Portulaca pilosa is a species of flowering succulent plant in the purslane family, Portulacaceae, that is native to the Americas.

Physical differences are observed due to variable habitat types this species can be found in.

Plants growing in moist, warm environments tend to branch quickly into a spreading habit, with an erect secondary growth.

Plants in dry and cool environments are the opposite, they grow erect first and then branch more slowly.

Specimens from Alabama, Arizona, Florida, Louisiana, Mississippi, Texas, and New Mexico exhibit all morphologic conditions.

Those from Arkansas, Kansas, Missouri, and Oklahoma usually tend to occur in shallow, sandy soils, often on rocky outcrops, and are often highly branched, compact, short, and not very pilose (hairy).

[7] In Hawaii, P. pilosa is officially documented from the coastline to dry lava flows at over 610 m in elevation[9] yet can be found up to nearly 1,800 m in the Pohakuloa Saddle region.

[10] In Cuba, portulaca pilosa is commonly called "Diez de la Mañana", i.e. the 10 a.m. flower.

This plant is somewhat unusual in that it can grow under a range of different environments, including dry soils, beaches, and disturbed habitats.