Habit: terrestrial herbs

Rhizome: with tufted roots

Stem: sheathing below middle

Leaf: characteristics: plicate or plicate-venous, sessile or subsessile

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal

Floral bract: leaflike

Flower: other characteristics: actinomorphic

Sepal: free or similar

Anther: 2-loculed

Stigma: concave

Rostellum: absent

Pollinia: number: 4

Staminode: 5

Pollinia: other characteristics: granular-farinaceous, without appendage

Fruit:type: capsule