Asclepias quadrifoliaJacq.
accepted accepted accepted
Fourleaf Milkweed


CAYUGA FLORA (1926) NOTES: Dry open woodlands and thickets, in sandy or stony noncalcareous soils: frequent. June 5-30. Frequent on the hills and ravine crests w., s., and e. of Ithaca, along the cliffs of Cayuga Lake, and in the sand n. of the lake; rare or absent in the McLean region and on the clays and richer soils back from the lake shores. N. H. to Ont. and Minn., southw. to N. C. and Ark. ; rare on the Coastal Plain. Forms with leaves all in pairs are occasional.

BH SPECIMENS FOR Asclepias quadrifolia (this list may be incomplete)
 without locality, , anonymous (BH 13183);
 Town of Ithaca, Cayuga Heights, open woods, 15 Jun 1918, Randolph (BH 115263);
 Ithaca, Aug 1929, anonymous 17407 (BH 13175);
 Ithaca, back of stadium, faintly lilac flowers, 16 Jun 1932, Bailey (BH 13187);
 Ithaca, 31 May 1896, Bailey (BH 13189);
 Ithaca, Six Mile Creek, north bank of lower reservoir, 10 Jun 1908, Brown (BH 13182);
 Ithaca, , Dudley (BH 13184);
 Ithaca, Coy Glen, dry open gravelly woods, 8 Jun 1913, Eames 974 (BH 13180);
 Ithaca, Cornell University Campus, University Grove, 12 Jun 1870, Jordan (BH 13181);
 Ithaca, along Beebe Lake, 15 Jun 1920, Muenscher & Bechtel 330 (BH 13188);
 Ithaca, Fall Creek Ravine, north of Beebe Lake, dry woods, 17 Jun 1913, Palmer 973 (BH 13179);
 Ithaca, east of Inlet of Cayuga Lake, open alluvial flats, 12 Jun 1918, Randolph (BH 13174);
 Ithaca, Fall Creek Gorge, 8 Jun 1888, Stuart (BH 13176);
 Ithaca, Fall Creek Ravine, north shore of Beebe Lake, dry woods, 12 Jun 1914, Thomas 3041 (BH 13178);
 Town of Ithaca, Cayuga Heights, in open woods, 17 Aug 1915, Thomas 4844 (BH 13172);
 Lansing, Esty Glen, rocky open woods, 16 Jun 1914, Wiegand 3042 (BH 13173);
 Ithaca, glen between Renwick and McKinneys, dry wooded bank, 18 Jun 1916, Wiegand 7031 (BH 13177);
 Newfield, Key Hill, woods, 11 Jun 1936, Wilson & Clausen 2180 (BH 13186);