Brotherhood Revolutionary Early flowers with hollow stems Prominent Articulation Tariff
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Plant with a thick, hollow stem, heart to kidney-shaped, dark green, glossy leaves and glossy yolk yellow marigold flowers. Marsh marigold Stock Photo - Alamy
Eutrochium fistulosum (Hollow Joe Pye Weed, Hollow-stemmed Joe-pye-weed, Joe-Pye-Weed, Purple Thoroughwort, Queen of the Meadow, Trumpetweed) | North Carolina Extension Gardener Plant Toolbox
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Eutrochium fistulosum (hollow Joe-Pye weed): Go Botany