https://commons.wikimedia.org/wiki/File:Symphyotrichum_prenanthoides_NRCS-2.jpg
1280px-Symphyotrichum_prenanthoides_NRCS-2
Lanceolate leaves with contracted to broadly winged,
clasping petioles of native Symphyotrichum
prenanthoides (crooked-stem aster).
Photo courtesy of Robert H. Mohlenbrock. USDA NRCS
