Portulaca Linnaeus. Purslane, Portulaca.
A genus of about 40-100 species, annual and perennial herbs, nearly cosmopolitan, but especially in tropical, subtropical, and warm temperate regions. Portulaca flowers open only for a few hours each on sunny days (Matthews & Levins 1985a).
Ref: Banfi, Galasso, & Soldano (2011); Bradley, Matthews, & Anderson (2019) In Weakley et al. (2019a); Carolin In Kubitzki, Rohwer, & Bittrich (1993); Danin & Anderson (1986); Danin, Baker, & Baker (1978); Matthews (2003) In Flora of North America Editorial Committee (2003b); Matthews & Ketron (1991); Matthews & Levins (1985a); Matthews & Levins (1986); Matthews, Faircloth, & Allison (1991); Matthews, Ketron, & Zane (1992a); Matthews, Ketron, & Zane (1992b); Matthews, Ketron, & Zane (1993); Walter, Vekslyarska, & Dobeš (2015). Show full citations.
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