Silkcotton Purslane

(Portulaca halimoides)

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Description

Portulaca halimoides-is a species of-purslane-known by the common name-silkcotton purslane. It is native to the deserts of the southwestern United States and northern Mexico, as well as parts of Central and South America. It is a fleshy annual herb producing a branching stem spreading to a maximum length around 25 centimeters. It is often pink or red in color and there are strands of woolly hairlike-trichomes-at nodes along the stem and within the-inflorescence. The thick, cylindrical, blunt-tipped leaves are up to 2 centimeters in length and green to red in color. Flowers occur in clusters of up to 10 at the tips of the stem branches. Each is a few millimeters wide with yellow petals which are sometimes hidden under the two fused, fleshy red-sepals. The fruit is a tiny capsule which contains several seeds. The grainlike seeds may be black, grayish, or silvery in color.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Order:Caryophyllales
Family:Portulacaceae
Genus:Portulaca
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