Thelesperma filifolium (Hook.) A.Gray

Annuals (sometimes persisting), 10–40(–70+) cm. Cauline leaves crowded to ± scattered over proximal 1/2–3/4 of plant heights, inter­nodes mostly 10–35(–50+) mm; lobes mostly linear to filiform, sometimes oblanceolate, 5–30(–55+) × 0.5–1(–3+) mm. Calyculi of 7–8+ linear to narrowly triangular bractlets (2–)4–8+ mm. Ray florets 8; laminae yellow to golden yellow (sometimes proximally suffused with red-brown), 12–20+ mm. Disc corollas red-brown or yellow with red-brown nerves, throats shorter than lobes. Cypselae 3.5–4+ mm; pappi 0.5–1(–2+) mm. 2n = 16, 18.

Calcareous barrens and plains. Dry soils.

The leaves and flowers are used as a substitute for tea.

Can be grown by seedlings.