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Family: apiaceae
Common name(s): Rangers Buttons
Hardiness ratings: USDA zone 5 - 8~10 
General resources
Links for Sphenosciadium capitellatum
- Annie's Annuals - Catalog page with photo, basic horticultural information, and noteworthy features. (zone 5-10)
 (2 photos)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 5-8a)
- Garden.org - Community-assembled plant profile (2 photos)
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation.
- Turner Photographics - Profile of wildflower of the US Pacific Northwest, with botanical description, habitat and distribution, and photo gallery.
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