ex Benth. (syn. H. alpestre). Usually 20-30cm high but sometimes to 45cm, small clump-forming. Leaves pinnate, 4-7cm long, pubescent, the larger leaflets often divided. Flowers to 1cm long, purple, lavender or white, in head-like cymes rather hidden by the leaves. H.c. var. thompsonii is more compact, having the cymes well above the foliage and H.c. var. alpinum is very dwarf, with flower clusters just above ground level. Eastern California to Utah, north to Canada, in sagebrush scrub and open pine forest at 1000-2400m, usually where the soil is moist. The most suitable species for the rock garden.