General: Pseudostem absent

Rhizome: tuberous

Leaf: shape: lanceolate, obovate, lanceolate-oblong

Leaf: other characteristics: arising directly from rhizomes

Petiole: present

Inflorescence: capitate, surrounded by a campanulate involucre

Calyx: tubular, apex 3-lobed or 3-toothed

Corolla lobes: 3

Labellum: apex lobed or cleft or concave or emarginate, with a central and yellow blotch

Stamens or staminodes: petaloid

Filament: short or absent

Ovary: 3-loculed

Style: stylodes short or absent

Seed: globose or subglobose