Diplotaxis tenifolia (L.) DC.
Annotated by Peter F. Zika, 2011.

Washington: Seattle, alley near 44th Avenue southwest and southwest Brandon Street. Elev. 1200 m
47.55° N, 122.39° W,
Datum: Unknown. Coordinate Source: Verbatim from Collector/Sheet.
Cracks in concrete, with Agrostis capillaris, Plantago lanceolata, Buddleja, Centranthus. Yellow petals 10-11 mm long; perennial; to 1 m tall; occasional escape from cultivation in area.

Peter F. Zika 25772, 2011 Sep 12
With A.L. Jacobson
UBC, Accession: V237117