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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 herbs to shrub.
Leaf: simple, alternate or opposite, generally resinous-dotted, veiny, main veins generally 3.
Inflorescence: heads discoid, generally clustered; involucre cylindric to bell-shaped; phyllaries generally graduated, ± green, veiny- striate, spreading in age; receptacle generally flat, epaleate.
Flower: corolla cylindric, ± white to pale yellow-green, occasionally tinged red or purple; anther tip ovate; style branches long, club-shaped, tips rounded.
Fruit: 10-ribbed, generally cylindric, generally hairy; pappus of 10–40+ generally minutely barbed bristles, generally white.
110 species: w US, Mex, C.Am. (John Brickell, early botanist in Georgia) [Scott 2006 FNANM 21:491–507]
Unabridged references: [King & Robinson 1987 Monogr Syst Bot Missouri Bot Gard 22:220–224]
1. Head 3–7-flowered
2. Lf blade lanceolate to lance-ovate, dentate to serrate; faces gland-dotted and sparsely puberulent or hairy, not appearing glossy or varnished ..... B. knappiana
2' Lf blade linear to lance-elliptic or -ovate, entire or nearly so; faces gland-dotted, appearing varnished or glossy, often also puberulent ..... B. longifolia
3. Lf blade linear or lance-linear to lance-elliptic, flat, not folded or sickle-shaped, 2–9 mm wide, length 8–25 × width, base tapered ..... var. longifolia
3' Lf blade lance-ovate to narrowly lanceolate, folded along midvein and/or sickle-shaped, 2–15 mm wide, length 4–8 × width, base rounded ..... var. multiflora
1' Head 8–90-flowered
4. Perennial or subshrub from woody caudex
5. Petiole 10–70 mm ..... B. grandiflora
5' Petiole 0–2 mm
6. Lf blade ovate, serrate ..... B. greenei
6' Lf blade elliptic, lance-linear or oblong, entire ..... B. oblongifolia var. linifolia
7. Head 40–90-flowered
8. St, leaves densely white-tomentose ..... B. incana
8' St minutely glandular; leaves glabrous or puberulent, often strigose, or with mix of glandular and glandless hairs ..... B. atractyloides
9. Outer phyllaries widely ovate ..... var. atractyloides
9' Outer phyllaries lance-linear to -ovate
10. Margin of outer phyllaries ± entire ..... var. arguta
10' Margin of outer phyllaries dentate ..... var. odontolepis
7' Head 8–35-flowered
11. Lf blade oblong to spoon-shaped, entire ..... B. frutescens
11' Lf blade deltate, ovate, to nearly round or cordate, generally toothed (entire)
12. Phyllaries in 4–7 series, erect
13. Petiole 5–60+ mm; leaf blade 10–100 mm ..... B. californica
13' Petiole 1–2.5 mm; leaf blade 3–15 mm ..... B. desertorum
12' Phyllaries in 5–9 series, tips recurved or spreading
14. Plant densely tomentose and glandular; head 16–24-flowered ..... B. nevinii
14' Plant glandular-puberulent or glands mixed with long, crooked hairs, occasionally short-tomentose; head 8–24-flowered ..... B. microphylla
15. Head 15–28(34)-flowered; plant with glands mixed with long, crooked hairs, occasionally short-tomentose ..... var. microphylla
15' Head generally 8–15-flowered; plant glandular-puberulent ..... var. scabra
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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