| Family | SAXIFRAGACEAE |
| Genus species | Boykinia major A.Gray |
| Synonyms | Therofon majus (A.Gray) Kuntze |
| Habitat | thickets and woods |
| Altitude | 200-2200m |
| Description | leaves 10-20cm wide, orbiculate to renirom, 5-7-lobate, lobes incised and dentate, dark green, flowers small in compact corymb |
| Size | 50-130cm |
| Color | white |
| Bloom | summer, autumn |
| Ca | - |
| Type | tuft |
| Cultivation | cold, shady site with a humous, moist soil alpine house, moist, humous soil, shade |
| Propagation | seed in spring, barely covered, germ. 3-6 months, 16-18°C division in early spring |
| Territory |
Northern America
Northwestern U.S.A. (Idaho , Montana , Oregon ) Southwestern U.S.A. (California) |
| Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
| Comments | SAXIFRAGACEAE
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