Silphium asteriscus var. asteriscus - Banner
Image Information
Location: Searcy County, Arkansas
Month of Photograph: May and July
Distribution Map: Silphium asteriscus - Distribution Map Spacer
USDA, NRCS. 2012. The PLANTS Database (http://plants.usda.gov, 16 January 2012). National Plant Data Team, Greensboro, NC 27401-4901 USA. Spacer Guests can be assured that there is established evidence that this plant has been found in all of the green filled counties of Arkansas. However, the white filled counties should not be interpreted as counties in which this plant does not grow. They should instead be interpreted as counties which lack officially sanction evidence of the plants presence there.

Family: Asteraceae

Flower, lateral view

Silphium asteriscus var. asteriscus - Flower Lateral View "
Not all images on this page were photographed on the same day or at the same location. The precise location and date that specific photographs were taken can be obtained by email.
Silphium asteriscus var. asteriscus - Flower Frontal View Flower, frontal view

 

Silphium asteriscus var. asteriscus - Flower Ventral ViewFlower, ventral view
Silphium asteriscus var. asteriscus - Flower Ventral ViewFlower, ventral view
Silphium asteriscus var. asteriscus - Flower Bud Ventral ViewFlower Bud, ventral view
Silphium asteriscus var. asteriscus - LeafLeaf
Silphium asteriscus var. asteriscus - Whole PlantWhole Plant

Silphium asteriscus var. asteriscus - Flower Bud Frontal View Flower Bud, frontal view
Silphium asteriscus var. asteriscus - HabitatHabitat
Silphium asteriscus var. asteriscus - Inflorescence Inflorescence
Silphium asteriscus var. asteriscus - Flower Lateral ViewFlower, lateral view
Silphium asteriscus var. asteriscus - Whole Plant Whole Plant
Stem
Silphium asteriscus var. asteriscus - Stem

Bract with "pustular-based, more-or-less spreading hairs" (Yatskievych, George)
Silphium asteriscus - Leaf

Bracts with pustular spreading hairs
Silphium asteriscus var. asteriscus - x

Flower, close
Silphium asteriscus var. asteriscus - Flower Close

Footnote: Yatskievych, George. Steyermark s Flora of Missouri,Volume 2. Saint Louis: Missouri Botanical Garden Press, 2006.