Native to (or naturalized in) Oregon:
- Broadleaf evergreen shrub, to 12 ft (4 m) high, rounded, bushy. Leaves leathery, tough, variable in form, often somewhat rectangular with a thorn on each corner and one at the apex, 4-10 cm long, dull green. Flowers white, 4-parted. Fruit red, spherical, 8-10 mm.
- Sun to part shade
- Hardy to USDA Zone (5)6 Native to China
Many cultivar, over 80 are listed by Galle (1997), the most common are:
- ‘Burfordii’ - to 10-25 ft (3-8 m) high, dense, rounded, lustrous dark green leaves with one or two spines, red fruit.
- ‘Dazzler’ - upright, to 10 ft (3 m), five-spined leaf, abundant red fruit.
- ‘Dwarf Burford’ - compact form, to 6 ft (1.8 m ) or more, leaves usually with a single spine, fruits less than ‘Burfordii’, fruits dark red.
- ‘Rotunda’ - compact, mounded, to 4 ft high, double in width, leaves usually with 5 spines, sets little or no fruit.
- cornuta: horned, referring to leaf spines