Satyrium carsonii Rolfe

Species

Angiosperms > Asparagales > Orchidaceae > Satyrium

Characteristics

A terrestrial herb 2.5–6.5 dm. high, glabrous except for the roots.. Tubers ovoid or narrowly ellipsoid, 1–3 cm. long, ± 1 cm. in diameter, tomentose.. Roots flexuous, slender, pubescent.. Stem erect, terete, with 2 basal leaves and several distant sheaths.. Two basal leaves subopposite, broadly ovate to reniform, adpressed to the ground, 1.5–6 cm. long, 1–9.5 cm. broad; sheathing leaves 3–5, scattered along the stem, lanceolate, 2–6.5 cm. long, 1–2 cm. broad.. Inflorescence rather dense, 4–15 cm. long, 3–5 cm. in diameter, 3–18-flowered; bracts at first erect, later reflexed, lanceolate, 1.5–3 cm. long.. Flowers spreading, white; pedicel with ovary straight, ± 1 cm. long.. Sepals ± deflexed, united shortly at the base to the petals and lip; intermediate sepal oblanceolate or oblong, obtuse, 7.5–17 mm. long, 3–4 mm. broad; laterals obliquely oblanceolate, rounded at apex, 9.5–19 mm. long, 3–7 mm. broad.. Petals oblanceolate, rounded at apex, 8–15 mm. long, 2.5–5 mm. broad; all tepals several-nerved.. Lip erect, very convex and almost hooded, with a broad mouth and a projecting ± curved-back apex, 9–16.5 mm. long and ± as broad when spread out, 2-spurred at the base.. Spurs parallel to the ovary, ± curved, tapering from a broad base, 6–14 mm. long.. Column ± enclosed in the lip, bow-shaped towards the back, 4–7 mm. high, the stalk thick, curved; anther-loculi horizontal, within the bend of the column; stigma semi-orbicular, 2–3 mm. high and 3–4 mm. broad, rostellum side lobes short, triangular, the middle lobe much larger, projecting downwards with apical part hooked upwards, ovate, acute.
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An orchid. It is a herb that grows in soil. It grows 50 cm tall. The 2 leaves at the base of the stem are flat on the ground. They are 6 cm long by 10 cm wide. They are oval or kidney shaped. There are 4 leaves on the stem that are 2-6.5 cm long and sheath the stem. The flowering shoots are 4-16 cm long by 3-6 cm wide. There can be up to 20 flowers in a dense cluster. The flowers are white or pink and waxy. The tubers are 1-3 cm long.
Basal leaves 2, appressed to ground, the larger up to 6 × 10 cm, ovate, orbicular or reniform, glabrous, rather fleshy; stem with c. 4 sheathing leaves, 2–6.5 cm long.
Lip 9–16 mm long with 2–3 mm reflexed at apex, 11–14 mm wide when spread out, very convex, forming a hood with a prominent keel.
Median sepal 7–17 × 3–4 mm, oblong, obtuse; lateral sepals 9–20 × 4.5–7 mm, obliquely oblanceolate, obtuse.
Sepals and petals projecting or deflexed, joined shortly at base to each other and to the lip.
Spurs 8–10 mm long, tapering from a wide mouth to an acute apex, parallel to ovary.
Terrestrial herb 25–65 cm tall; tubers 1–3 cm long, ovoid or ellipsoid, tomentose.
Column 4–7 mm high, curved; stigma 2–3 × 3–4 mm; rostellum mid-lobe 1.5 × 1.5 mm.
Inflorescence 4–16 × 3–6 cm, fairly densely few-to c. 20-flowered.
Flowers scented, white, the tips of the spurs green.
Petals 7–14 × 2.5–5 mm, oblanceolate, rounded.
White or pink-tinged rather waxy flowers
A terrestrial herb up to 2 ft. high
Bracts up to 30 × 17 mm, reflexed.
Ovary c. 10 mm long, with 6 wings.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.25 - 0.61
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant.
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In grasslands.
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 -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Satyrium carsonii world distribution map, present in Burkina Faso, Kenya, Nigeria, Rwanda, Tanzania, United Republic of, Uganda, and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:656911-1
WFO ID wfo-0000304673
COL ID 6XQ8R
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Satyrium carsonii Satyrium nigericum Satyrium leucanthum