Helianthus grosseserratus M.Martens
Determiner: Nee, M. (2020)
Nee, M.H. 66426
Verbatim Date: 11 Sept. 2020
United States, Wisconsin, Iowa, 7.5 km (straight line) NE of Dodgeville, Governor Dodge State Park, Old Orchard Trail at bridge over small creek
43° 02' 11" N 90° 05' 35" W; TRS: T07N R03E sec 35 NE4SE4
Marshy area along creek, Silphium perfoliatum, Sagittaria latifolia, Polygonum sagittatum, Typha.
[Sheet 1 of 2]. The same species but larger and with more heads in the inflorescence than Nee 66392 on nearby much drier slope.; Plants 2 m. tall, with Sagittaria latifolia in wet part of marsh; the same species forming a large stand of separated stems in somewhat higher part of marsh. Some roots thickened at junction with stem, quickly thinning distally.
Record Id: 512523c0-b716-49c0-8c5b-6ca0fa851c7a
Occurrence ID (GUID):