What kind of growing environment suits Stylidium?

Morphological characteristics of Stylidium

A small annual herb, 5-13 cm tall. Leaves all basal, with a very short stalk, ovate-round, ovate to obovate, 5-8 mm long, apex rounded-obtuse or rounded, entire, hairless, veins inconspicuous. Stems 1-3, leafless, unbranched, or bifurcately branched, sparsely covered with short glandular hairs on the upper part. The inflorescence is a long, lax spicate inflorescence. Flowers small, sessile; bracts ovate, less than 1 mm long; calyx tube (ovary) narrow and long, sparsely covered with glandular hairs, lobes small, the front 2 united into one lobe shallowly 2-lobed at the apex, 1.8 mm long, the remaining 3 linear, 1.2 mm long; corolla white, about 2 mm long, tube short, the front lobe very small, ovate, reflexed into a lip, the other 4 spreading backward, the posterior 2 longer, apex 2-lobed, with appendages at the base; column 3.5 mm long, exserted; ovary 2-locular. Capsule slender-cylindrical, about 8 mm long.

Distribution of Stylidium

Produced along the coast of Guangdong. Also found in Sri Lanka and Queensland in northeastern Australia. It grows in moist grassland beside streams in hilly areas.