TOMPKINS COUNTY FLORA
Xanthium strumariumL.
Mitchell NYNYFA TCUSDA NY
accepted no accepted
Canada Cockleburr, Rough Cockleburr

Asteraceae

CAYUGA FLORA (1926) NOTES: Damp sandy or gravelly banks and shores; frequent. Aug.-Sept. Widely distributed in N. A. except in the colder parts of Canada. Found also in Eu. and Cent. Am., and perhaps in other countries. The following forms are found in the Cayuga Lake Basin: (1) Burs glabrous or minutely puberulent and atomiferous, fusiform, averaging somewhat smaller than in the other forms (X. chinense Mill., X. pungens Wallr., X. glabratum Britton, X. americanum Britton & Br., possibly Walt., X. canadense of Grays Man., ed. 7, and of Cayuga Fl. (2) Burs more or less hispid, the body ellipsoidal with generally prominent beaks (X. italicum Mor., X. pennsylvanicum Wallr., X. commune Britton and of Grays Man., ed. 7, X. canadense var. echinatum, in part, of Cayuga Fl.). (3) Burs hispid, the body ovoid, broadly elliptic-ovoid, or oval, the beaks less prominent (X. glanduliferum Greene?, X. canadense var. echinatum, in part, of Cayuga Fl., X. echinatum, in part, of Grays Man., ed. 7). (4) Spines far apart and few in number, otherwise generally as in no. 2 (X. Wootoni Cockll.). The spines in this last-named form vary in number toward the normal, and the plants occur as individuals in otherwise normal colonies. In each of the above-named forms the spines vary greatly in shape and abundance.


BH SPECIMENS FOR Xanthium strumarium (this list may be incomplete)
 Ithaca, South Hill, grounds about Morse Chain Works, form No. 2, 30 Aug 1936, Allen 19480 (BH 29646);
 Ithaca, Forest Home, Fall Creek, below second bridge, gravelly bank, 9 Sep 1919, Bechtel 13157 (BH 29654);
 Ithaca, Forest Home, Fall Creek, below second bridge, gravelly bank, 9 Sep 1919, Bechtel 13164 (BH 29669);
 Ithaca, Renwick Park, sandy strand, 19 Sep 1917, Bechtel & Wiegand 8958 (BH 29666);
 Ithaca, Cornell University Campus, near Beebe Lake, filtered sun, moist soil, 5 Sep 1983, Bolton 7 (BH 29647);
 Ithaca, Bailiwick, , Brong (BH 29680);
 Ithaca, on Bryant Avenue, to the west of the Cosmopolitan Club, newly seeded lawn, seedlings, Jun 1941, Burnham 20470 (BH 29662);
 Ithaca, Stewart Park, shore of Cayuga Lake, sandy shore, 3 Oct 1942, Clausen 5952 (BH 29634);
 Ithaca, trail along Six Mile Creek, rocky soil next to stream. Acer rubrum saplings, grasses, herb about 3 feet tall, 25 Sep 1983, Ducey 44 (BH 29651);
 Ithaca, Cayuga Lake shore, Sep 1875, Dudley (BH 29665);
 Ithaca, along Fall Creek below Varna, sandy alluvium, 12 Sep 1915, Eames & MacDaniels 5266 (BH 29653);
 Ithaca, along Fall Creek below Varna, sandy alluvium, 12 Sep 1915, Eames & MacDaniels 5267 (BH 29661);
 Ithaca, Cascadilla Creek, above girls' tennis courts, dry ground, 20 Aug 1917, Gershoy 8963 (BH 29635);
 Ithaca, Stewart Park, Cayuga Lake, sandy shore, 13 Sep 1916, Metcalf & Wiegand 7290 (BH 29667);
 Ithaca, Stewart Park, shore of Cayuga Lake, sandy shore, 13 Sep 1916, Metcalf & Wiegand 7288 (BH 29660);
 Ithaca, southern bank of Fall Creek above the west Forest Home bridge, near water in open gravelly area, found with Polygonum pennsylvanicum and Lythrum salicaria, 3 Sep 1983, Miller 3 (BH 29652);
 Ithaca, South shore, Cayuga Lake, 11 Sep 1920, Muenscher & Bechtel 683 (BH 29681);
 Ithaca, southern shore of Cayuga Lake, 11 Sep 1920, Muenscher & Bechtel 684 (BH 29636);
 Ithaca, Fall Creek Ravine, at head of Beebe Lake, exposed bar, 27 Aug 1913, Palmer 1286 (BH 29674);
 Ithaca, 13 Aug 1881, Rowlee (BH );
 Ithaca, 31 Aug 1876, Rowlee (BH 29638);
 Ithaca, Cascadilla Ravine, girls' playground, low ground, 12 Sep 1914, Wiegand 3298 (BH 29655);
 Ithaca, Fall Creek, Beebe Lake, gravel bar, 13 Sep 1916, Wiegand 7287 (BH 29650);
 Ithaca, Renwick, shore, 14 Sep 1919, Wiegand 13160 (BH 29676);
 Ithaca, Renwick, shore, 14 Sep 1919, Wiegand 13161 (BH 29673);
 Ithaca, Renwick Park, sandy strand, 19 Sep 1917, Wiegand 8953 (BH 29657);
 Ithaca, Renwick Park, sandy strand, 19 Sep 1917, Wiegand 8957 (BH 29668);
 Ithaca, Renwick Park, sandy strand, 19 Sep 1917, Wiegand 8956 (BH 29664);
 Ithaca, Fall Creek, above Forest Home, rock and gravel, edge of water, 20 Sep 1917, Wiegand 8952 (BH 29648);
 Ithaca, Lehigh Valley Railroad Station, waste ditch side, 29 Sep 1917, Wiegand 8962 (BH 29672);
 Ithaca, Fall Creek, Beebe Lake, gravel bar, 3 Sep 1916, Wiegand 7289a (BH 29659);
 Ithaca, Lake shore, 30 Sep 1893, Wiegand (BH 29682);
 Ithaca, lake shore, 30 Sep 1893, Wiegand (BH 29637);
 Ithaca, Renwick Park, forty foot along lake front, 30 Sep 1917, Wiegand 8950 (BH 29656);
 Ithaca, Renwick Park, about forty feet along front of Cayuga Lake, 30 Sep 1917, Wiegand 8959 (BH 29649);
 Ithaca, Renwick Park, shore of lake, 30 Sep 1917, Wiegand 8960 (BH 29675);
 Ithaca, opposite Lehigh Valley Railroad Station, ditch, 30 Sep 1917, Wiegand 8954 (BH 29677);
 Ithaca, near Remington Salt Plant, along railroad, 30 Sep 1917, Wiegand 8955 (BH 29671);
 Ithaca, Remington Salt Plant, railroad bank, 30 Sep 1917, Wiegand 8961 (BH 29670);
 Ithaca, opposite Lehigh Valley Railroad Station, 30 Sep 1917, Wiegand 8951 (BH 29663);

SPECIMENS OF Xanthium strumarium var. canadense
 Ithaca, Renwick, around Wharton Studio, 27 Sep 1918, Wiegand 10983 (BH 29645);

SPECIMENS OF Xanthium strumarium var. glabratum
 Ithaca, Renwick, shore, 14 Sep 1919, Wiegand 13158 (BH 29658);

SPECIMENS OF Xanthium strumarium var.
 Ithaca, opposite Lehigh Station, waste field, 21 Aug 1918, Randolph (BH 110084);

11 IMAGES FOUND: IMAGES 1 - 11:

Xanthium strumarium

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