Orchidaceae

Neither stamens nor staminodes broad and petaloid Orchidaceae

Plants terrestrial with tubers or rhizomes. Leaves basal and/or cauline, large or scale-like

Autotrophs with green leaves and stems; stems sometimes coloured. Leaves sometimes absent at flowering time

Leaves 1 or none or leaves absent at flowering time. Stem-bracts present or absent

Leaves hairy. Labellum without hairs, or with calli

Labellum sitting at ± right angle to the column. Labellum sessile, with calli at the base only Glossodia

Labellum standing erect against the column, shortly clawed, with calli along the lamina