| Family | BRASSICACEAE |
| Genus species | Boechera horizontalis (Greene) Windham & Al-Shehbaz |
| Bibliography | Harvard Pap. Bot. 11: 266 (2007) |
| Native Range | s. Oregon |
| Primary Biome | Temperate |
| Habitat | rocky slopes |
| Description | lower leaves narrowly oblanceolate, entire, petiolate, ciliate, densely pubescent, stem leaves numerous, glabrous, flowers 5-30 in raceme, sepals pubescent |
| Size | 10-35cm |
| Color | lavender-blue, purple |
| Bloom | summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1 month, 10-16°C cuttings in late summer |
| Synonyms | Arabis horizontalis Greene Arabis suffrutescens var. horizontalis (Greene) Rollins |
| Territory | 7 Northern America 73 Northwestern U.S.A. (ORE Oregon) |