General: Pseudostem leafy

Rhizome: tuberous, branched

Leaf: Position: Distichous

Leaf: shape: oblong, lanceolate, linear

Petiole: swollen, cushionlike

Bracts or bracteoles: 1-flowered or 2-flowered, bracteoles not tubular

Inflorescence: conical,arising from rhizomes on peduncle clothed with scalelike sheaths, breaking through leaf sheaths

Calyx: tubular, apex 3-lobed or 3-toothed, split on 1 side

Corolla lobes: central lobe longer and wider than lateral lobes

Labellum: apex lobed or cleft or concave or emarginate

Stamens or staminodes: lateral staminodes adnate to labellum and forming a 3-lobed labellum

Filament: short or absent

Connective: appendage wrapped around style

Ovary: 3-loculed, placentation axile, ovules many per locule

Style: extending beyond anther locules

Fruit: dehiscent

Seed: arillate, aril lacerate