Euphorbia stenoclada (Stiver Thicket) is a much-branched succulent shrub or small tree with leafless branches that bear alternate spines…
Derivation: Compound of two Ancient Greek words, the adjective "stenós," meaning "narrow, tight," and the noun "kládos," meaning "branch; young slip or shoot of a tree, such as is broken off for grafting."
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, and forms.
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.