Family: Asteraceae

Scientific Name: Silphium integrifolium

Common Name: Rosin Weed

DescriptionA 2-6 foot tall prairie plant with large yellow daisy-like flower.
Plant TypeAll Plants, Wild Flowers
Sunlightfull
Moisturemoderately dry to average
Soil & Sitemoderately dry to average
Flowerspanicle flowers are found on short stalks on the top of the plant, July-August
Leavesvariable and coarse, usually opposite and maybe toothed or entire, sand paper texture
Stemsstout stem, usually covered with stiff hair, and short rhizomes
Rootstaproot
Dimensions2'-3' tall and one of the shorter Silphium, can form small thickets
Propagationeasy from seed
Misc FactsNorth American Prairies
Author's NotesThe foliage of this plant is variable. When I first saw a group of Rosin Weed, I thought there were a few different types of plants in the group. But they all turned out to be Rosin Weed.
Notes & Reference#09-The Prairie Garden (J. Robert Smith with Beatrice Smith), #56-Tall Grass Prairie Wildflowers (Doug Ladd), #224-Prairie Nursery web site (www.prairienursery.com)
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