petals flanking the anther, apex curved over it, obliquely narrowly obovate rhomboid, broadly fused basally to rostellum, 10-15 mm long. Lip patent, linear, c. 10 mm long. Anther horizontal; stigma sessile, equally tripulvinate; lateral rostellum lobes canaªliculate, central lobe reflexed.
More
Terrestrial herb, robust, geophyte, 0.3-1.0 m high; root tubers present. Leaves radical, narrowly lanceolate, grading into cauline leaves. Inflorescence a lax spike. Flowers 2-8, resupinate, pink with paler petals with horizontal purple bars. Sepals: median sepal dish-shaped; lateral sepals 15-25 mm long; spur obsolete. Petals reflexed parallel to anther, obliquely narrowly oblong, apex acute curved over anther. Lip patent, linear, ± 10 mm long. Flowering time Nov., Dec.
Slender, tuberous geophyte to 1 m. Leaves basal, narrowly lanceolate. Flowers few in a lax raceme, pale pink with darker veins, median sepal dish-shaped, lateral sepals oblong, 15-25 mm long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.65 - 1.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 7-9
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

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

Images

Disa racemosa unspecified picture

Distribution

Disa racemosa world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:630229-1
WFO ID wfo-0000944531
COL ID 36S32
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Satyrium secundum Disa racemosa Disa secunda