Order: Asterales
Family: Asteraceae
Genus: Silphium
Characteristics
herbaceous perennial plants .5-4m tall
yellow flower heads
light green
opposite leaves are up to 5" long, lanceolate to ovate, stiff small hairs on both sides
Leaves may also have teeth
flowers look like mini sunflowers
seeds: large, flat, wind carried
Adaptations
roots, taproots and short rhizomes, forming clumps
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