- Native Vegetation Enhancement
- Wild Ones Handbook
- Homeowners' Resources
- Landscaping Naturally (video)
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Green Landscaping: Greenacres
Native Plants of the Great Lakes
North Branch Restoration Project Seed Book
Penstemon Calycosus / Family: Scrophulariaceae
Smooth Beard Tongue, Swink/Wilhelm # 7
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FLOWERING: Mid-June through July
SEED TIMING: Mid-September to Mid-October
HABITAT: Open savanna and prairies
DIAGNOSTIC FEATURES: 2 - 4 feet high. Thick, smooth opposite leaves. White or faintly pink tinged tube-shaped horizontal blossoms, like musical horns facing out from the stem.
TO PICK: Many, shiny, oval, brown, large seed capsules on each stalk, each containing many small seeds. Pick when brown. Capsules emit an odor similar to dirty socks.