Desmodium canadense D.C. TICK TREFOIL. "Near
Clifton, Ontario, Day, (1888). Ontario, Queen Victoria Park, Panton (1890). Ontario, Niagara Park System, Cameron (1895). Ontario:
Niagara Falls, Aug. 21, 1879, T. J. Burgess (TRT 85.250); Queenston, Wm. Scott,
Sept. 7, 1898, Heimburger (1955). "... may be found in the Parks,"
Hamilton (1943).
New York: Buckhorn Island, woods border, e/w
path, north boundary, Eckel, Oct. 21, 1997 (BUF).
Ontario:
"Stamford," Julie, July 19, 1963 (NFO).
Desmodium ciliare (Muhl.)
DC. HAIRY SMALL-FLOWERED TICK TREFOIL. (As D. obtusum) "Dry,
sandy thickets, Queenston Heights, Ont., 1877. (Macoun.)" Macoun (1883).
"Dry, sandy thickets, Queenston Heights, Niagara River, Ontario, 1877
(Macoun, Cat. of Can. Pl.)," Heimburger (1955). "Queenston Heights,
Ontario" (Macoun), Day (1888).
Range: swOnt. Ont.: Niagara Falls. Status: Rare and possibly
extirpated in Canada, Argus & White (1977). From the Niagara area of
Ontario, the only Canadian station, it was "Last collected in Ontario in
1891 and possibly extirpated," in "Dry, sandy thickets and
woods," (Gillett in Argus & Keddy, 1984). Listed as rare and probably
absent from the Niagara Frontier flora due to habitat destruction by Zander and
Pierce (1979). This species is on the Rare Plant Status List of the New York
Natural Heritage Program (Young, 1992).
Desmodium cuspidatum (Muhl.) Loud. POINTED-LEAVED TICK
TREFOIL. "... at Queenston Heights. (Douglas.)" Macoun (1883).
"Queenston Heights, Ontario (Macoun, on the authority of Douglas),"
Day (1888). Ontario, Niagara Park System, Cameron (1895). Ontario: Niagara
Gorge edge, soil over limestone, Miller (452), Aug. 12, 1948, Heimburger
(1955). (As Desmodium bracteosum) "... grows at Pebbly Beach
in the Glen," Hamilton (1943).
Ontario:
"whirlpool," Queen Victoria Park, Cameron, 1893 (NFO);
"parkway," Hamilton, Aug. 8, 1939 (NFO); "top of whirlpool
hill," July 6, 1939 (NFO).
Range: sOnt. Status: Rare in Canada. Endangered
in New Hampshire, Argus & White (1977). The specimen cited for Douglas
probably originated in William J. Hooker's citation of a specimen from Niagara
by David Douglas, the Scottish botanist, in Hooker's Flora Boreali-Americana
(1840).
Desmodium dillenii Darl. DILLEN'S TICK TREFOIL.
"Whirlpool woods, Niagara R., American side," Day (1882). "Dry,
rather open thickets, Queenston Heights. (Macoun.)" Macoun (1883).
"Near DeVeaux College. Queenston Heights, Ontario (Macoun)," Day
(1888). Queenston Heights, Wm. Scott, Aug. 28, 1897; Aug. 13, 1896, Heimburger
(1955). "Niagara Co.: gorge near Niagara Falls (Johnson); near the
Whirlpool (Day, Cat. Niag. Fl.). Ontario: Queenston Heights, Niagara River
(Macoun, Cat. of Can. Pl.)," Zenkert (1934).
New York: (As
D. glabellum Michx.) Niagara
Gorge, dry open woods. Frank W. Johnson Sept. 8, 1924 (BUF).
Mitchell (1986) cites
Desmodium dillenii as a synonym (of some authors, not Darl.) of D.
glabellum. He also cites D. dillenii as a synonym of D.
paniculatum. Zenkert (1934) uses D. paniculatum so I am
assuming his use of D. dillenii is for specimens which are
probably D. glabellum. Desmodium glabellum is on the Rare Plant
Status List of the New York Natural Heritage Program (Young, 1992). See Desmodium
paniculatum below.
Desmodium glutinosum (Muhl.) Wood. STICKY TICK TREFOIL.
(As D. acuminatum) "near DeVeaux College," Day (1888).
Ontario, Queen Victoria Park (as Desmodium acuminatum D.C.),
Panton (1890). Ontario, Niagara Park System (as D. acuminatum),
Cameron (1895). Ontario: one mile south of Queenston, high land, Miller (419),
July 7, 1952, Heimburger (1955). (As D. acuminatum) "... may
be found in the Parks," Hamilton (1943).
