Erect, woody, densely entangled, greyish shrub, up to 0.4 m tall, with an underground rootstock and ± spinescent terminal branches. Leaves basally adpressed otherwise ascending, narrowly triangular, woolly above, margins inrolled. Flowerheads discoid, terminal 1 or in groups of up to 8; inner involucral bracts hyaline in upper part; florets white.
Dwarf shrub, up to 300 mm tall. Branchlets spinous. Leaves linear, up to 10 mm long, slightly recurved. Heads 6-7 mm long. Flowers with brownish involucral bracts, disc flowers yellow, sometimes tinged red.
Shrub, up to 400 mm high, compact, greyish. Stems erect, densely entangled, rigid, terminal branches frequently spinescent; spines 8-25 mm long. Leaves alternate sessile; blade narrowly triangular, up to 8 mm long, margins entire, inrolled, upper surface woolly. Heads discoid, terminal, solitary or in groups of up to 8, sessile, 4- or 5-flowered. Involucral bracts 20-25, imbricate; outer broadly ovate; inner linear, hyaline in upper part, tips aristate. Flowers: ray florets absent; disc florets bisexual, 5.0-5.5 mm long; white, mainly Sep.-May. Fruit with cypsela subterete, ± 1 mm long, papillose. Pappus of 25-32 bristles, free, caducous, ± 5 mm long, plumose in upper part.
Sandy soils often on limestone or sandstone outcrops.