Habenaria siamensis Schltr.

Species

Angiosperms > Asparagales > Orchidaceae > Habenaria

Characteristics

Plants 14-16 cm tall. Tubers oblong, 2-3 cm × 8-10 mm, fleshy. Stem erect, terete, 2-3 mm in diam., glabrous, often with 2 spreading basal leaves, with 3-5 bractlike leaves above. Leaf blade ovate or ovate-oblong, 4-4.5 × 2.5-3.5 cm, base amplexicaul-sheathing, apex acute or acuminate. Raceme several to more than 10-flowered, erect or arching, 4-6 cm; floral bracts lanceolate, ca. 13 mm, shorter than ovary, margin finely ciliate, apex acuminate; ovary twisted, slightly arching, cylindric, including pedicel to 15 mm, glabrous. Flowers white. Sepals 3-veined, margin finely ciliate; dorsal sepal forming a hood with petals, erect, ovate, concave, ca. 8 × 4 mm; lateral sepals reflexed, obliquely ovate-lanceolate, ca. 9 × 4 mm. Petals obliquely falcate-lanceolate, ca. 8 × 2.5 mm, 2-veined; lip spurred at base, deeply 3-lobed above base; lateral lobes linear-filiform, ± curved, 17-21 × ca. 0.5 mm, attenuate toward apex; mid-lobe straight, linear, 6-9 × 0.8-1.5 mm; spur pendulous, cylindric-clavate, 9-10 mm, conspicuously shorter than ovary, dilated from middle to end, near end ca. 2.2 mm in diam., apex obtuse; connective narrow, ca. 1 mm wide; rostellum short; stigmas oblong-clavate, ca. 4 mm. Fl. Aug.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.14 - 0.16
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
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 -

Distribution

Habenaria siamensis world distribution map, present in China and Thailand

Conservation status

Habenaria siamensis threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:638119-1
WFO ID wfo-0000978656
COL ID 3J4BR
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Habenaria siamensis