Salix eriocephala (Heart-leaved willow)

Salix acutidens Rydb.
Salix angustata Pursh
Salix cordata Muhl.， non Michx.， nom. illeg.
Salix cordata Michx. var. abrasa Fernald
Salix cordata Muhl. var. angustata (Pursh) Andersson
Salix cordata Muhl. var. missouriensis (Bebb) Mack. & Bush
Salix cordata Muhl. ssp. rigida (Muhl.) Andersson
Salix cordata Michx. var. rigida (Muhl.) B. Boivin
Salix cordata Muhl. var. rigida (Muhl.) Andersson， nom. illeg.
Salix cordata Muhl. var. rigida (Muhl.) Carey
Salix cordata Muhl. var. vestita (Andersson) Bebb， nom. dub.
Salix discolor Muhl. var. eriocephala (Michx.) Andersson
Salix missouriensis Bebb
Salix myricoides Muhl. var. angustata (Pursh) Dippel
Salix myricoides Muhl. var. cordata (Muhl.) Dippel
Salix myricoides Muhl. var. rigida (Muhl.) Dippel
Salix rigida Muhl.
Salix rigida Muhl. var. angustata (Pursh) Fernald
Salix rigida Muhl. var. vestita (Andersson) C.R. Ball
Salix torreyana Barratt

Kingdom	Plantae	Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Rosidae	Roses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
Order	Malpighiales	A broad group encompassing 16,000 species
Family	Salicaceae	Willow family
Genus	Salix	Latin for “willow,” meaning “to leap or spring,” a reference to its fast growth
Species	eriocephala	Woolly-headed