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Key to families | Table of families and genera
1. Glandular hairs dense on inflorescence branches, pedicels; outer sepals lanceolate; calyx hairs 1–1.7 mm, simple, strigose (sometimes also with short stellate hairs) ..... C. greenei
1' Glandular hairs 0 to sparse on inflorescence branches, pedicels; outer sepals linear; calyx hairs <= 1 mm, stellate
2. Petals 4–8 mm; inner sepals 3.5–5(7.5 sporadically along coast and on Santa Cruz Island) mm; fruit 3–4 mm; stems 10–45 cm, spreading to erect, together cup-like or not; deciduous in mid summer ..... C. scoparium
3. Plants generally 10–30 cm; stems proximally spreading and distally ascending or proximally ascending and distally erect; outer sepals 1.5–2.5 mm; North Coast, Outer North Coast Ranges, Central Coast, San Francisco Bay Area, South Coast (rare), n Channel Islands (Santa Cruz Island) ..... C. scoparium var. scoparium
3' Plants generally 30–45 cm; stems proximally ascending and distally erect or generally erect throughout; outer sepals 2–3.5 mm; Outer North Coast Ranges, Inner North Coast Ranges, n Sierra Nevada Foothills, San Joaquin Valley, San Francisco Bay Area, Inner South Coast Ranges, South Coast, Western Transverse Ranges, San Gabriel Mountains, Peninsular Ranges ..... C. scoparium var. vulgare
2' Petals 8–12 mm; inner sepals 4.7–7(8) mm; fruit 3.5–4.3 mm; stems 30–80 cm, erect, together not cup-like; deciduous late summer, fall
4. Stems ± glabrous to sparsely stellate-hairy, leaves and inflorescences stellate-felt-like; inflorescences wide; South Coast, Peninsular Ranges ..... C. aldersonii
4' Stems, leaves, inflorescences densely stellate-felt-like (occasionally stems moderately stellate-hairy); inflorescences narrow; n Sierra Nevada Foothills ..... C. suffrutescens
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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