Dense Peristylus as a small to medium sized, hot to
cool growing terrestrial orchid with sub-globose to oblong-ovoid
tubers. It gives rise to an erect stem with 2-3, tubular, basal sheaths
and carrying 4-6, widely spaced, ovate, oblong to oblong-lanceolate,
pointed to long-pointed leaves. The plant blooms in the summer on an
erect, cylindric to slightly ridged, slender to stout, 11-38 cm long
inflorescence which is laxly to somewhat densely many flowered. The
inflorescence has several sterile bracts and ovate-lanceolate,
long-pointed floral bracts. Dense Peristylus is found in E. Himalayas,
Western Ghats and SE Asia, in seasonal evergreen and pine forests and
moist grasslands at elevations of 300-2100 m. Flowering: May-October.