New York:
Niagara Falls, Charles A. Zenkert, Sept. 10, 1927 (BUF); "Whirlpool Woods,
dry stony soil," Frank W. Johnson, Sept. 8 1924 (BUF); Lewiston, Scovell's
Knoll, Moist area. ver. Zander. P. M. Eckel 870715 Aug. 11, l986 (BUF).
Ontario:
Queen Victoria Park, Cameron, 1890 (NFO).
Desmodium nudiflorum (L.) DC. NAKED-FLOWERED TICK
TREFOIL. "...
Niagara Falls, Ont. (Macoun.)"
Macoun (1883). "Near DeVeaux College," Day (1888). Ontario, Niagara
Park System, Cameron (1895). Ontario: Niagara, Wm. Scott, Aug. 27, 1898 (TRT
12508); Niagara Gorge edge, soil over limestone, Miller (453), Aug. 12, 1948;
Queenston, J. White, Aug. 1, 1911 (TRT 36.329); Niagara, W. J. Potter, 1908
(TRT, 12519); Queenston Heights, W. Scott, Aug. 13, 1896 (TRT 12.512),
Heimburger (1955). "Along gorge of Niagara River, New York and Ontario
sides," Zenkert (1934). "... may be encountered in the Parks,"
Hamilton (1943).
Desmodium paniculatum
(L.) DC. PANICLED TICK TREFOIL. "Near DeVeaux College and on the opposite
side of the river," Day (1888). Ontario, Niagara Park System, Cameron
(1895). "Near DeVeaux College and opposite (Ont.) side of Niagara River
(Day, Cat. Niag. Fl.)," Zenkert (1934). "... may be found in the
Parks," Hamilton (1943).
Ontario: Queen Victoria
Park, Cameron, 1890 (NFO).
Morton and Venn (1990)
indicate that old Ontario reports of Desmodium dillenii and also D. pauciflorum
(Nutt.) DC. are actually D. paniculatum. Zenkert (1934) differentiates between
D. paniculatum and D. dilennii in his catalogue and his D. paniculatum records
are retained here. See D. glabellum above. Voss (1985) in his Michigan flora
regards D. dilenii as only a variant of D. paniculatum and not worth
recognizing at the specific level.
Desmodium pauciflorum (Nutt.) DC. FEW-FLOWERED TICK
TREFOIL. "Woods at Niagara Falls. (Macoun.)" Macoun (1883).
"Woods at Niagara Falls. (Macoun.)," Day (1888). Ontario, Queen
Victoria Park, Panton (1890). "Ontario: woods at Niagara Falls (Macoun,
Cat. of Can. Pl.)," Zenkert (1934).
Listed as rare in the Niagara Frontier Region
by Zander and Pierce (1979).
Morton and Venn (1990) indicate that old Ontario reports of Desmodium dillenii and also D. pauciflorum (Nutt.) DC. are actually D. paniculatum. Mitchell and Tucker (1997) still recognize D. pauciflorum as distinct, and list it as extirpated from the New York State flora.
[Desmodium rigidum (Ell.) DC.]
TICK TREFOIL. Queenston Heights, John Macoun, July 27, 1877 (TRT), Heimburger
(1955). Ontario, Niagara Park System, Cameron (1895).
Ontario: Queen Victoria
Park, Cameron, 1891 (NFO).
Zander and Pierce (1979)
listed this species (as D. rigidum) as excluded from the flora of
the Niagara Frontier. In Ontario, Morton and Venn (1990) report that "ON
reports need confirmation." Mitchell (1986) listed this species as rare in
New York State. This species is on the Rare Plant Status List of the New York
Natural Heritage Program (Young, 1992). Its range is throughout the southern
United States.
Desmodium rotundifolium (Michx.) DC. ROUND-LEAVED OR
PROSTRATE TICK TREFOIL. "Near DeVeaux College," Day (1888). Ontario,
Niagara Park System, Cameron (1895). Ontario: Queenston Heights, Wm. Scott,
Aug. 13, 1896 (TRT 125.33), Heimburger (1955). "Near the American
Whirlpool (1897) (Miss Wright)," Zenkert (1934); "... may be found in
the Parks," Hamilton (1943).
New York: Deveaux
College woods, Marion Jessup Wright July 14, 1897 (BUF). Ontario: "Niagara Parkway,"
Hamilton, Aug. 21, 1939 (NFO).
Range: swOnt. Status: Rare in Canada. Endangered in New
Hampshire, Argus & White (1977). Probably extirpated from the Canadian
flora, where it grows in "sandy woods," (Gillett in Argus &
Keddy, 1984). Not listed as rare for the Niagara Frontier flora (Zander &
Pierce, 1979) nor for New York State (Mitchell, 1986).