Habit: semi-epiphytic herbs, epiphytic herbs

Stem: branched, unbranched, with leaves, noded

Leaf: characteristics: sheathing or noding at base, margin recurved or apex lobed, base clasping

Leaf: position: distichous

Inflorescence: type: raceme, panicle

Inflorescence: position: laterally on stem

Inflorescence: other characteristics: branched

Flower: other characteristics: spreading

Sepal: lateral sepals spreading or oblique or reflexed or connivent

Labellum: 3-lobed, adnate to column

Column: without column foot

Pollinia: number: 4

Pollinia: other characteristics: with caudicle or viscidium, with stipe

Viscidium:shape: orbicular or suborbicular