马齿苋属属

属名Portulaca来源于拉丁语portulaca，即马齿苋。

物种

• 本属包括以下物种：
• 小松针牡丹 Portulaca gilliesii
• 大花马齿苋 Portulaca grandiflora
• 小琉球马齿苋 Portulaca insularis

Portulaca laljii P. Sivaramakrishna & P. Yugandhar, 2020

• 金钱木 Portulaca molokiniensis
• 马齿苋 Portulaca oleracea
• 毛马齿苋 Portulaca pilosa
• 沙生马齿苋 Portulaca psammotropha
• 四瓣马齿苋 Portulaca quadrifida
• 环翅马齿苋 Portulaca umbraticola

Portulaca ( POR-chə-LAK-ə, UK also POR-tyuul-AK-ə, US also POR-chə-LAH-kə) is a genus of flowering plants in the family Portulacaceae, and is the type genus of the family. With over 100 species, it is found generally in the tropics and warm temperate regions. Portulacas are also known as the purslanes.

Common purslane (Portulaca oleracea) is widely consumed as an edible plant, and in some areas it is considered invasive. Portulaca grandiflora is a well-known ornamental garden plant. Purslanes are relished by chickens. Some Portulaca species are used as food plants by the larvae of some Lepidoptera species including the nutmeg moth (Hadula trifolii).

Some Portulaca species can undergo photosynthesis using the C4 or the CAM light-independent pathway as required depending on environmental conditions.

Species

Formerly placed here

• Anacampseros arachnoides (Haw.) Sims (as P. arachnoides Haw.)
• Anacampseros filamentosa subsp. filamentosa (as P. filamentosa Haw.)
• Anacampseros lanceolata subsp. lanceolata (as P. lanceolata Haw.)
• Anacampseros rufescens (Haw.) Sweet (as P. rufescens Haw.)
• Anacampseros telephiastrum DC. (as P. anacampseros L.)
• Sesuvium portulacastrum (L.) L. (as P. portulacastrum L.)
• Talinum fruticosum (L.) Juss. (as P. fruticosa L. or P. triangularis Jacq.)
• Talinum paniculatum (Jacq.) Gaertn. (as P. paniculata Jacq. or P. patens L.)