Amsinckia calycina

Erect herb, 15–50 cm high; stems strigose and with short fine hairs. Leaves stiffly hairy, apex acute or obtuse, base cuneate to subcordate, margins undulate; rosette leaves linear-oblanceolate to linear-lanceolate, 2.5–10 cm long, 2–25 mm wide; cauline leaves linear-lanceolate, becoming smaller towards inflorescence. Sepals linear-lanceolate, 3–5 mm long, acute, scarcely connate at base, elongating to 5–7 mm in fruit; corolla 5–8 mm long, throat open and glabrous, pale yellow, tube much longer than lobes; stamens inserted in corolla throat. Mericarps ovoid, 2–2.5 mm long, not or only weakly transversely wrinkled, dorsal ridge covered with pointed tubercles, other surfaces covered with small rounded tubercles. Flowers Sep.–Dec.