276 WOODY PLANTS OF MASSACHUSETTS. 
Stem brown, or, on older stalks, ashy-gray or clay-colored. 
Branches greenish brown, or bright green, or bronze yellow, 
smooth ; recent shoots varying, on the same stem, from bright 
to faint yellow, dusty or downy white, and apple-green. Buds 
yellow, tipped with reddish, downy. Leaves usually some- 
what crowded, and then very cordate at base, at other times 
scattered, and rounded at base; folded back, in the bud, cov- 
ered with silky pubescence when young, smooth above, glau- 
cous beneath when mature; flat, waving, or recurved, ovate- 
lanceolate or broad-lanceolate, tapermg to a somewhat long 
point. Male aments an inch long, female, one and a half 
inches. 
This willow is found on the streams of Canada as far as the 
Saskatchawan. It abounds on the Connecticut, Nashua, and 
other rivers of this State, and is found in New York, and as 
far south as Virginia, presenting some remarkable varicties. 
The roots form large, tangled masses, on the sides of streams, 
and are much larger than the stems proceeding from them. 
Dr. Barratt says 1t furnishes excellent twigs for basket-work. 
Sp. 20. Tse Stirr-teavep Wittow. S. rigida. Muhlenberg. 
Leaf figured in Annals of Botany, II, Plate 5, fig. 4. 
Leaves oblong-lanceolate, acuminate, subcordate at base, stiff, smooth, 
sharply serrate, the lower serrature elongate, with a cartilaginous point; foot- 
stalks rather long, hairy ; stipules large, cordate, obtuse, glandular-serrate ; 
aments expanding with the leaves; stamens about three; scales lanceolate, 
black, woolly; ovaries on long stalks, lanceolate, smooth; style very short ; 
stigmas bipartite. Wul/denow, IV, 667. Pursh, II, 615. Hooker, Fl. Bor. 
Am., Il, 149. Muhlenberg, Ann. of Bot., TI, 64. 
A more vigorous or coarser looking plant than the last, re- 
sembling it very much, but distmguished by the length of its 
hairy petioles, the coarseness of the serration of the leaves, and 
the prolongation and stiffness of the lower scrrature. 
It is a handsome small tree, sometimes fifteen feet high. 
The stem is grayish, rather smooth, erect and slender, or pros- 
trate along the banks of streams, where its large roots, with 
those of S. corddta, 8. lucida, and S. nigra, form dense and 
strong bulwarks against the action of the stream. The branches 
