Plants of South Eastern New South Wales
Stylidium graminifolium
Common name
Grass triggerplant
Family
Stylidaceae
Where found
Forest, woodland, and heath. Widespread.
in the ACT, Stylidium graminifolium mainly occurs on Black Mountain, Bruce Ridge and Mt Ainslie. Stylidium armeria subsp. armeria is the common species of Stylidium at higher altitudes in the ACT.
Notes
Perennial herb to 0.8 m high, sometimes rhizomatous. Flower stalks more than 2 mm wide, hairy with glandular hairs increasing in density from the plant base to the top. Leaves grass-like, tufted at the base, 5–40 cm long, 1–3 mm wide, often glaucous, midvein clearly visible on the lower surface, margins finely toothed, thickened, sometimes curved down, tips with a stiff bristle. Flowers white to pink or mauve, 5-12 mm in diameter, tubular, with 4 petals, and a hinged column 6-8 mm long sensitive to movement, arising from the centre of the flower. Flowers 10–50 up the stems. Seed cases sticky hairy, covered in small warts. Flowers Aug.–Dec.
All native plants on unleased land in the ACT are protected.
The description in PlantNET was written before Stylidium armeria and Stylidium montanum were separated from Stylidium graminifolium (accessed 30 January 2021)
VICFLORA description: https://vicflora.rbg.vic.gov.au/flora/taxon/b3874d32-36d9-4f3b-a0c7-21e92e1e34a8 (accessed 30 January 2021)
Description avove partly based on: Raulings, EJ & Ladiges, PY (2001) Morphological variation and speciation in Stylidium graminifolium (Stylidaceae), description of S. montanum [1] [2] and reinstatement of S. armeria. Australian Systematic Botany 14(6): 925-926, Fig. 13
and Rosemary Purdie's notes published on Canberra Nature Map. https://canberra.naturemapr.org/Community/Sightings/Details/1947895 (accessed 30 January 2021)
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