What does euphorbia mean?
A euphorbia is any member of Euphorbia, one of the largest genera of flowering plants, embracing well over two thousand species that range from humble annual weeds to towering, cactus-like succulents. Familiar examples include the poinsettia, the crown-of-thorns, and the cushion spurge prized by gardeners for its luminous yellow-green bracts. Because the genus spans such wildly different forms, gardeners value euphorbias for their architectural shapes, drought tolerance, and long-lasting color rather than conventional petals — what look like flowers are usually modified leaves called bracts. The word appears mainly in horticultural and botanical writing and carries no strong connotation beyond its association with striking, sometimes alien-looking foliage. One caution recurs in any discussion of euphorbias: their milky white sap can irritate skin and eyes, so gloves are advised when handling them.
nounA plant of the large and diverse genus Euphorbia, commonly known as spurges, which includes succulents such as the poinsettia and crown-of-thorns as well as herbaceous weeds.
- Any plant belonging to the genus Euphorbia, a very large genus of flowering plants in the spurge family that ranges from tiny herbs to tree-like succulents and cactus-like forms.
- Used more loosely in gardening to refer collectively to spurges cultivated for their striking foliage or showy bracts.
"The dry border was anchored by sculptural euphorbias whose acid-green flower heads glowed all spring."
"She planted euphorbias along the gravel path for their architectural stems and lime-green bracts."
"The greenhouse's most prized specimen was an African euphorbia that resembled a cactus but bore entirely different flowers."
The standard English plural simply adds -s. Avoid pseudo-Latin plurals; 'euphorbiae' is not established usage.
"The nursery stocked dozens of hardy euphorbias suited to dry, sunny borders."
The poinsettia on your windowsill every December is actually a euphorbia — a plant genus named after a 2,000-year-old Greek royal physician.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of euphorbia
Euphorbia derives from New Latin, coined after Euphorbos, a Greek physician at the court of Juba II, king of Mauretania in the early first century AD, who reportedly used a spurge species medicinally. The name entered scientific Latin when Linnaeus formalized it as the genus name in the eighteenth century, and English adopted it shortly thereafter. The underlying Greek elements are eu-, meaning 'good' or 'well', and a root related to pherein, 'to bear' or 'to feed', making the personal name Euphorbos itself a compound of these ancient parts. Cognates sharing the same Greek roots include euphoria, metaphor, and phosphorus.
How euphorbia is actually used
Euphorbia is chiefly used in botanical and horticultural contexts, so it reads as formal or specialist rather than everyday vocabulary. In casual gardening speech the common name 'spurge' is often preferred. The plural is regularly formed as 'euphorbias'; Latinized plurals are not used. Note that many euphorbias exude a milky sap that can irritate skin and eyes, a point often mentioned in practical writing about the genus.
Easily confused with euphorbia
Euphorbia is a genus of flowering plants, while euphoria is an intense feeling of happiness or well-being.