TOMPKINS COUNTY FLORA
Conyza canadensis(L.) Cronq.
Mitchell NYNYFA TCUSDA NY
accepted no accepted
Horseweed, Canadian Horseweed

Asteraceae

CAYUGA FLORA (1926) NOTES: A weed in situations similar to the preceding, but in somewhat richer soils; common, and generally distributed. Aug.-Oct. Throughout N. A., except in the extreme North. Found also in other countries.


BH SPECIMENS FOR Conyza canadensis (this list may be incomplete)
 Town of Ithaca, 0.1 km south of Coy Glen Road, open field, 27 Aug 1950, Fairbrothers 42 (BH 67015);
 Ithaca, Ithaca Flats by gas works, 17 Aug 1942, Muenscher & Brown 566 (BH 77687);
 Ithaca, Cornell University Campus, waste soil, 7 Sep 1915, Thomas 5236 (BH 67016);
 Ithaca, Sep 1878, anonymous (BH 21548);
 Ithaca, yard, 9 Aug 1916, Bailey (BH 21546);
 Cornell University Campus about Stone Hall, 21 Sep 1932, Burnham 18190 (BH 21558);
 Ithaca, 29 Sep 1932, Clausen 967 (BH 21547);
 Ithaca, fields, Aug 1875, Dudley (BH 21557);
 Ithaca, back of Wharton Studio, sandy soil, 30 Jul 1917, Gershoy 8927 (BH 21554);
 Ithaca, northeast of Fall Creek School, along road, 14 Aug 1913, Palmer 1258 (BH 21569);
 Ithaca, Cornell University Campus, College of Agriculture, south of Main Building, roadside, 26 Aug 1913, Palmer 1259 (BH 21568);
 Ithaca, Inlet of Cayuga Lake, along railroad tracks, 29 Jul 1918, Randolph (BH 21553);
 Ithaca, Cornell University Campus, waste soil, 7 Sep 1915, Thomas 5236 (BH 21559);

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