Euphorbia caerulescens (Blue Euphorbia), also known as Euphorbia coerulescens, is a succulent shrub with numerous erect stems with edges…
Meaning: Darkish green or blue; cerulean
Derivation: Latin adjective
Whereas the generic name must be unique, there are often two or more genera with the same specific epithet. The same epithet can also be used within a species for subspecies, varieties, forms, and cultivars.
Here is a full list of succulents with this epithet. Click on the photo or the name of the plant for which you wish to see further information.