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Chelone obliqua

Family: scrophulariaceae
Common name(s): Turtlehead
Hardiness ratings: USDA zone 3~5 - 9

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup

Links for Chelone obliqua

• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 5-9) (8 photos)
• Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 3) (1 photo)
• Garden.org - Community-assembled plant profile (2 varieties in database) (6 photos)
• Heritage Perennials: Chelone obliqua Alba - Profile with description and horticultural details. (additional pages for other varieties) (zone 3-9) (1 photo)
• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (13 photos)
• Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 5-9) (6 photos). Also pages for 'Ieniemienie' and 'Rosea'.
• Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (7 photos)
• Ontario Rock Garden Society - Germination information (use search on page to find this taxon)
• Plant Delights Nursery - Catalog page with photo, horticultural basics, and descriptive blurb. (additional pages for other varieties) (zone 4-9) (1 photo)

Chelone obliqua alba

Links

• Ontario Rock Garden Society - Germination information (use search on page to find this taxon)

Chelone obliqua var. erwiniae

Links

• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (6 photos)

Chelone obliqua var. obliqua

Common name(s): Purple Turtlehead, Red Turtlehead, Shellflower, Turtlehead
Hardiness ratings: USDA zone 5 - 9

Links

• North Carolina State University factsheet - Plant profile with horticultural details and comments (zone 5-9) (4 photos)

Chelone obliqua var. speciosa

Common name(s): Purple Turtlehead
Hardiness ratings: USDA zone 4~5 - 9

Links

• Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations. (2 photos)
• Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 5-9) (2 photos)
• North Carolina State University factsheet - Plant profile with horticultural details and comments (zone 4-9) (5 photos)
• Plant Delights Nursery - Catalog page with photo, horticultural basics, and descriptive blurb. (zone 4-9) (1 photo)