Common name | - | Trigger plant |
Latin | - | Stylidium graminifolium |
Pruning | - | None |
Frost tolerance | - | Heavy |
Soil | - | Well drained |
Watering | - | Not required. Becomes dormant in dry periods |
Flowers | - | Spring and Summer |
Summer | - | Flowering |
Autumn | - | |
Winter | - | Becomes dormant and dies back |
Spring | - | Reshoots and begins flowering |
Fertilising | - | Slow release low phosphorous |
Tasmania has six native species of Stylidium. These are characterised by the trigger plant habit- where the flowers have the style and stamens fused together to form a column that springs across the flower when its bottom is tickled. Three species are perennial rosette plants with numerous leaves. These are the very widespread and common, S. graminifolium, which has leaves less than 3mm wide; S. dilatatum, which is common in dry places and has leaves more than 3mm wide; and S. armeria, which has thick, broad leave and short thick flowering stalks and grows on rocks in the salt spray zone of the west, south and far south-eastern coasts. The other three species are small ephemeral plants with few leaves. n.b. Stylidium inundatuam is probably not native to Tasmania (specimens previously identified as such were probably another of the ephemeral species).