Euphorbia sp.
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Scientific Classification Kingdom: Plant Division: Tracheophyta Class: Magnoliopsida Superorder: Rosanae Order: Malpighiales Family: Euphorbiaceae Genus: Euphorbia L. Six(6) largest genera with about 2000 species |
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Distribution: Distributed in both The Worlds, but mainI in tropical, subtropical, and warm temperate regions. Nearly 40 species are recognized in Saudi Arabia.Euphorbiacyparissioides Pax, Euphorbia peplis L., and Euphorbia terracina L. |
| Habit: Monoecious herbs, shrubs, or trees, succulent or not, armed or unarmed, lactiferous. |
| Leaves: Stipulate or exstipulate, alternate or opposite or both or sometimes reduced to scales or absent, entire or serrate. |
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Inflorescences: A cyathium which has a cup-shaped involucre subtended by a pair of equal or unequal bracts. The involucre is 5 lobed and usually provided with 1-5 or more marginal nectar secreting glands and encloses a single female flower in the center seated on a long stalk and several to many .bracteate male flowers around this and seated on short stalks |
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Flowers: are incomplete and unisexual. .The cyathia are axillary or arranged pseudodichasially, often in a pseudoumbel of radiating dichasia __________________________ Sepals and petals are absent but sometimes the glands are provided with petaloid appendages giving the appearance of the presence of petals. ___________________________ Stamen: single, seated directly on its own pedicel; anther-cells subglobose, dehiscing longitudinally. ____________________________ Ovary: seated on its own pedicel that elongates in fruits; ovary 3-celled, each cell 1-ovuled; styles 3, free or connate at the base; stigmas usually 2-fid. |
| Fruit: 3-celled capsule dehiscing into bivalved, one-seeded cocci separating from the persistent central column. Seeds are smooth, wrinkled, rugulose or pitted, carunculate or ecarunculate, with .copious endosperm |