Dendrobium exile Schltr.

Species

Angiosperms > Asparagales > Orchidaceae > Dendrobium

Characteristics

Stems erect, upper part branched, cylindric, to 50 cm, slender, ca. 3 mm in diam., 2 or 3 internodes above base dilated and fusiform; dilated portion of stems ca. 4.5 cm, ca. 8 mm in diam., fleshy, with 4 ribs, with pale white membranous sheaths when young, reddish brown and glossy when old. Leaves often alternate on upper part of branches, erect, terete, 2.5-6 × 1.5-2.5(or more) cm, base with leathery sheaths, apex acute. Inflorescence axillary on leafy older stems, 1-flowered, up to 4 flowers open at once per stem; floral bracts ovate, ca. 2 mm. Pedicel and ovary ca. 1 cm, slender. Flowers spreading, white, inner surface of lip lateral lobes with a few pale purple spots, disk yellow. Dorsal sepal sublanceolate, ca. 17 × 2.5 mm, 5-veined, long acuminate; lateral sepals similar to and ca. as large as dorsal sepal; mentum rigid, ca. 1 cm, acute. Petals similar to sepals, ca. 17 × 1.5 mm, 3-veined; lip cuneate at base, 3-lobed above middle; lateral lobes obliquely subovate-triangular, front margin undulate, apex obtuse; mid-lobe narrowly oblong, margin undulate, apex acute; disk sparsely villous, with 3 thick and stout keeled ridges from base to apex. Column ca. 2 mm, foot with a basal callus; anther cap conic. Capsule fusiform, ca. 4 × 0.6 cm.
Life form perennial
Growth form herb
Growth support epiphyte
Foliage retention evergreen
Sexuality hermaphrodite
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Environment

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Hardiness (USDA) 8-12

Usage

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Edible -
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Cultivation

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Distribution

Dendrobium exile world distribution map, present in China, Lao People's Democratic Republic, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:627394-1
WFO ID wfo-0000939117
COL ID 34MV9
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Aporum heterocaulon Ceraia exilis Dendrobium exile Dendrobium heterocaulon