Sisymbrium altissimum
An invasive mustard from Eurasia. Similar to Sisymbrium irio except more common northwards and with conspicuous long hairs on the leaves and stems.
Plant habit at Hidden Valley, near Moab, 6/17/06.
A flower at Hidden Valley, 6/17/06.
Basal rosettes at Hidden Valley, 6/17/06.
Closer view of basal leaves at Hidden Valley, 6/17/06.