Jepson eFlora
Key to families | Table of families and genera

Key to Arctium

View taxon page for Arctium

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

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

1. Heads generally 25–40 mm diam, generally long-peduncled in ± rounded or flat-topped clusters; inner phyllaries generally green, margins minutely hairy; pappus 2–6 mm ..... A. lappa

1' Heads generally 10–25 mm diam, sessile to short-peduncled in raceme- or panicle-like clusters; inner phyllaries generally purple-tinged, margins minutely serrate; pappus ± 2 mm ..... A. minus


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