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Euphorbia as a small tree: Euphorbia dendroides. Euphorbia is a large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae.. Euphorbias range from tiny annual plants to large and long-lived trees, [2] with perhaps the tallest being Euphorbia ampliphylla at 30 m (98 ft) or more.
The catkin-like flowers appear in early spring before the leaves. Male and female flowers are borne separately on the same tree . The small 3-lobed capsules or schizocarps split into three equal indehiscent segments (mericarps or cocci) when ripe; on a warm day this splitting can sound like a distant fusillade of shots.
Two trees may grow to their mature size adjacent to each other and seemingly grow together or conjoin, demonstrating inosculation. These may be of the same species or even of different genera or families, depending on whether the two trees have become truly grafted together (once the cambium of two trees touches, they self-graft and grow together).
Euphorbia characias flowers. Euphorbiaceae (/ j uː ˈ f oʊ r b iː ˌ eɪ s i ˌ aɪ,-s iː ˌ iː /), the spurge family, is a large family of flowering plants.In English, they are also commonly called euphorbias, [2] which is also the name of the type genus of the family.
Euphorbia amygdaloides, the wood spurge, is a species of flowering plant in the family Euphorbiaceae, native to woodland locations in Europe, Turkey and the Caucasus. It is a bushy evergreen perennial , growing to a height of 80 cm (31 in), with dark green slightly hairy leaves about 6 cm (2 in) long.
Leafy spurge also spreads vegetatively from the root system, which is complex, reported to reach 8 m into the ground and 5 m across, and may have numerous buds. [7] [8] [9] There are two subspecies and a hybrid subspecies: [2] [4] Euphorbia esula subsp. esula. Leaves broadest near apex; umbel bracts 5–15 mm. Throughout the range of the species.
Vernicia fordii (usually known as the tung tree (Chinese: 桐, tóng) and also as the tung-oil or tungoil tree , the kalo nut tree, and the China wood-oil tree) is a species of flowering plant in the spurge family Euphorbiaceae. [2] [3] It is native to southern China, Myanmar, and northern Vietnam. [4]
Euphorbia caducifolia forms a dense, branching bush up to 3 m (10 ft) high and 10 m (33 ft) in diameter. The succulent stems branch frequently and tend to grow vertically. It has small oval leaves some 2.5 to 8 cm (1 to 3 in) long and 2.5 cm (1 in) wide, but these soon fall. Spines on the stipules are up to 1 cm (0.4 in) long.