The genus Apostasia contains 8 primitive or basal terrestrial orchids, i.e. they are close to the common ancestor of all orchids.
They have up to 30 white or yellow flowers. The flowers of this genus are not upside down as in most orchids.
Apostasia has 2 fertile, abaxial stamens instead of 1 as in other orchids. A. nuda, A. elliptica and A. latifolia have no staminode (sterile stamen), the other species do. The presence of a staminode is a primitive characteristic.
Himalaya, India, Sri Lanka, New Guinea and northern Australia
They are terrestrial orchids that grow in moist conditions.
Apostasia: from the Latin apostasia, derived from the ancient Greek apostasia (defection, rebellion).
The genus Apostasia comprises 8 species:
- Apostasia elliptica
- Apostasia latifolia
- Apostasia nuda
- Apostasia odorata (type species)
- Apostasia parvula
- Apostasia ramifera
- Apostasia shenzhenica
- Apostasia wallichii