The Jepson Manual: Higher Plants of California

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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

Names are linked to treatments from the Manual


Key to AGERATINA

N.B.: couplets are linked, e.g., 1. is linked to 1'.

  1. Heads generally solitary (rarely 2–3)
A. shastensis
  1' Heads clustered
 
    2. Leaves generally alternate; heads 8–10 mm
A. occidentalis
    2' Leaves opposite; 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


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