| Scientific Name: | Epimedium x rubrum |
| Common Name: | barrenwort |
| Family Name: | Berberidaceae |
| Origin: | Garden origin |
| Hardiness Zone: | Zone 4: (-34 to -29 °C) |
| Plant Type: | Ground cover, Herbaceous perennial |
| Mature Size: | 0.2 - 0.4m x 0.3 - 0.6m (height x width) |
| Habit: | Horizontal, Spreading |
| Form: | Oval - horizontal |
| Texture: | Medium - fine |
| Landscape Uses: | Ground cover, Rock garden, Woodland margin |
| Exposure: | Part sun/part shade, Filtered shade |
| Soil or Media: | Humus rich, Well-drained |
| Leaves: | Compound, Basal, Soft flexible, Glabrous, Biternate, Ovate, Dentate, Spinose |
| Flowers: | Thyrse, Yellow, Red, Apr-May |
| Fruit: | Aborted (hybrids) or absent |
| Key ID Features: | |
| Deciduous perennial with rhizomes, 20-30cm tall; Leaves basal, biternate, leaflets pinnately compound, pinnae ovate, most blades 5-9cm long x 3-5cm wide, base cordate, reddish in spring and fall, margin spinose, petiolules 2-6cm long x ~1mm wide; flowers with 4 pink to red sepals , and 4 white to pale yellow petals, some cvs. short-spurred, Apr.-May. | |