Brickellia grandiflora (Hook.) Nutt.
Family - Asteraceae
Stems - To 90 cm, sprawling to nearly erect, moderately to densely pubescent.
Leaves - Roughly triangular, bases cordate to truncate, margins scalloped, surfaces variously hairy and usually somewhat glandular.
Stem and leaves.
Inflorescence - Small panicles at branch tips, heads usually nodding. Heads discoid.
Involucre - 7-12 mm long, cylindrical or narrowly bell shaped, with numerous phyllaries in multiple series including a short outer series.
Involucres and disk corollas.
Florets - Disk florets 18-45. Corollas 6-8 mm, cream colored to pale yellow. Pappus bristles minutely barbed. Styles well exserted from corollas at anthesis.
Flowering - July - October.
Habitat - Bluff tops and ledges, glades, on calcareous substrates.
Origin - Native to the U.S.
Other info. - This is a delicately beautiful plant, fairly uncommon in Missouri. It is widely distributed in the western third of the U.S., with Missouri representing a small disjunct population and the plant's easternmost range. The common name derives from the numerous pendant styles, which give the heads a tassel-like appearance.
Photographs taken in Weldon Spring Conservation Area, St. Charles, MO, 10-15-2011 and 10-8-2012 (SRTurner).