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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, perennial herb [ shrub].
Stem: prostrate to erect.
Leaf: simple or pinnate, generally opposite, sessile or petioled.
Inflorescence: heads radiate or discoid, occasionally disciform, generally few in CA; involucre cylindric to bell-shaped; phyllaries in 2 dissimilar series, outer generally ± leaf-like in texture, inner thinner, with transparent or scarious margins; receptacle paleate; paleae narrow, flat.
Ray flower: 0 or few; ray yellow or white.
Disk flower: generally many; corolla yellow, radial (or outermost white, bilateral).
Fruit: narrowly club-shaped, thick or compressed front-to-back; pappus 0 or awns 1–several, generally barbed.
± 230 species: worldwide. (Latin: 2 teeth) [Strother & Weedon 2006 FNANM 21:205–218]
1. Lf simple
2. Lf petioled ..... B. tripartita
2' Lf sessile
3. Fr with ± thickened margin, prominently ribbed; palea tips yellow; ray 0 or < 15 mm ..... B. cernua
3' Fr without thick margin or prominent ribs; palea tips ± red; ray 15–30 mm ..... B. laevis
1' Lf pinnate
4. Fr narrowly cylindric or slightly compressed, 4-angled ..... B. pilosa
4' Fr wedge-shaped, flat
5. Outer phyllaries 5–8; inner phyllaries = disk ..... B. frondosa
5' Outer phyllaries 10–16; inner phyllaries < disk ..... B. vulgata
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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