Species in the genus Portulaca:

Portulaca pilosa / Himematsubabotan ヒメマツバボタン

Portulaca pilosa is a naturalized annual succulent found in western Japan in dry, sunny areas like roadsides, with branches crawling 20-30cm long on the ground. Leaves are alternate, 5-20cm long, 1.5-3mm wide, of fleshy texture, and in shape of a flattened cylinder, with prominent white hairs at the bases. Stem tips set some, about 1cm-in-diameter, 5-petaled, red-purple flowers. Bloom time: July-September.