Brickellia grandiflora (Hook.) Nutt.

Tassel Flower

Brickellia grandiflora plant

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.

Brickellia_grandiflora_leavesStem and leaves.

Brickellia_grandiflora_leafLeaf adaxial.

Inflorescence - Small panicles at branch tips, heads usually nodding. Heads discoid.

Brickellia_grandiflora_inflorescenceInflorescence.

Involucre - 7-12 mm long, cylindrical or narrowly bell shaped, with numerous phyllaries in multiple series including a short outer series.

Brickellia_grandiflora_involucreInvolucres 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.

Brickellia_grandiflora_floretsFlorets.

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).



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