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Family: plantaginaceae
Common name(s): pine-leaf penstemon
Hardiness ratings: USDA zone 4 - 9 
General resources
Links for Penstemon pinifolius
- American Penstemon Society - Detailed description of the species' botanical characteristics, habitat, and native range.
 (1 photo)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-9) (5 photos)
- Garden.org - Community-assembled plant profile (4 varieties in database) (13 photos)
- Heritage Perennials - Profile with description and horticultural details. (zone 4-9) (1 photo)
- Iris' Garden - Gardener in the Netherlands presents a photo of this plant, with basic horticultural information. (1 photo)
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (11 photos)
- Missouri Botanical Garden: Penstemon pinifolius 'Mersea Yellow' - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 4-9) (5 photos)
- NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (1 photo)
- Ontario Rock Garden Society - Plant of the month profile (4 photos)
- Ontario Rock Garden Society - Germination information (additional information for other varieties)
- Plant Delights Nursery - Catalog page with photo, horticultural basics, and descriptive blurb. (1 photo)
- Rob's Plants - Plant profile with basic horticultural information and often personal observations. Also seed germination records. (3 photos)
- Wild Ginger Farm - One of the plants featured on this specialty nursery's catalog page, with photo and brief description. (1 photo)
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