Joseph Barratt

Salix scouleriana (Scouler's willow; syn. S. brachystachys Benth., S. capreoides Anderss., S. flavescens Nutt., S. nuttallii Sarg., S. stagnalis Nutt.) is a species of willow native to northwestern North America. Other names occasionally used include fire willow, Nuttall willow, mountain willow, and black willow.

Salix hookeriana is a species of willow known by the common names dune willow, coastal willow, and Hooker's willow.

Salix drummondiana is a species of willow known by the common name Drummond's willow. It is native to western North America from Yukon and the Northwest Territories in the north to California and New Mexico in the south. It is a resident of moist mountain habitats, including forests, riverbanks, and floodplains.

Eutrochium fistulosum (Eupatorium fistulosum), also called hollow Joe-Pye weed, trumpetweed, or purple thoroughwort, is a perennial North American flowering plant in the family Asteraceae. It is native to southern Canada and throughout the eastern and south central United States from Maine west to Ontario, Wisconsin, and Missouri and south as far as Florida and Texas. The specific name fistulosum refers to the tubular stem; see fistula. Eutrochium fistulosum is a herbaceous perennial plant sometimes as much as 350 cm (140 in; 11 ft 6 in) tall. It is found in moist, rich soil alongside ditches