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Key to families | Table of families and genera
1. Ray flowers 4–8, pale yellow; involucre generally 4–6 mm diam; heads 2–3 ..... B. pauciradiata
1' Ray flowers 15–many, bright yellow; involucre 7–25 mm diam; heads solitary
2. Rays 10–20 mm, widely linear or oblong, prominently 3-lobed; fruit cylindric or barely angled; ribs ± equal; peduncles generally 10–30 cm, ± naked, scape-like ..... B. multiradiata
2' Rays 6–10 mm, widely elliptic to obovate, shallowly 3-lobed to truncate; fruit ribbed and angled; ribs of angles most prominent; peduncles generally 2–10 cm, generally leafy-bracted ..... B. pleniradiata
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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