UC IPM Online UC ANR home page UC IPM home page

UC IPM Home

Search

SKIP navigation

Home & garden
Agriculture
Natural environments
Exotic & invasive

Weather data & products
Degree-days
Interactive tools & models

Publications & more
Workshops and events
Training programs
Pesticide information

Grants programs
Funded-project results


 

How to Manage Pests

Identification: Weed Photo Gallery

Hairy fleabane

Scientific name: Conyza bonariensis (Family Asteraceae)

Life stages of Hairy fleabane top picture bottom left picture bottom right picture

Click on image to enlarge

DESCRIPTION:
Hairy fleabane, a common summer annual or biennial of waste areas and cultivated fields, may be confused with horseweed. Both plants grow in the same areas, but hairy fleabane has a more branching growth habit with more abundant, basal foliage. Hairy fleabane seedlings are covered with short, soft hairs. Gray green seed leaves are about twice as long as they are wide. Mature plant is 1.5 to 3 feet (0.5 - 0.9 m) tall and well branched. Flowers are small, dull white, and held on flowering stalk at the upper parts of the branches. It competes severely for water and grows rapidly.

Broadleaf ID illustration.


Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2008 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. /PMG/WEEDS/hairy_fleabane.html revised: March 11, 2008. Contact webmaster.