CAUTION! This plant contains toxins that cause minor skin irritation. When treating, wear appropriate clothing to prevent resinous substances from contacting skin.
Anthriscus sylvestris is a herbaceous biennial that grows up to 3.25 ft. (1 m) in height. The stems are hollow and covered in hairs.
The plant has alternately arranged, compound, fern-like leaves. Each segment of the leaf can measure 0.5-2 in. (1.5-5 cm) in length.
The umbels of this plant are large, having 6-15 rays that can reach up to 1.5 in. (4 cm) in length. Each of the bractlets is lance-ovate in shape and measures 0.1-0.25 in. (3-6 mm) in length. The flowers are white and have 5 notched petals. Anthriscus sylvestris blooms from May to June.
The fruits are smooth, lanceolate in shape and measure 0.25 in. (6 mm) long. They have a pronounced beak that measures 0.04 in. (1 mm) long. The fruits start out green and turn brown as they ripen.
This is considered a watch list species
Native to Europe
Abandoned Field, Agricultural Field, Edge, Open Disturbed Area, Pasture, Yard or Garden. Anthriscus sylvestris grows well in rich moist soils and is most commonly found along roadsides, meadows, and pastures. It is particularly problematic in hayfields and pastures in central Vermont
Anthriscus sylvestris can reproduce both by seed and by vegetative means. Vegetatively, it makes use of aggressive, fast spreading taproots that have lateral root buds capable of sprouting new plants.
Anthriscus sylvestris may be transported by vehicles, particularly those used to mow it down after it has set seed, as well as people, animals, and wind. Since it is tall and grows aggressively, it may outcompete native vegetation by forming extensive stands resulting in shading of other species, and by utilizing resources more effectively.