Symphyotrichum novi-belgii var. villicaule
Phytologia 82: 138. 1997.
Plants relatively slender. Stems uniformly and densely hirsute (at least proximally). Leaf-blades lanceolate to linear-lanceolate, 7–9 times as long as wide, bases clasping. 2n = 48.
Phenology: Flowering Aug–Sep.
Habitat: Usually open, mostly calcareous, gravelly or rocky stream shores
Elevation: 0–100 m
N.B., Que., Maine.
"thick" is not a number.