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Family: boraginaceae
Common name(s): Hound's Tongue
Hardiness ratings: USDA zone 4 - 9 
General resources
Links for Cynoglossum officinale
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-9)
 (11 photos)
- Garden.org - Community-assembled plant profile (17 photos)
- Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (8 photos)
- Ontario Rock Garden Society - Germination information (use search on page to find this taxon)
- Southwest Colorado Wildflowers - Photos and botanical information about the species/genus. (2 photos)
- Turner Photographics - Profile of wildflower of the US Pacific Northwest, with botanical description, habitat and distribution, and photo gallery.
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