Stiff White Spiderorchid
Caladenia rigida
Family Orchidaceae
About
Caladenia rigida, commonly known as the stiff spider orchid, or white spider-orchid is a plant in the orchid family Orchidaceae and is endemic to South Australia. It is a ground orchid with a single hairy leaf and one or two white flowers with dark glandular tips on the sepals and fine reddish-brown lines along the sepals and petals.
How to spot it
Caladenia rigida is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy leaf 80–200 mm (3–8 in) long and 8–10 mm (0.3–0.4 in) wide. One or two white flowers with fine reddish-brown lines and 40–60 mm (1.6–2.4 in) across are borne on a spike 150–300 mm (6–10 in) tall. The sepals, but not the petals, have red, reddish-black or yellow-green glandular tips 8–12 mm (0.3–0.5 in) long. The dorsal sepal is erect near its base then gently curves forward and is 25–45 mm
Documented on these trails
Found in
- Para Wirra Conservation Park — Adelaide, the Hills & Fleurieu Peninsula hikes