Boltonia asteroides var. glastifolia (digital photographs taken by Nathan Howell; illustration from United States Department of Agriculture, Natural Resource Conservation Service PLANTS Database / United States Department of Agriculture, Natural Resource Conservation Service 2015)
Figure 114a.
Specimen: Howell LAWA-158 (NCSC)
Figure 114b.
Illustration
Figure 114c.
Stem and leaf
Figure 114d.
Radiate head