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Family: cactaceae
Common name(s): Golden barrel cactus
Hardiness ratings: USDA zone 9 - 11~12 
General resources
Links for Echinocactus grusonii
- BBC Gardening - Plant profile with horticultural details and garden uses.
 (1 photo)
- Cal's Plant of the Week - Profile for plant, primarily relating to pot culture, with notes on culture and propagation. (zone 9-12) (1 photo)
- Central Texas Gardener - Plant of the week profile with photo and cultural information.
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 9-11) (62 photos)
- Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 9) (2 photos)
- Garden.org - Community-assembled plant profile (25 photos)
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