Bailey & Bailey: Woody Plants of National Parks 49 



23. Tweedy Willow (Sal'ix T weedy i Ball). — Leaves smooth, glandular, 

 whitish below; catkins not stalked; scales brown; capsules smooth, the styles 

 I1/2 to 21/2 mm. long. (Syn. S. Barrattiana Hook. var. Tweedyi Bebb.). 



Occurrence. — Yellowstone; upper end of Slough Creek, grand teton : head of 

 Death Canyon. 9,000 feet. 



24. Barclay Willow {Salix Bardayi Anderss.). — Bushy shrub 3 to 9 

 feet high, found along streams or in moist mountain meadows; twigs dark 

 brown, finely hairy or nearly smooth; leaves oval or elliptic to reverse-lance- 

 shaped, 1 to 2iy4 inches long, green above, whitish below, smooth on both 

 sides or sometimes thinly hairy above; catkins about % to II/4 inches long, 

 on leafy stalks ^ to \y^ inches long, appearing with the leaves; scales per- 

 sistent, brownish, long-hairy; stamens 2; capsules usually not hairy or some- 

 times thinly so, on stalks about 1 mm. long, the styles 1 to l^^ "im. long. 

 This species furnishes good forage for animals. 



Occurrence. — OLYMPIC, 3,500 to 5,000 feet: Boulder Creek above Olympic Hot 

 Springs; Low Divide. MOUNT RAINIER, 4,000 to 6,000 feet: Reflection Lake; Paradise 

 Valley; Mazama Ridge; Mowich Lake. YELLOWSTONE: Mammoth; Spring Creek; 

 Old Faithful; Soda Butte Creek; De Lacy Creek; Gardiner. 



25. False Mountain Willow (Salix pseudomonticola Ball). — Shrub 

 3 to 10 feet high; branchlets yellowish to red or brown, becoming shiny; leaves 

 elliptic to egg-shaped, I1/2 to 3 inches long, pointed at the tip, rounded to 

 heart-shaped at base, smooth and green above, whitish below, the margins 

 coarsely glandular-toothed or not toothed; catkins appearing with the leaves, 

 scarcely stalked but leafy-bracted at base; scales brown, long-hairy; stamens 2, 

 the filaments distinct, not hairy; capsules smooth, on stalks 1 to 1^2 mm. long, 

 the styles about 1 mm. long or more. 



Occurrence. — glacier, on the east side: Blackfeet Highway overlooking Lower 

 Two- Medicine Lake. YELLOWSTONE: Ivy Springs near Junction Butte; Mammoth. 

 ROCKY MOUNTAIN. 



26. Piper Willow {Salix Piper i Bebb). — Erect shrub 9 to 18 feet high, 

 occurring along streams; branchlets stout, smooth, shining; leaves thickish, 

 broadly elliptic to reverse-lance-shaped, 2^/2 to 5 inches long, dark green and 

 shining above, whitish below, the margins finely toothed or not toothed; 

 catkins appearing with the leaves or before, naked or leafy-bracted at base, 

 1 to 4 inches long, not stalked; scales brown, hairy; stamens 2, the filaments 

 joined at base, not hairy; capsules smooth, on stalks 1 mm. long, the styles 

 about 1 mm. long. 



Occurrence. — OLYMPIC. MOUNT rainier. 



27. Rocky Mountain Willow (Salix monticola Bebb). — Shrub 6 to 

 18 feet high with smooth reddish-brown branchlets; leaves elliptic-oblong to 

 broadly reverse-lance-shaped, 1 1/2 to 3 inches long, hairy at least below, some- 

 times sparingly so; catkins borne on short leafy stalks; capsules smooth, the 

 styles 1 mm. or more long. 



Occurrence. — ROCKY mountain, common, 7,500 to 9,000 feet: Estes Park. 



