Does the streambank willow have a simple or compund leaf?

The leaves of streambank willow are typically elongated but may also be round to oval, frequently with a serrated margin.

All the buds are lateral; no absolutely terminal bud is ever formed.

The buds are covered by a single scale, enclosing at its base two minute opposite buds, alternately arranged, with two, small, scale-like, fugacious, opposite leaves.

The leaves are SIMPLE A and alternate, except the first pair which fall when about an inch long.

They are simple, feather-veined, and typically linear-lanceolate. Usually they are serrate, rounded at base, acute or acuminate.

The leaf petioles are short, the stipules often very conspicuous, looking like tiny round leaves and sometimes remaining for half the summer.

On some species, however, they are small, inconspicuous, and fugacious (soon falling). In color the leaves show a great variety of greens, ranging from yellowish to bluish.

link below has leaves of streambank willow leaves

http://www.ruffordpark.leeds.sch.uk/homedir/images...

http://www.pocd.org/pacific_willow.jpg

I don't know of a willow with the common name "streambank willow", but willows have simple leaves, usually slender.