Slender annual herb, 4–13 cm high. Leaves flat and tread-like, 2.0–5.5 cm long, shorter than to almost as long as infructescence. Scape at fruiting erect or ascending, 1.5–5.0 cm long, infructescence 1.0–6.5 cm long, with 6–54 fruits. Fruits narrowly cylindric, slightly expanded at base, 3.2–5.8 mm long, 0.4–0.5 mm wide just above base; sessile or subsessile, 0.1–1.2 mm long; carpels 6, 3 fertile alternating with 3 underdeveloped sterile ones; fertile carpels ± flat when dry, at base with 2 minute downward incurved points to 0.1 mm long that do not extend beyond the carpel outline. Fruits Sep.–Oct.(–Dec.).
MuM. Also WA, SA. Occurs in damp sand loam and clay, often in saline soils near the edges of salt lakes and claypans.
This species closely resembles T. minutissima and T. nana. From the former it may be distinguished by the longer fruits, and the latter by the more slender, non-spurred fruits.
