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Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Annual to perennial herb.
Leaf: petioled or not; blade entire to deeply lobed.
Flower: sepals 4–8, margins generally white; petals 4–6, base generally dilated, limb generally lobed; stamens 10–25, on prominent disk; stigmas 3–5.
± 65 species: especially Eur, Medit; cultivated as ornamental and naturalized widely. (Latin: to calm, from supposed sedative property)
1. Sepals and petals 4; leaf entire ..... R. luteola
1' Sepals and petals 5–6; leaf entire or lobed
2. Lf pinnately lobed, lobes 4–11 per side; petals alike, ± equally 3-lobed; fruit 4-parted, with persistent filaments ..... R. alba
2' Lf entire or 3- or pinnate-lobed, lobes 0–3 per side; petals not alike, entire to unequally 6-lobed; fruit 3-parted, without persistent filaments
3. Lf pinnately lobed, lobes 1–3 per side; bracts not persistent; pedicel 2–4.5 mm; stamens 14–17; seed 1.5–1.7 mm, smooth ..... R. lutea
3' Lf entire to 3-lobed, lobes 0–1 per side; bracts persistent; pedicel 4–12 mm; stamens 20–25; seed 2–2.2 mm, rough ..... [R. odorata]
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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