pulvinate

Herbs perennial, sometimes pulvinate, with well-developed, thick caudex covered with petioles of previous years.

Shrublets pulvinate, usually thorny; leaves alternate, crowded, linear, sometimes spinescent, persisting when withered.

Disk within androecium, nectariferous, columnar to barrel-shaped or pulvinate to cup-shaped.

rudimentary ovary pulvinate, depressed at center.

Disk annular, pulvinate, columnar, conic, or bell-shaped.

Stems densely pulvinate, erect, 4--10 cm, white glandular hairy distally, with dense, brown, withered, persistent leaves at base.

Stems densely clustered, pulvinate, 5--8 cm, glandular villous, with crowded, withered, persistent leaves at woody base.

Disk annular, pulvinate, or columnar.

Disk fleshy, pulvinate or cupular, entire or lobed, extrastaminal.

Stems pulvinate or caespitose.

Stems clustered, pulvinate, 3--4 cm, with crowded, withered, persistent leaves at woody base.

Disk pulvinate to annular to cup-shaped.

Stems pulvinate, 3--6 cm, with crowded, withered, persistent leaves at base and distally.

Herbs perennial. Stems densely pulvinate, 4--9 cm, densely glandular hairy.

Stems pulvinate, many branched, 20--30 cm, slightly woody, glabrous.

Stems densely clustered, pulvinate, 6--10 cm, villous distally.

Stems pulvinate, densely branched, 4--8 cm, glabrous.

disk pulvinate or saucer-shaped, to 2 mm in diam.

Shrublets, loosely pulvinate, cushions 10--15 wide or sometimes more.

Herbs perennial. Stems densely pulvinate, densely branched, 4--5 cm. Leaves congested, imbricate;

Stems pulvinate, 5--8 cm, with numerous withered, persistent leaves at base;