Onosma

Onosma is a genus of flowering plants in the family Boraginaceae. They are native to the Mediterranean and western Asia. They grow in dry, sunny habitats with rocky, sandy substrates.^[2] Some are popular as rock garden plants.^[3]

Onosma
Onosma simplicissima ssp. volgensis
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Boraginales
Family:	Boraginaceae
Subfamily:	Boraginoideae
Genus:	Onosma L.
Type species
Onosma echioides L.
Species[1]
235; see text
Synonyms[1]
Choriantha Riedl (1961) Colsmannia Lehm. (1814) Sava Adans. (1763)

Estimates of the number of species in the genus range from about 85^[4] or 88^[5] to 150.^[2][6] As of July 2024 Plants of the World Online accepts 235 species.^[1] The systematics are unclear and the group is in need of study and revision.^[2]

Onosma alborosea

Onosma nana

Onosma polychroma

Onosma visianii

Selected species

As of July 2024, Plants of the World Online accepts 235 species.^[1] Selected species include:

• Onosma adenopus
• Onosma affinis
• Onosma aksoyii^[5]
• Onosma alborosea
• Onosma album
• Onosma apiculatum
• Onosma arenaria
• Onosma atila-ocakii^[2]
• Onosma aucheranum
• Onosma beyazoglui^[6]
• Onosma borysthenica
• Onosma bourgaei
• Onosma bracteatum
• Onosma bubanii
• Onosma bulbotrichum
• Onosma canescens
• Onosma cassium
• Onosma caucasica
• Onosma caerulescens
• Onosma cingulatum
• Onosma confertum
• Onosma decastichum
• Onosma dalmatica
• Onosma dicedens
• Onosma dichroantha
• Onosma echioides
• Onosma elegantissimum
• Onosma epirotica^[7]
• Onosma erectum
• Onosma exsertum
• Onosma farreri
• Onosma fastigiata
• Onosma fistulosum
• Onosma frutescens
• Onosma fruticosa
• Onosma gigantea
• Onosma glomeratum
• Onosma glmelinii
• Onosma graeca
• Onosma helvetica
• Onosma hispidum
• Onosma hookeri
• Onosma irritans
• Onosma isauricum
• Onosma javorkae
• Onosma kaheirei
• Onosma lijiangense
• Onosma liui
• Onosma luquanense
• Onosma maaikangense
• Onosma macrochaeta
• Onosma mertensioides
• Onosma molle
• Onosma multiramaosum
• Onosma nangqenense
• Onosma nanum
• Onosma orientalis
• Onosma paniculatum
• Onosma polioxanthum
• Onosma polychroma
• Onosma pseudoarenaria
• Onosma rascheyana
• Onosma rigida
• Onosma setosa
• Onosma simplicissimum
• Onosma sinicum
• Onosma stelluata
• Onosma straussii
• Onosma stridii
• Onosma taurica
• Onosma tenuiflora
• Onosma tornensis
• Onosma tricerosperma
• Onosma troodi
• Onosma visianii
• Onosma waddellii
• Onosma waltonii
• Onosma wardii
• Onosma yajiangense
• Onosma zayueense