348 
447, 1855 ; 579, 1865; Bot. & Flor. 263, 1873; Noll, Fl. Pa. 282; 
‘Chapman, Fl. So. St. 350; Porter & Coulter, Syn. Fl. Colo. 110; 
Hoizinger, Cont. U. S. Nat. Herb. 1: 170. Not L. 
P. nutans Walt. acc. to Nees, Linnaea, 6: 463 ; Don, Gard. Dict. 
A: A1 Wale Rep. 3) 27; Roem: & Sch. Syst 4: 68r. Not 
Gmelin. 
P. Pennsylvamca Willd. acc. Nees. Linnaea, 6: 463. 1831. 
Hook. Fl Bor. Am. 2: 90. 1834. Not L. 
P. Virginica Gray, Proc. Am. Acad. 10: 65. 1874. 
P. Fortuane Gray, Syn. Fl 2: part 1, 235. 1878. Coult. 
Man. Rocky Mts. 270; Cont. U. S. Nat. Herb. 2: 300; Wats. & 
Coult. in Gray, Man. Ed. 6, 375. Not Mill. 
Perennial from a slender creeping rootstock, 17—1 m. tall, 
at first erect, later generally decumbent and spreading, viscid and 
glandular, and villous with long spreading jointed flat hairs ; leaves 
large, blade generally over 5 cm., generally broadly cordate, often 
acute but very rarely with an acumination, thick, more or less sin- 
uately toothed, or sometimes subentire ; calyx long- villous; lobes 
triangular, generally shorter than the tube; corolla 1 14-2 cm. in 
diameter; anthers generally yellow; berry yellow. 
P. heterophylla grows most commonly in rich soil, especially 
where the surface has been disturbed in some way, as for instance 
in fields, on road banks and rubbish heaps. Its range is from 
New Brunswick and Saskatchewan to Colorado, Texas and Florida, 
but it is most common in the Upper Mississippi Valley. A few 
specimens have also been collected in California. Specimens from 
over 100 localities have been examined. These show that it is 
nearly impossible to characterize any good varieties, as the species 
is very variable and the different forms grade into each other. 
In shaded places, as, for instance, among bushes, it often be- 
comes upright, nearly smooth, scarcely at all viscid, and with large 
and thin leaves. The author has described it as var. umbrosa,* 
but it scarcely deserves a varietal rank. A few of the specimens 
represented by this form are: 
Nebraska : P. A. Rydberg, no. 1398, 1893; Smith & Pound 
No. 78, 1892; Le Roy ; Hayden, no. 242, in part, 1854. 
Illinois: H F. Jaeger. 
Jowa: Hitchcock, 1889. 
Texas: Bigelow (Wipple’s Exp.). 
*Cont. U. S. Nat. Herb. 3: 172. 1895. 
