Learn About The Euphorbia Pulcherrima Willd: Basics, Types, Growth & Care，Value and More
The poinsettia, also known as Euphorbia pulcherrima Willd, is a shrub that belongs to the Euphorbiaceae family and Euphorbia genus. It has a cylindrical root system with numerous branches. The stem is upright, 1–3 meters high and 1–4 centimeters in diameter, and is hairless. Its leaves are alternate, ovate-elliptical, oblong-elliptical or lanceolate, green, with entire, shallowly lobed or wavy shallowly lobed edges.
The leaf surface has short pubescence or no hair, and the leaf back has pubescence. The bracts are 5–7, narrow elliptical, 3–7 cm long and 1–2 cm wide, usually with entire margins and rarely with shallow wavy margins, and are scarlet.
The inflorescences are several umbels arranged at the top of the branches; the general inflorescence is urn-shaped, light green, with 5 toothed edges, and the lobes are triangular and hairless. The fruit is a schizocarp, trihedral-round, smooth and hairless. The seeds are ovate, gray or light gray, nearly smooth; without seed hilum. The flowering and fruiting period is from October to April of the following year.
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