A perennial of the Primulaceae family, native to the mountains of Iran, where it grows on limestone cliffs and rocky walls with very sparse vegetation, at high altitude. Its epithet bryoides — "resembling moss" — perfectly describes its habit: the cushion, extremely tight and hard, is composed of tiny interlocking rosettes whose scaly and leathery leaves evoke more a compact moss cushion or a small selaginella than a flowering plant.
The branches are short, woody at the base, ending in rosettes of very small, dark green, oval-lanceolate leaves with a slightly rough surface. The whole forms a low and rigid cushion, a few centimeters in diameter, with very slow growth.
The flowers, solitary or in very small numbers per rosette, are borne directly at the cushion level on very short peduncles. They feature five pink to bright pink-lilac petals, with a central white eye bordered with burgundy, creating a delicate and contrasting effect against the dark green foliage.
In its natural habitat, flowering extends from April to June depending on the altitude. In cultivation, it generally occurs in March-April.
Among the most demanding species of the genus, reserved for experienced growers: ultra-drained substrate with a mineral dominance, absolute protection against any stagnant humidity in winter, good light and permanent ventilation. Cultivation in a terracotta pot in a cold alpine greenhouse is almost essential.