Stenostelma capense Schltr.

Species

Angiosperms > Gentianales > Apocynaceae > Stenostelma

Characteristics

Plant 2-10 in. high, with 2 or more stems, or branching at the base; stems or branches with internodes 0.25-0.5 in. long, puberulous, with minute curved hairs; leaves very spreading, subsessile, or very shortly petiolate, 1-3 in. long, 0.3-2 lin. broad, linear, acute, thinly puberulous above, glabrous, or nearly so beneath; umbels 5-7 to a stem, racemose, pedunculate, 6-10-flowered; peduncles 5-10 lin. long, puberulous on one side; bracts 1-1.5 lin. long, lanceolate-subulate; pedicels 1-1.5 lin. long, puberulous; sepals 1.25-1.5 lin. long, 0.5-0.66 lin. broad, ovate-lanceolate, acute; corolla usually, but not always lobed nearly to the base; lobes erect, with recurving or revolute tips, 1.75-2.5 lin. long, scarcely 1 lin. broad, lanceolate, acute or subobtuse, concave in the lower part, somewhat thickened, and very minutely papillate-puberulous on the inner face of the recurved apical half, elsewhere quite glabrous; corona-lobes erect, 2-2.25 lin. long, subulate from a spathulate-subcordate base, which is 0.5 lin. broad, with the auricles inflexed and forming a minute tooth on each side of the inner face, which is transversely thickened into a ridge just above them; staminal column 1.25-1.3 lin. long, of which the anther-appendages occupy more than half, much exceeding the style, 0.3 lin. broad, ovate, acuminate, or lanceolate, acute, connivent-erect, white; anther-wings very prominent, angular at the middle; caudicles terminal at the tapering apex of the pollen-masses; style-apex 0.3 lin. long, conical, minutely 2-lobed.
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Perennial, geophytic herb, 150-250 mm high; stems basally branched and uniseriately hairy or glabrous. Leaves longer than internodes, blade 10-40 x 2-5 mm, midrib hairy. Inflorescence 8-12-flowered, ± globose; peduncles up to 10 mm long, erect, pubescent. Flowers: pedicels up to 3 mm long; corolla dorsally greenish, cream-greenish inside, lobes apically reddish, 3 x 2 mm, narrowly triangular, margins revolute, apex recurved, papillose; corona lobes white, up to 8 mm long, basally stalk-like, abruptly triangularly broadened, apically long-attenuate, reaching over conical style head. Pollinia curved inwards, translators broad. Flowering time Sept.-Apr., with peak in Jan., Feb. Fruit finely pubescent, 30-50 x 3-7 mm.
Perennial, geophytic herb, 150-250 mm high. Leaves with blade narrowly ovate. Flowers: inflorescence pedunculate; pedicels 3-6 mm long; corona with apical horn upright or bending outward, solid cylindrical throughout, side flanks markedly extended to form keels; corona lobes 5 mm long, dark purple with whitish margins; corolla cup-shaped, edge revolute, tips recurved, yellowish green outside, cream-coloured to pale pink inside; Sep.-Dec. Fruit a follicle.
A herb with a taproot. It grows 30 cm high. It can keep growing from year to year. The roots are long and spindle shaped. They are 30 cm long by 5 cm wide. The stems are usually branched. The leaves are narrow. They are 7 cm long by 5 mm wide. They are slightly hairy on the upper surface. The flowers are small and brownish-green. They are in groups on long flowering stalks.
Perennial herb, 150-250 mm tall. Inflorescence pedunculate; pedicels 3-6 mm long. Corona lobes 5 mm long. Flowers yellowish green; corona dark purple with whitish margins.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.25
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a subtropical plant. It grows in hot arid areas with a marked dry season. It can grow in places with a dry season of 6-11 months. In southern Africa it grows between 900-1,500 m altitude. It can grow in arid places.
More
Not known
Light -
Soil humidity 3-5
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The root tubers are roasted and eaten. They are baked in hot ashes.
Uses food
Edible roots tubers
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Stenostelma capense unspecified picture

Distribution

Stenostelma capense world distribution map, present in Botswana, Namibia, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:101902-1
WFO ID wfo-0001102980
COL ID 6ZMZK
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gomphocarpus stenoglossus Krebsia stenoglossa Stenostelma capense Schizoglossum aciculare Schizoglossum capense