Lactuca serriolaL.
accepted no accepted
Prickly Lettuce


CAYUGA FLORA (1926) NOTES: Gravelly waste places, mostly in calcareous soils ; rare. Aug. Library slope, C. U. campus ; bank of Fall Creek between Lake St. and Cayuga St., Ithaca; roadside, Cayuga Heights; Kidders. Of recent introduction. N. E. to Ohio, southw. to Ga., Tenn., and Mo., but mostly westw. Adventive from Eu. As var integrata: In situations similar to the preceding ; common. Aug. Widely distributed across the northern part of the continent. Naturalized from Eu.

BH SPECIMENS FOR Lactuca serriola (this list may be incomplete)
 Ithaca, Cornell University greenhouse, 19 Dec 1955, anonymous (BH 249139);
 Ithaca, Weed, 10 Sep 1917, Bailey (BH 22248);
 Ithaca, Inlet Flats, 15 Aug 1929, Bailey (BH 22249);
 Ithaca, came up in garden, Juice milky, 3 Jul 1943, Bailey (BH 22254);
 Ithaca, came up in Bailey garden, Very vigorous, 3 Jul 1943, Bailey (BH 22246);
 Ithaca, came up in Bailey garden, 6 feet tall, several stems from one root, 3 Jul 1943, Bailey (BH 22257);
 Ithaca, came up in Bailey garden, flowers light yellow, 3 Jul 1943, Bailey (BH 22253);
 Ithaca, 1905, Baker (BH 22247);
 Town of Dryden, 107 Neimi Road, Five Wells Nature Preserve, Fivewellsania, 5 Sep 1990, Dilger WCD1105 (BH 112760);
 Ithaca, Fall Creek, gravelly bank on flats, 13 Aug 1915, Eames 5331 (BH 22258);
 Ithaca, near Fall Creek Mills, dry roadside, 13 Aug 1918, Eames 5332 (BH 22250);
 Ithaca, Fall Creek, near Percy Field, gravelly bank of creek, 21 Aug 1916, Eames 7332 (BH 22260);
 Ithaca, Cayuga Heights, roadside, 7 Jul 1917, Eames (BH 22259);
 Ithaca, Ithaca Flats by gas company works, 17 Aug 1942, Muenscher & Brown 567 (BH 77692);
 Ithaca, Cornell University Campus, south of College of Agriculture, roadside, dry soil, 26 Aug 1913, Palmer 1365 (BH 22251);
 Ulysses, Trumansburg, 30 Jul 1885, Rowlee (BH 22252);
 Ithaca, railroad track near corner of Cayuga Lake, 28 Sep 1892, Wiegand (BH 22261);
 Ithaca, near Buttermilk, dry waste soil, by roadside, 23 Aug 1913, Palmer 1364 (BH 22255);
 Ithaca, Cornell University Campus, Agricultural campus, roadside, 19 Aug 1918, Randolph (BH 110090);
 Ithaca, bank of Fall Creek, south of Percy Field, 24 Aug 1914, Thomas 3322 (BH 22256);