Perennial herb, 0.2-0.7 m high. Stems not winged. Leaves cauline, linear, l-2(-4) mm broad, flexible bristles only in lower half of leaf. Heads radiate. Flowers with white to yellow rays, disc yellow.
Folia linearia, 1-2 mm (rarius & summum ad 4 mm) lata, margine spinis setiformibus exceptis inermia vel ad summum paucis spinulis 0.5-1 mm longis obsita.