Thursday, 23 September 2021

Euphorbia peplus 南歐大戟, 荸艾類大戟, 小大戟

Common name: Petty Spurge
Scientific name: Euphorbia peplus 南歐大戟, 荸艾類大戟, 小大戟
Genus: Euphorbia 大戟屬
Family: Euphorbiaceae 大戟科, spurge family

Origin: Archaeophyte (established before 1500 AD.) It has a European Southern-temperate distribution.

Date: 21st Sept


An erect plant, can reach up to 30 cm.


Stem is glabrous. The leaves near the base of the stem is alternate, short-stalked.


A young plant, but still has a cyathium (the condensed inflorescence in Euphorbia) at the top of the stem. Leaves are ovate-obovate and short-stalked.


umbel 3-rayed

Just below each cyathium is a pair of leaf-like bracts (small greenish-yellow structures in the above photo)


A cyathium (the condensed inflorescence in Euphorbia) with four crescent-shaped glands (like horns of a cow)

The female flower has already changed to a capsule hanging down from the cyathium.

Within the cyathium, two stamens, each with two yellow anthers, which are actually two male flowers are found. One female flower (changing to a capsule?) with three styles is also found hanging down from the cyathium.


glabrous, winged capsule

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