Lactuca saligna L.

NEW YORK BOTANICAL GARDEN
02925786
det. John Pruski (MO), 2010
MISSOURI. ST LOUIS CITY: Weedy in front
of Monsanto Herbarium Bldg. of the
Missouri Botanical Garden, near jet. of
Shaw Blvd. & railroad in St. Louis.
38°37'01,,N 090°15'50"W	490 ft
Willow lettuce. Uncommon stiffly erect
herb 1.5 m, latex milky; stem leaves
spreading, sagittate, midrib white;
capitulescence columnar, branches
strongly ascending; corollas yellow;
cypselae long-rostrate, compressed but
exalate, thin-margined, body black, each
face ca. 7-striate, rostrum white,
filiform, longer than cypsela body.
05 September 2010
John Pruski 4600
MISSOURI BOTANICAL GARDEN HERBARIUM (MO)
UNITED STATES
ASTERACEAE
Lactuca saligna L.
[280]
02925786