Alliaria petiolata

Alliaria petiolata
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Brassicales
Family:	Brassicaceae
Genus:	Alliaria
Species:	A. petiolata
Binomial name
Alliaria petiolata (M.Bieb.) Cavara & Grande
Synonyms[1]
Alliaria alliacea (Salisb.) Britten & Rendle Alliaria alliaria (L.) Huth Alliaria fuchsii Rupr. Alliaria mathioli Rupr. Arabis alliaria Bernh. Arabis petiolata M.Bieb. Clypeola alliacea Crantz Crucifera alliaria (L.) E.H.L.Krause Erysimum alliaceum Salisb. Erysimum alliaria L. Erysimum cordifolium Pall. Hesperis alliaria (L.) Lam. Pallavicinia alliaria (L.) Cocc. Sisymbrion alliarium St.-Lag. Sisymbrium alliaria (L.) Scop. Sisymbrium truncatum Dulac

Alliaria petiolata, or garlic mustard, is a biennial flowering plant in the mustard family (Brassicaceae). It is native to Europe, western and central Asia, north-western Africa, Morocco, Iberia and the British Isles, north to northern Scandinavia,^[2] and east to northern Pakistan and Xinjiang in western China.^[1]

In the first year of growth, plants form clumps of round, slightly wrinkled leaves, that when crushed smell like garlic. The plants flower in spring of the next year, producing cross-shaped white flowers in dense clusters. As the flowering stems bloom they elongate into a spike-like shape. When flowering is complete, plants produce upright fruits that release seeds in mid-summer. Plants are often found growing along the margins of hedges, giving rise to the old British folk name of jack-by-the-hedge. Other common names include: garlic mustard,^[3] garlic root, hedge garlic, sauce-alone, jack-in-the-bush, penny hedge and poor man's mustard. The genus name Alliaria, "resembling Allium", refers to the garlic-like odour of the crushed foliage. All parts of the plant, including the roots, have this smell.