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

Key to Ageratina

View taxon page for Ageratina

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

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

1. Heads generally solitary (rarely 2–3) ..... A. shastensis

1' Heads clustered

2. Leaves alternate distally on stem; heads 8–10 mm ..... A. occidentalis

2' Leaves opposite throughout; heads 6–8 mm

3. Leaf blade generally 40–100 mm; petiole generally 20–40 mm ..... A. adenophora

3' Leaf blade generally 15–55 mm; petiole generally 5–10 mm ..... A. herbacea


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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