Tumble Mustard (Sisymbrium altissimum)
Image ID: 2017/gtwn111LTap/mouseover and drag to zoom/pan.
Family: Brassicaceae (Mustard)
Height: 2 to 3 ft.
Blooms: May to August
Leaf Type: lobed
Bloom Size: 0.3 in. (typical)
Flower Description: Flat or rounded clusters, Regular blooms, 4 parts
Location: Ghost Town Trail
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We started out as wildflowers from the bicycle trails of western Pennsylvania, but we've grown!