User:Bob die Baumeister/sandbox

Description
The yellow flowers are mostly self-pollinating, occasionally they are visited by flies and ants. The flowers are open only in the morning; their filaments are irritable.

The fruits are many-seeded lidded capsules. Seed set is considerable; one plant can develop up to 193,000 seeds. The seeds germinate optimally at a temperature above 25 °C; they are light germinators; even a soil cover of 5 mm can have a negative effect on germination.

Classification
The first publication of Portulaca oleracea was in 1753 by Carl von Linné in Species Plantarum. Due to the great variability, a large number of subspecies and varieties have been described as species of their own, but according to other publications, they all fall within the range of variation of Portulaca oleracea. The synonyms Portulaca oleracea subsp. sativa, Portulaca sativa, and Portulaca oleracea var. sativa, which are more common in the literature, refer to a somewhat more robust form in cultivation with larger seeds that cannot be separated from the species.

The in cultivation more commonly known Winter purslane (Claytonia perfoliata), is a member of the Montiaceae and therefore not closely related.