selected vouchers: Not at WTU; WS?
Notes: [Europe] In our area known only from Oreg., in Baker County and from near Portland and Salem [H&C p. 693].
FNA24: "Desmazeria rigida is native to Europe, and appears to have no distinctive habitat preferences. In the Flora region, it is now established as a weed in disturbed sites such as roadsides, ditches, and the edges of fields. It is probably more widespread than indicated on the map because herbarium records of weed distributions are often poor."