Helianthus tuberosus L.

The New York Botanical Garden
Plants of U.S. A.
Asteraceae Helianthns tuberosus L.
det. M. Nee, 2008
Wisconsin, Richland Co., along Quarry Road at junction
with Hwy. 58, % mile N of Loyd.
T 11 N; R 2 E; SE'A SW% Sect. 15.
43°25’37”N, 90°14’37”W. alt. 250 m.
Flat bottom of valley, unshaded roadside ditch with Daucus
carota, Polygonatum canaliculatum, Rhus typhina,
Silphium perfoliatum, Thalictrum dasycarpum, Helianthus
tuberosus, H. giganteus, surrounded by cornfields.
Large colony; plants 1.5 .S3, tall. Rhizomes short, ending in
tubers. Rays bright yellow; disc slightly darker yellow.
Rays with slightly orange tint compared to those of no.
55951 Helianthus giganteus growing here.
Coll.: M. Nee 55950
27 Aug. 2008
02893759