Basal leaves are broad and kidney shaped. One of many invasive plants in Pennsylvania, garlic mustard (Alliaria petiolata) was introduced on the east coast in the 1860s and has since spread throughout the Northeast and Midwest.This shade-tolerant invasive plant outcompetes native vegetation. Petals are white, about 1/4 inch long and are twice as long as the sepals. Garlic mustard, also known as 'Jack-by-the-hedge', likes shady places, such as the edges of woods and hedgerows. Garlic mustard is a Class A noxious weed with a limited distribution in Washington, and eradication is required state-wide. Common name: Garlic mustard, Jack-by-the-hedge Scientific Name: Alliaria petiolata (syns. garlic mustard. ... garlic-like scent when bruised or crushed ©2020 University of Massachusetts Amherst • Site Policies. Garlic Mustard is Allelopathic, meaning it produces chemicals that hinder or prevent growth of other plants. Family Name: Brassicaceae (Cruciferae) - Mustard Family. Civil Rights and Non-Discrimination Information Cavara & Grande Family: Mustard Family (Brassicaceae) Similar Species: Large-leafed avens (Geum macrophyllum) is commonly mistaken for garlic mustard rosettes. Profile of garlic mustard: Scientific name: Alliaria petiolata. Flower Description . Cavara & Grande. Common Name: Garlic Mustard Scientific Name: Alliaria petiolata (M. The Impact of Garlic Mustard. Avens have highly dissected leaves divided all the way to the petiole base. Garlic mustard is not related to garlic, it is related to watercress. Scientific Name: Alliaria petiolata (Bieb.) It is a biennial plant, so takes two years to complete its lifecycle. It belongs to the mustard family (Brassicaceae). Alliaria alliaria) Noxious Weed Listing: WeedWise: Containment State of Oregon: Class B State of Washington: Class A 4-County CWMA: Class A Columbia Gorge CWMA: Class A Description: General: Garlic mustard is a biennial plant in the Brassicacaea (Mustard) family. Garlic mustard is an aggressive woodland invader throughout much of the Continental United States. Upper stem leaves are Cavara & Grande Legal Status: Restricted Propagation and sale of this plant are prohibited in Minnesota. Plant family: borages (Brassicaceae) Flowers have 4 petals, 4 sepals and 6 stamens. Leaf Description . Gallery: Common names: garlic mustard, Jack-by-the-hedge Scientific Name: Alliaria petiolata (syns. It gets its name from the garlic fragrance that comes from rubbing the leaves. The garlic mustard is a widespread plant in Europe. Alliaria alliaria) Description: Garlic mustard is a biennial plant in the Brassicaceae (mustard) family. The scientific name of Garlic Mustard is Alliaria petiolata. Bieb.) It can grow to over a metre tall and has small white flowers that appear from April. Garlic mustard is a biennial to short-lived perennial plant that is garlic scented and can grow to a height of 3 feet. 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