''Stylidium calcaratum'', the book triggerplant, is a dicotyledonous plant that belongs to the genus ''Stylidium''. It is an ephemeral annual that grows from 5 to 10 cm tall but can grow larger at 20–30 cm tall in damp forest or scrub habitat.
Similar species: Asterales
By Ernst
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Uploaded Oct 1, 2021. Captured Sep 27, 2021 11:33 in Cox Scrub Conservation Park, Bull Creek Rd, Ashbourne SA 5157, Australia.
