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Family: asteraceae
Common name(s): swamp sunflower; narrow-leaf sunflower
Hardiness ratings: USDA zone 5~6 - 9 
General resources
Links for Helianthus angustifolius
- Alabama Plants - Description and photographs of botanical features, with notes about habitat and native status.
 (8 photos)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 6-9a) (12 photos)
- Digging Dog Nursery - Catalog page with descriptive information (additional pages for other varieties) (zone 5) (1 photo). Also a page for 'Gold Lace'.
- Floridata - Illustrated informative profile page with notes on culture, usage, and noteworthy features. (zone 6-9) (2 photos)
- Garden.org - Community-assembled plant profile (24 photos)
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (44 photos)
- Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (10 photos)
- Native Plant Society of Texas - Plant profile with basic characteristics, some horticultural information, and a distribution map within Texas. (2 photos)
- North Carolina State University factsheet - Plant profile with horticultural details and comments (zone 5-9) (11 photos)
- Plant Delights Nursery: Helianthus angustifolius 'First Light' - Catalog page with photo, horticultural basics, and descriptive blurb. (zone 5-9) (1 photo). Also a page for 'Low Down'.
- Rob's Plants: Helianthus angustifolius 'First Light' - Plant profile with basic horticultural information and often personal observations. (zone 5-9) (1 photo)
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