Description | Cup Plant (Silphium perfoliatum var. connatum) A variety of the more common and wide spread Cup Plant (S. perfoliatum). It has variously hairy stems and is only known from a few Mid-Atlantic states in the New River Valley. |
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Plant Type | Perennials Hardy, Wild Flowers |
Hardiness Zone | (5)6 |
Sunlight | full, mostly sunny |
Moisture | average, moist |
Soil & Site | average, moist |
Flowers | yellow daisy-like flowers are found on tall single scapes (flower stalks) |
Fruit | achene |
Leaves | opposite leaves, coarsely toothed, form a water reservoir where they join at the stem, two leaves join together around the stem (perfoliate) visited by birds and Hummingbirds. |
Stems | square, hairy |
Dimensions | 6 plus feet tall |
Native Site | Not as wide spread as Silphium perfoliatum found in a few Mid-Atlantic states in the New River Valley. |
Misc Facts | Species name refers to where the bases of two opposite leaves wrap completely around the stem. |
Author's Notes | Not a lot of data on this plant. Most searches will get Silphium perfoliatum not the variety connatum. |