To 30cm tall, leaf to 15 cm long. Stem with: 1-4 flowers.
Pale green except for the variable red barred labellum. Labellum with two rows of white or yellow topped calli; midlobe marginal calli numerous, some hooked. Petals and sepals acute.
Lowland to subalpine scrub, well lit native or pine forest.
Common in suitable habitat.
Lacks hairs on the dorsal sepal of others in the group. A very variable species; mutant plants with petaloid labella have been described as Caladenia saccata and C. calyciformis. Red stemmed plants seem to be a distinct species.
Pale greenish-white flowers with long lateral calli on the midlobe.