Sonchus arvensis subsp. uliginosus (M.Bieb.) Nyman

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The New York Botanical Garden
Sonchus arvensis L. subsp. uliginosus (M. Bieb.) Nyman
det. M. Nee, 2012
NEW YORK BOTANICAL GARDEN
03071088
PLANTS OF OREGON
Asteraceae
SONCHUS ARVENSIS
var. GLABRESCENS (Guenther) Grab. & Wimme
Flowers yellow; plants perennial, 1.2-1.5
meters tall with milky sap.
MORROW CO.: Along U.S. Hwy. 730, 1.7 miles
east of Irrigon; wet roadside bank.
Elev.: ca. 88 m. T:5N R:27E S:21
Assoc, sp.: Typha, Cirsium, Veronica, Solanum,
Agropyron, Rumex
Richard R. Halse 5172	12 Aug 1996
OREGON STATE UNIVERSITY (OSC)
03071088