Spreading Pellitory (Parietaria mauritanica)
Description
The biological form of Parietaria judaica is hemicryptophyte scapose, as its overwintering buds are situated just below the soil surface and the floral axis is more or less erect. This plant has pink or red hairy stems, woody at the base. It reaches on average a height of 60 centimetres (24 in). The leaves are hairy, alternate, simple, entire and green, with smooth margins. The tiny white or pink flowers are attached to the stems. They are bisexual or unisexual, produced in clusters of three to many together in the leaf axils. The nickname sticky-weed is due to the adherent quality of the flowers and of the hairy stems; unlike some related species of the family Urticaceae, the hairs do not sting. The flowering period extends from spring through autumn, when it produces large amounts of pollen. The fruits are blackish achenes.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Rosales
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Family: Urticaceae
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Genus: Parietaria
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