Habenaria tonkinensis Seidenf.

Species

Angiosperms > Asparagales > Orchidaceae > Habenaria

Characteristics

Plants 24-40 cm tall. Tubers oblong, 3-4 × 1-1.5 cm, fleshy. Stem erect, terete, stout, glabrous, with 10-13 ± clustered leaves at base and 5-13 bractlike leaves above. Leaf blade linear to linear-lanceolate, 7-13 × 0.8-1.5 cm, base contracted, apex acuminate or acute. Raceme many flowered, 11-21 cm; floral bracts lanceolate to ovate-lanceolate, 13-17 mm, apex long acuminate; ovary twisted, cylindric-fusiform, including pedicel 13-15 mm. Flowers fragrant, white. Dorsal sepal forming a hood with petals, erect, elliptic, concave, ca. 5 × 3-3.5 mm, 3-veined, apex obtuse; lateral sepals reflexed, obliquely elliptic, ca. 6 × 2.5-3 mm, 3-veined, apex obtuse. Petals linear, slightly oblique, ca. 5 × 1 mm, 1-veined, apex acute; lip deeply 3-lobed from base; lobes linear, base ca. 0.5 mm wide; lateral lobes spreading nearly at right angles to mid-lobe, 10-11 mm; mid-lobe 7-8 mm, apex obtuse; spur pendulous, slightly curved, cylindric-clavate, ca. 17 mm, longer than ovary, thickened toward end; pollinia obovoid; caudicles slender; viscidia orbicular, small; stigmas clavate. Fl. Sep-Oct.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.24 - 0.4
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Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Hardiness (USDA) 8-12

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Optimum temperature (C°) -
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Distribution

Habenaria tonkinensis world distribution map, present in China, Lao People's Democratic Republic, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:638260-1
WFO ID wfo-0000978819
COL ID 6L99T
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Habenaria tonkinensis