Flora of the Hawaiian Islands
Dicotyledon Literature for Portulaca oleracea
Lorence & Wagner, 2020.
   Portulacaceae -- The Purslane Family Bibliography
      Portulaca oleracea

Common name(s): purslane, `akulikuli kula, `akulikuli lau li`i, `ihi, pigweed
General Information
DistributionNearly cosmopolitan, although presumably native to the Old World.In the Hawaiian Islands, naturalized on Midway, Pearl and Hermes, Laysan, French Frigate Shoals, Nihoa, Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i.

Prostrate, usually annual herb; stems 1‒2 dm long, profusely branched, succulent, often red tinged.
Leaves alternate or subopposite, sessile, with an inconspicuous tuft of hairs ca. 1 mm long in the axil; blade cuneate to obovate, 10‒25(‒40) mm long, 5‒15(‒20) mm wide.
Inflorescences a cymose cluster of 2‒6(‒30) flowers. Flowers with sepals 3‒4(‒8) mm long, keeled; petals (4)5, yellow, broadly obovate, 3‒10 mm long; stamens 7‒10(‒15); styles (4)5-branched.
Fruit ca. 4 mm long, circumscissile at ⅓‒½ distance from base.
Seeds black, glossy, ca. 0.5‒0.6 mm in diameter, surface granulate, cells of the testa with fine tubercles.
2n = 14, 18, 36, 45, 52, 54.
Nancy Khan