Jepson eFlora
Key to families | Table of families and genera

Key to Arctium

View taxon page for Arctium

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]
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