Alliaria petiolata (M.Bieb.) Cavara & Grande  
Family: Brassicaceae
garlic mustard
[Alliaria alliaria (L.) Britton, Alliaria officinalis Andrz. ex M.Bieb., Arabis petiolata M.Bieb., Erysimum alliaria L., Sisymbrium alliaria (L.) Scop.]
Alliaria petiolata image
Robert H. Read  
Etymology: Alliaria: from Allium meaning "onion" or "garlic"
Plants: erect, biennial, 12"-40" tall forb, forming large, dense mats, first year plants an evergreen, basal rosette; stems mostly unbranched, hairless
Leaves: alternate, coarsely toothed, stalked, strong garlic smell when crushed; lower kidney shaped, upper triangular
Flowers: white, 4-parted, 1/3" wide, petals rounded at the top, narrowing towards the base; inflorescence a short, terminal cluster (raceme) of stalked flowers; blooms April-June
Fruits: long, thin, 4-angled pods, both horizontal and pointing upward
Habitat: partial shade, shade; moderate moisture to moist; woods, woods edges
Invasiveness: Restricted Invasive - Eradicate!
Conservation Status: Introduced - naturalized; ecologically invasive
Alliaria petiolata image
Paul Drobot  
Alliaria petiolata image
Merel R. Black  
Alliaria petiolata image
Botanical Illustration  
Alliaria petiolata image
Paul Drobot  
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