The capitula, or flower heads, are arranged in relatively flat-topped corymbiform arrays. The capitula number anywhere from 4 to 50 and up to 100 or more in exceptional cases. The peduncles, i.e. the flower stalks, are up to in length and are densely covered with non-glandular hairs. Bracts, modified leaves that appear at the axil of a peduncle, are typically absent, though in some cases up to two are present. The involucres, which are the whorls of small, scale-like modified leaves that appear at the base of the capitulum, are in between cylindric and campanulate (i.e. bell-shaped) in shape and measure long, making them much shorter than the pappi.