Plants 48-53 cm tall. Rhizome 4-6 mm in diam., densely noded; roots long, 1.5-2 mm in diam. Stem glabrous; proximal internodes 7-12 mm, each node with 1 tubular sheath 4-18 mm; distal internodes much longer. Inflorescence with 10-13 well-spaced flowers; rachis 18-22 cm; floral bracts reflexed, linear-lanceolate, ca. 1 cm, 3-veined. Flowers white, suberect; pedicel 3-5 mm; ovary 1.2-1.7 cm, with sparse glandular hairs. Sepals sublanceolate-oblong, ca. 10 × 2-3 mm, apex subacute; lateral petals similar, suboblong, slightly shorter than sepals, thinly textured; lip unmodified, similar to lateral petals. Column ca. 8 mm, apex slightly dilated, with 2 silver staminodes and linear appendage on ventral surface near apex; appendage 0.7-1 mm; stigma subterminal; rostellum ovate, apex emarginate. Fl. Aug.
Home