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Key identifying traits
- White flowers arranged in umbrella like cluster
- Fernlike compound leaves have a sheathing base
- Hollow, furrowed stems with lower stem hairy
- Nodes have a fringe of longer hairs
- Each 1/8 to 1/4 inch white flower produces two seeds
- Two seeds are joined and have antennae like tips
- Seeds are dark, ¼ inch long, narrow, smooth, shiny
- Plant grows 1 to 4 feet tall and has a tap root
- Foliage is not aromatic
Biology and ecology
- Biennial or short lived perennial reproduces by seed
- Upright rosette first year; flowers the following May
through June or July
- Found in moist pastures, forested areas and roadsides
Control
Prevention –
Learn to identify the plant; be careful of British wildflower seed mixes
formulated to recreate the flora of hedgerows and meadows of the British
Isles.
Biological – Goats and cattle
will graze chervil (observation by SCNWCB) with very good results. No
other known biocontrols available
at this time
Cultural – Competitive
vegetation helps but can invade well managed areas
Mechanical – Cultivation
generally kills plants although some can regenerate from the crowns;
mowing is ineffective; digging is effective if enough of the tap root is
removed
Chemical –
Refer to the
PNW Weed Management Handbook for specific chemical recommendations |
