Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Xanthium

View taxon page for Xanthium

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

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

1. Nodal spines present, generally 3-lobed, 15–30+ mm, golden;   ±  to  or lance-linear, abaxially densely , gray to white ..... X. spinosum

1' Nodal spines 0; leaf blade nearly round to ± pentagonal or , abaxially minutely coarse-hairy, green ..... X. strumarium



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

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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