Silphium compositum Michx. - Kidney-leaf Rosinweed

Silphium compositum plant

Family - Asteraceae

Stems:

Silphium compositum stem

Leaves:

Silphium compositum leaf

Silphium compositum leaf

Silphium compositum leaf

Inflorescence:

N/A

Involucre:

Silphium compositum involucre

Ray flowers:

Silphium compositum flowers

Disk flowers:

Silphium compositum disk

Flowering - July - September.

Habitat - Flatwoods, sandhills.

Origin - Native to North America.

Other information - This attractive species can be found mainly in the eastern half of Alabama. The plant cand be identified by its large basal rosette of leaves and tall flowering scaps. The leaves vary somewhat in amount of division. The flowering scapes grow to over 2m and bolt quickly at flowering time. This is a characteristic species of pine-flatwoods communities.
The genus name Silphium derives from the Greek "silphi(um)" meaning "a plant with medicinal properties." The name was originally given to some other resinous plant and was transferred to this genus by Linnaeus.
The species epithet compositum means "compound" referring to the divided basal leaves.

Alabama Distribution:

Silphium compositum map

Photographs taken at Fort Benning, GA., 8-11-05.


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