Caladenia R.Br.

Flowers not blue Caladenia
Sepals finely acuminate, often produced into long tails, sometimes club-shaped at the tip. Petals similar but usually narrower and shorter, not club-shaped at the tip. Sepals and petals more than twice as long as the labellum. Spider Orchids
Sepals and petals acute, c. as long as or less than twice as long as the labellum