Helianthus divaricatusL.
accepted accepted accepted
Woodland Sunflower


CAYUGA FLORA (1926) NOTES: Dry open woods and thickets, in sandy or gravelly noncalcareous soils ; common. Aug.-Sept. On the more residual acid soils of the hills w., s., and s. e. of Ithaca, on the ravine crests and the crests of the cliffs along Cayuga Lake, and in the sandy regions n. of the lake; rare or absent in the McLean region and in the clays and richer soils back from the lake shores. S. Me. to Man., southw. to Fla., La., and Nebr. ; common along the coast. Apparent hybrids with H. strumosus or H. decapetalus occur on Farley Point.

BH SPECIMENS FOR Helianthus divaricatus (this list may be incomplete)
 without locality, 20 Jul 2011, Stalter & Gunner 13 (BH 42178);
 City of Ithaca, base of Stone Quarry Road, near junction with Spencer Road, steep roadside bank in shade, with Cynanchum rossicum, in flower, rays yellow, disc florets yellow, 23 Aug 2017, Tal 5515 (BH 123766);
 Ithaca, South Hill, in clearing over gas-line, 23 Jul 1951, Clausen 8107 (BH 21995);
 Town of Dryden, Turkey Hill, east of Ithaca, 14 Aug 1875, Dudley (BH 21999);
 Ithaca, Cascadilla Woods, woods, Aug 1875, Dudley (BH 21996);
 Ithaca, Cayuga Heights, dry woods, 15 Aug 1915, Eames & MacDaniels 5274 (BH 21998);
 Ithaca, southwest corner of Cayuga Lake, dry open woods, 4 Aug 1915, Eames & MacDaniels 5272 (BH 21992);
 Ithaca, Cascadilla Gorge, open woods, 10 Aug 1920, Muenscher & Bechtel 481 (BH 22002);
 Ithaca, beside Glenwood Road, dry woods, 25 Jul 1913, Palmer 1297 (BH 21997);
 Caroline, top of North Pinnacle, 24 Jul 1918, Randolph (BH 21993);
 Ithaca, 28 Jul 1891, Rowlee (BH 22001);
 Ithaca, Renwick, 23 Sep 1894, Wiegand (BH 22000);
 Ithaca, west side of Cayuga Lake, along Geneva, Ithaca and Sayre railroad track, 28 Sep 1892, Wiegand (BH 21994);