Stems erect, cylindric, usually 10-30 cm or longer, slender, 3-6 mm in diam., with many nodes, internodes 1.5-2.5 cm, golden yellow or yellow tinged with dark gray when dry. Leaves several, often alternate on stem above middle, lanceolate, oblong, or narrowly oblong, 3-5(-7) × 0.5-1.2(-1.5) cm, base decurrent into clasping sheaths, apex obtuse and slightly unequally bilobed. Inflorescences 1 to several, borne above middle of deciduous or leafy old stem, usually 1-3-flowered; peduncle 3-5 mm; floral bracts pale white, tinged with brown spots, ovate, 3-7(-8) × 2-3(or more) mm, dry, membranous, apex obtuse or acuminate. Pedicel and ovary white, 1-3 cm, slender. Flowers sometimes fragrant, yellowish green, creamy white, or white tinged with pale purplish red; lip white, pale yellowish green, or greenish white, spots tinged with pale brown or purplish red to pale yellow, often with a purplish red, pale brown, pale yellow, or yellowish green central spot near base of mid-lobe, column white, foot often with purplish red stripes at base, anther cap white or pale yellow. Sepals and petals similar, ovate-oblong, oblong-lanceolate, or ovate-lanceolate, (10-)13-40 × (1.5-)3-10 mm, 5-or 6-veined, apex acute, acuminate, or obtuse; lateral sepals oblique and adnate to column foot; mentum conic or subglobose, 4-15 × ca. 5 mm, obtuse. Petals subelliptic, (23-)25-40 × 10-15 mm, 5-or 6-veined, acute; lip ovate-lanceolate in outline, slightly shorter than sepal, base cuneate, distinctly or inconspicuously 3-lobed; lateral lobes subrounded, erect, embracing column, margin entire or irregularly toothed; mid-lobe ovate to ovate-lanceolate, glabrous, base often with an elliptic callus, margin entire, apex acute or slightly obtuse; disk densely pubescent between 2 lateral lobes. Column 3-4 mm, foot ca. 1.5 cm, glabrous or sometimes hairy; anther cap conic, sometimes densely finely papillate, apex unlobed.
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An orchid. It grows on trees. The stems are erect and 10-30 cm long. The leaves are alternate on the stem above the middle. They are oblong and 3-5 cm long by 1 cm wide. There can be one or more flowering stalks. They come from above the middle of old stems. Usually there are 1-3 flowers. The flowers can have a scent. They are yellowish green or pale yellow.
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