This genus consists of rosette-forming perennial plants found in arid, rocky regions of the Mediterranean and western Asia. Commonly cultivated as rock garden specimens, they feature slender, green, hairy leaves. Their short stems support elongated, drooping, tubular flowers that can be pink, yellow, red, or white.

Onosma

Onosma aff. isaurica

Onosma albopilosa

Onosma alborosea is a perennial that retains its foliage throughout the year, growing to a height of approximately 25 cm. Its leaves are oblong or lance-shaped, featuring a grey-green hue and bristly texture. During the summer months, this plant produces clusters of tubular white blossoms that gradually transition to shades of pink and purple as they age, all held on short stems.

Onosma alborosea

Onosma angustifolia Lehm.

Onosma araratica

Onosma arenaria

Onosma armena

Onosma atrocyaneum

Onosma aucheriana

Onosma bourgaei

Onosma bubanii

Onosma caucasica

Onosma cinerea

Onosma conferta

Onosma craeteosum

Onosma dichroanthum

Onosma echinata Desf.

Onosma echioides

Onosma echioides subsp. dalmatica

Onosma emodi Wall.

Onosma erecta

Onosma erectum

Onosma frutescens

Onosma graeca

Onosma greaca Boiss.

Onosma helvetica

Onosma helvetica subsp. tridentina

Onosma montana

Onosma nana

Onosma nana white

Onosma paniculatum Bureau & Franch.

Onosma polyphylla

Onosma pyramidalis

Onosma rascheyana Boiss.

Onosma rigida

Onosma rutila

Onosma sericea

Onosma sinicum

Onosma stellulata

Onosma syriacum Boiss.

Onosma taurica is an evergreen perennial that can reach heights of up to 50 cm when in bloom. The foliage consists of narrow leaves that are spoon-shaped near the base and linear along the stems, all coated with fine silvery hairs. From late spring to early summer, it produces clusters of pendulous, tubular flowers in shades of cream or pale yellow on upright stems.