Polymnia uvedalia L.

Polymnia uvedalia plant

Family - Asteraceae

Stems - No info. yet.

Polymnia uvedalia stem

Leaves - No info. yet.

Polymnia uvedalia leavesArrow shows tapering leaf blade tissue.

Polymnia canadensis leavesPolymnia canadensis leaf (note the naked petiole).

Inflorescence - No info. yet.

Involucre -No info. yet.

Polymnia uvedalia involucreInvolucre.

Ray flowers - No info. yet.

Disk flowers - No info. yet.

Polymnia uvedalia flowers

Flowering - July - September.

Habitat - Low woods, rich woods, alluvial thickets, base of bluffs.

Origin - Native to U.S.

Other info. - This showy species can be found mainly in the Ozark region of Missouri but is also found in a few counties along the Missouri river. This plant is easy to identify in the field because of its opposite leaves, which have tapering blade tissue along the petioles, and its yellow ray flowers. Another species, P. canadensis L., is similar vegetatively but has leaves which do not taper at the base. The flowers of P. canadensis have small white ray ligules also.
P. uvedalia grows easily from seed and would make a great specimen plant in cultivation.

Photographs taken in the Ozark Scenic Riverways, 8-17-03.