Leafl. Bot. Observ. Crit. 1: 208. 1906.
Plants erect, main-stem unbranched or with ascending branches from base, 2–50 cm, densely hairy distally, hairs stellate, 1–3-armed, arms to 2 mm. Leaf-blades 3-cleft to beyond middle, usually 2–5 cm wide, divisions toothed to subcleft distally. Inflorescences usually exceeding leaves. Pedicels mostly 1–8 cm, longer in fruit; involucellar bractlets linear, (2.5–) 4–10 (–15) mm. Flowers bisexual or pistillate; calyx 4.5–13 mm, lobes 3.2–11 × 1.5–4 mm; petals white or pale to deep mauve, 5.5–20 (–25) mm, equaling or exceeding calyx. Mericarps 9–22, brownish to blackish, ± wedge-shaped, cushionlike, 1.5–1.8 mm, margins rounded, radially corrugated.
Subspecies 2 (2 in the flora).
|1||Flowers bisexual; petals mauve; calyx 10–14 mm, lobes 2.5–4 mm wide.||Eremalche parryi subsp. parryi|
|1||Flowers bisexual or pistillate; petals white or mauve, (proportionally smaller and carpels more numerous in female flowers); calyx 4.5–9(–10) mm, lobes 1.5–3(–3.5) mm wide.||Eremalche parryi subsp. kernensis|