Stylidium calcaratumCommon name: Book Triggerplant
Distribution: Occurs from Murchison to Esperance.
Description: An ephemeral herb with a flowering stem to 20 centimetres tall. The white or pink flowers are produced from September to November.
References: Western Australian Plant Names and their Meanings, a Glossary. FA Sharp. 1996.
Flora of the Perth Region. NG Marchant, JR Wheeler, BL Rye, EM Bennett, NS Lander, TD Macfarlane. 1987.