Shrubs, evergreen, 10–40(–75) dm. Stems: young-stem internodes 5–14 mm, sparsely hirtellous or glabrous, usually stipitate-glandular; short-shoot spurs simple or branched, 10–20(–40) × 1.2–2.7 mm. Leaves: blade dark green adaxially, obovate, (3–)7–12(–19) × (2–)3–8(–13) mm, irregularly lobed in distal 1/2, lobes (3–)5(–7), proximal 2 lobes ascending, oblong to spatulate, ?narrow, 2–6 mm?, distal 3 lobes deflexed, reduced, margins strongly revolute, usually entire, rarely toothed proximally, ?apex rounded to truncate?, abaxial surface white-villous, midvein ?greenish?, glabrate, ?glandular-punctate?, adaxial sparsely hirtellous or arachnoid villous, soon glabrate, ± glandular-punctate. Pedicels 2.5–4.5 mm. Flowers: hypanthium obconic, 4–6.5 × 1.5–3 mm, 3–5 mm diam. in fruit, arachnoid-villous to pubescent, usually stipitate-glandular; petals light to cream-yellow or-white, broadly obovate, 7–13(–15) mm; stamens (52–)60–90(–125); carpels (3–)4–7(–10). Achenes oblanceoloid, 6–8 × 1.8–2.2 mm, 12-ribbed, persistent style 35–59 mm, plumose hairs 1.4–2.2 mm. 2n = 18.
Pinyon-juniper, Joshua tree, yellow pine woodlands, arid desert scrub, desert chaparral; at elevations from 1,000-2,600 metres. Dry slopes and mesas and in limestone canyons.
Home