Photographer: Merel R. Black
Sisymbrium officinale (L.) Scop.
Sisymbrium: Greek name for some plant of the mustard family
officinale: Latin generally meaning "of the shops" or "sold in the marketplace" or "official"
|Status: ||Introduced - naturalized|
|Plant: ||erect, annual, 12"-32" tall forb|
|Flower: ||light yellow, 4-parted, 1/3" wide; inflorescence a stiff cluster (raceme) of stalked flowers; blooms May-Sept.|
|Fruit:||long, thin pod held near the stem|
|Leaf:||lower leaves stalked, deeply pinnately-divided with the end segment rounded and toothed; upper leaves stalkless, often un-divided, smaller|
|Habitat: ||disturbed sites|