Salix

In absence of more mature material showing more specifically distinct characteristics, I can only say that this could be Salix Wolfii Bebb var. idahoensis Ball, not S. Drummondiana which has glaucous twigs. The only character by which this specimen differs from #70-001, and which can be used for a decision between S. Wolfii and S. SCouleriana is in the relative lengths of the style and stigmas, and the interpretation of this is equivocal. I think both specimens are of the same species, whichever it it.CanadaBritish ColumbiaYoho National Parkbridge over Canada Brook, on old road to O'Hara road70-026 Foskettriver bank moistoccasionalto 4 feet high. Scales black, white long hairs. Twigs galbrous; reddish upper, yellowish lower on shrub. Very immature. Young twigs thinly puberulent. Young leaves, such as there are, are green and glabrous above, and silky-hairy over a green surface beneath. But it is unsafe to prognosticate characteristics of mature leaf from this. Stames 2, with glabrous filaments. Pediel ca. 0.4 mm long. Style 0.6 mm. Stigmas 0.3 mm