About Sabulina rubella (Wahlenb.) Dillenb. & Kadereit
Sabulina rubella (Wahlenb.) Dillenb. & Kadereit is a small, mat-forming perennial herb that grows as a low, tight clump covered in hairy, glandular plant tissue. Its green leaves are three-veined, either needlelike or flattened, and reach no more than 1 centimeter long and 1 millimeter wide. The plant blooms in summer, producing tiny flowers with pointed sepals under 4 millimeters long, plus five white petals that are roughly the same length as the sepals or slightly smaller. It has a circumboreal distribution, found across the northernmost regions of the Northern Hemisphere. Its range extends from Arctic tundra above the Arctic Circle into alpine climates of mountainous areas in temperate Eurasia and North America. It grows in rocky, moist, often barren habitats, including gravelly, sparsely vegetated slopes that contain very little organic matter. It is a calciphile, meaning it grows in calcareous substrates such as soils rich in decomposed limestone.
