Helianthus decapetalusL.
accepted no accepted
Thinleaf Sunflower


CAYUGA FLORA (1926) NOTES: Thickets on low alluvial soils or on the richer talus at the base of ravine cliffs, rarely in more exposed places; common, and generally distributed. July 25-Sept. Me. and w. Que. to Minn., southw. to Ga., Tenn., and Mo. ; rare or absent on the Coastal Plain.

BH SPECIMENS FOR Helianthus decapetalus (this list may be incomplete)
 Ithaca, Fuertes Bird Sanctuary between Fall Creek, East Hill and Cayuga Lake, open alluvial and marshy flats, ca. 1.7 m. tall, rays yellow, 11 Aug 1974, Krusi (BH 107841);
 Ithaca, Sep 1911, Bailey (BH 21980);
 Ithaca, south bank of Beebe Lake, near site of Girls' Boathouse, 27 Aug 1926, Burnham 16781 (BH 21986);
 Ithaca, Forest Home, south bank of Fall Creek, 29 Jul 1921, Burnham 14064 (BH 21987);
 Ithaca, Fall Creek, woods, 2 Sep 1875, Dudley (BH 21988);
 Newfield, Connecticut Hill, dry gravelly roadside, 23 Aug 1925, Eames 16321 (BH 21977);
 Ithaca, between the city and Cayuga Lake west of the Inlet, open alluvial and marshy flats, moist thicket, east edge of marsh, 4 Aug 1915, Eames & MacDaniels 5278 (BH 21969);
 Ithaca, Fall Creek Ravine, north side of Beebe Lake, moist woods, 16 Aug 1915, Eames & Thomas 5279 (BH 21976);
 200 m from Fall Creek, west of NYS Rte. 13, woodland, dense overstory flood plain forest, gravelly soil, with Rubus odoratus and Laportia canadensis, herb ca. 1.5 m tall, yellow flowers, 13 Sep 1983, Field 18 (BH 21968);
 N of Myers Point, Cayuga Lake, sunny, rough field, perennial, disc and ray flowers deep yellow, 21 Jul 1948, Lawrence & Dress 554 (BH 21979);
 Ithaca, 15 Sep 1885, Moore (BH 21967);
 Ithaca, Six Mile Creek Gorge, 23 Aug 1922, Muenscher & Bechtel 729 (BH 21991);
 Ithaca, Fall Creek Ravine and vicinity, dry thickets, 16 Aug 1913, Palmer 1300 (BH 21978);
 Ithaca, between the city and Cayuga Lake west of the Inlet, West Marsh, by Glenwood Road, open alluvial and marshy flats, 7 Aug 1913, Palmer 1301 (BH 21970);
 Brooktondale, roadside, 24 Jul 1918, Randolph (BH 21972);
 Ithaca, Aug 1875, Rowlee (BH 21981);
 Ithaca, Six Mile Creek, 28 Aug 1926, Rowlee & Dunlap (BH 21971);
 Ithaca, Fall Creek Ravine, below Beebe Lake, 5 Sep 1943, Schuster 20940 (BH 21975);
 Ithaca, Fall Creek Ravine, below Beebe Lake, 5 Sep 1943, Schuster 20940 (BH 21974);
 Danby, edge of east Mill Road just east of Nelson Road, marshy area off edge of road, 1 Aug 2002, Werier 1347 (BH 21989);   VEmap  GOOmap
 Town of Ithaca, along Rte. 89 near Hangar Theater and Treman Marina, cliffs, 28 Sep 1981, Wesley FRW1349 (BH 21990);
 Newfield, Connecticut Hill, dry roadside, 30 Jul 1916, Wiegand 7298 (BH 21973);
 Ithaca, west side of Cayuga Lake, 10 Aug 1904, Wiegand & Cipperly (BH 21985);