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Portulacaceae
Portulacaceae image
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CANOTIA 2(1)
PLANT: Annual or perennial herbs; stems simple or branched, prostrate to erect. LEAVES: cauline and opposite or alternate, or all basal, often fleshy; stipules present as axillary hairs or absent. INFLORESCENCE: racemose or cymose, terminal or axillary, or flowers solitary; bracts present or absent. FLOWERS: actinomorphic, perfect; pedicellate or sessile; sepals 2 (rarely 5-9); petals 5-18; stamens 1-many; ovary superior or inferior (in Portulaca), of 1- many fused carpels, 1-loculed; placentation basal or free-central. FRUIT: a 1-many-seeded capsule, splitting at apex by 2-3 valves or circumscissile. SEEDS: smooth or sculptured. NOTES: Ca. 30 genera, 500 spp., cosmopolitan, especially w. N. Amer. Some genera are cultivated as ornamentals (Lewisia, Portulaca); leaves of a few species can be eaten as greens or pot herbs; roots of Lewisia were historically used by Native Americans as a starchy staple (Moerman 1998). REFERENCES: Bair, Allison, Marissa Howe, Daniela Roth, Robin Taylor, Tina Ayers, and Robert W. Kiger. 2006. Vascular Plants of Arizona: Portulacaceae. CANOTIA 2(1): 1-22.
Species within checklist: McDowell Sonoran Preserve
Portulaca oleracea
Image of Portulaca oleracea
Portulaca pilosa
Image of Portulaca pilosa
Portulaca umbraticola
Image of Portulaca umbraticola
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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