| Family | CISTACEAE |
| Genus species | Helianthemum asperum Lag.ex Dunal |
| Synonyms | Helianthemum polymorphum Pourr. ex Willk. |
| Habitat | dry, rocky slopes |
| Altitude | 0-1200m |
| Description | leaves 1-2cm, ovate-oblong to oblong-linear, adaxially scabrous hirsute, green, abaxially grey tomentose, flowers 6-9 in cymes, corolla 2cm across |
| Size | 10-35cm |
| Color | white |
| Bloom | spring |
| Ca | + |
| Type | lax shrub |
| Cultivation | sunny, dry, rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C cuttings in late summer |
| Territory |
Europe
Southwestern Europe (Spain) |
| Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
| Comments | CISTACEAE
asperum scariosum (Pau & Sennen) G.López, Anales Jard. Bot. Madrid 50(1): 44 (1992)
asperum willkommii Mateo & M.B.Crespo, Flora Montiberica 4: 15 (1996)
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