Invasive hedge-parsley (Torilis japonica) is an herbaceous plant that is in the carrot family. Mature plants can reach 6 feet tall and have a white umbrella shaped flower cluster. The flowers appear in July and August. Leaves are fern like, opposite, 2-5 inches long, and have white hairs on both sides. The seeds have Velcro-like hairs that stick to clothes, shoes, and animal fur. This is the main way of seed dispersal. It is important to differentiate invasive hedge-parsley and sweet cicely which is a native wildflower. Crushed sweet cicely leaves smell like licorice which is one way to tell them apart. This species is commonly first spotted along the edges of hiking and biking trails as it falls off animals and peoples clothing.
Have you seen this species? Report it to us or on the MISIN website or smartphone app! Please include a photo to help with ID verification.
Environmental Effects
Invasive hedge-parsley is relatively new to the mid-west, so the full extent of environmental impacts is not fully understood. It is clear that seeds disperse quickly which can lead to dense patches forming. This can prevent native species from becoming established and reduce biological diversity.
Treatment
There are multiple treatment options for Invasive hedge-parsley. These include both chemical and non-chemical options.
NON-CHEMICAL CONTROL METHODS:
Hand pulling: this species has shallow roots and can be easily pulled. The plants should be bagged and thrown away to avoid further spreading. Note: it is best to pull the plant before seeds form and fall off with touch, otherwise more harm then good could be done.
CHEMICAL CONTROL METHODS:
Foliar spraying: if there are dense areas where hand pulling is not feasible, herbicide spraying is an option. The herbicide should be sprayed directly onto leaves. Note: read and follow directions on herbicide label.