About Caladenia clavigera A.Cunn. ex Lindl.
Caladenia clavigera A.Cunn. ex Lindl. is a terrestrial, perennial, deciduous herb with a spherical underground tuber. It grows as scattered individual plants or in small colonies. This species produces a single linear to lance-shaped leaf, between 5 and 20 cm (2 to 8 in) long and 5 to 12 mm (0.2 to 0.5 in) wide, that is sparsely hairy on both surfaces. One, or sometimes two flowers grow on a green to brown, hairy spike that stands 15 to 40 cm (6 to 20 in) high. The flowers are around 40 mm (2 in) in diameter, with lateral sepals and petals that measure 25 to 35 mm (0.98 to 1.4 in) long. The floral structures are yellowish-green with a central red stripe, and taper to a thread-like tip. The tips of the sepals usually bear black, glandular, club-like tips, but these structures are not present on the petals. The sepals and petals either spread widely or droop, while the dorsal sepal is erect and curves forward to form a hood over the labellum. The labellum is shaped from egg-like to heart-like, between 10 and 14 mm (0.4 to 0.6 in) long and 8 to 10 mm (0.3 to 0.4 in) wide. It is whitish to greenish with a dark red central portion, and curves forward. Teeth are mostly absent from the sides of the labellum, but there are four to six rows of golf club-shaped calli near its central region. Flowering occurs between August and January. This caladenia grows in forest and heath habitats. Its distribution spans New South Wales south of Wellington, most areas of Victoria (mostly south of the ranges), and the far south-east of South Australia.
