Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Crocanthemum

View taxon page for Crocanthemum

(For a list of species in Crocanthemum, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Glandular hairs dense on inflorescence branches, ; outer sepals calyx hairs 1–1.7 mm,  (sometimes also with short  hairs) ..... C. greenei

1' Glandular hairs 0 to sparse on inflorescence branches, pedicels; outer sepals ; 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,  to , together cup-like or not; deciduous in mid summer ..... C. scoparium

3. Plants generally 10–30 cm; stems proximally spreading and distally  or proximally ascending and distally erect; outer sepals 1.5–2.5 mm; NCo, NCoRO, CCo, SnFrB, SCo (rare), n ChI (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; NCoRO, NCoRI, n SNF, SnJV, SnFrB, SCoRI, SCo, WTR, SnGb, PR ..... 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; SCo, PR ..... C. aldersonii

4' Stems, leaves, inflorescences densely stellate-felt-like (occasionally stems moderately stellate-hairy); inflorescences narrow; n SNF ..... C. suffrutescens



Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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