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Stylidium perpusillum
A tiny annual in the triggerplant family, one of the smallest Stylidium species, growing only 1.5 to 4 cm tall with white flowers. It is a seasonal wildflower of winter-wet soils and is rarely grown, so care is mostly about keeping damp soil and full sun during its short life.
Stylidium perpusillum, the tiny triggerplant, is a dicotyledonous plant that belongs to the genus Stylidium (family Stylidiaceae), that occurs in south west Western Australia.
It is an ephemeral annual that grows from 1.5 to 4 cm tall. It bears white flowers with undivided posterior corolla petals that bloom from September to November in its native range. Its habitat has been reported as being sand to clay soils in winter-wet depressions near granitic rocks. S. perpusillum is a tropical species endemic to southwestern, Western Australia and is considered to be the smallest species in the genus Stylidium. Johannes Mildbraed, in his 1908 monograph on the family, described S. perpusillum as also being present in Victoria and Tasmania, but all other collections since have only been in Western Australia.
Grass Triggerplant · Stylidium inconspicuum · Stylidium javanicum · Stylidium laricifolium · Stylidium leeuwinense · Stylidium leptorrhizum · Stylidium lobuliflorum · Stylidium longicornu · Stylidium longissimum · Stylidium marradongense · Stylidium multiscapum · Stylidium muscicola
Text excerpted from the Wikipedia article Stylidium perpusillum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
