Helianthus tuberosus L.

Large, solid colony 15 x 15 m., between cornfield and small
creek. To 2.3 m. tall; stems scabrous to the base. Very few
mid-stem leaves still present, all opposite below alternate ones
in the branching for the inflorescence. Rays bright yellow; disc
slightly darker yellow. No tubers noted when plants pulled up.
Coll.: M. Nee 55964
29 Aug. 2008
02893737
The New York Botanical Garden
Plants of U.S.A.
Asteraceae Helianthus tuberosus L.
det. M. Nee, 2008
Wisconsin, Richland Co., along Hwy. O, near Snake Creek,
just E of junction with Hwy. OO and Orion Town Hall.
T 9 N; R 1 E; SWA NE'/i sect. 10.
• 43°16’27”N, 90°2r41”W. alt. 220 m.
Unshaded edge of roadside and cornfields, deep rich moist soil
with Polygonum lapathifolium, Urtica dioica, Arctium minus,
Helianthus tuberosus, Carex.
02893737