Foothills, montane. Fields, lawns, roadsides. Spring, summer.
Near Yellow Jacket Canyon, May 20, 2011.

Capsella bursa-pastoris is a common alien weed that dates its invasion of our area to at least the late 1800s.  As the map below indicates, the plant occurs in almost every county of every state in the United States.  The plant grows on disturbed sites from about 850 to 3000 meters elevation.

Stems are erect to about 20 inches tall and the plant is hairy, often covered with stellate hairs (in a starburst pattern).

In 1753 Linnaeus named this species Thlaspia busrsa-pastoris.  In 1792 Medikus named the Capsella genus and renamed this species Capsella bursa-pastoris . 

Range map © John Kartesz,
Floristic Synthesis of North America

State Color Key

Species present in state and native
Species present in state and exotic
Species not present in state

County Color Key

Species present and not rare
Species present and rare
Species extirpated (historic)
Species extinct
Species noxious
Species exotic and present
Native species, but adventive in state
Eradicated
Questionable presence

Range map for Capsella bursa-pastoris