What are the characteristics of the Stylidium? A detailed guide

Morphological characteristics of Stylidium

A small annual herb, 5-13 cm tall. The leaves are all basal, with very short petioles, ovate-rounded, ovate to obovate, 5-8 mm long, with a rounded or blunt apex, entire, hairless, and with inconspicuous veins. There are 1-3 stems, leafless, unbranched, or bifurcately branched, with sparse short glandular hairs on the upper part. The inflorescence is a long, lax spike. The flowers are small, sessile; the bracts are ovate, less than 1 mm long; the calyx tube (ovary) is narrow and elongated, sparsely covered with glandular hairs, the lobes are small, the front 2 are fused into a lobe that is shallowly 2-lobed at the apex, 1.8 mm long, the remaining 3 are linear, 1.2 mm long; the corolla is white, about 2 mm long, the tube is short, the front lobe is very small, ovate, reflexed into a lip, the other 4 spread backward, the rearmost 2 are longer, 2-lobed at the apex, with appendages at the base; the column is 3.5 mm long, exserted; the ovary is 2-locular. The capsule is 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 wet grasslands by streams in hilly areas.