|Dicotyledon|| Literature for Pilea microphylla
Lorence & Wagner, 2020.
|Urticaceae -- The Cecropia, Nettle Family||Bibliography|
Common name(s): artillery plant, rockweed
|Distribution||Native to southern Florida, the West Indies, Mexico, and south to tropical South America.In the Hawaiian Islands, naturalized on Midway, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i.|
||Monoecious or dioecious, annual or short-lived perennial herb; stems succulent, sometimes slightly woody at base, prostrate-spreading or cespitose, 5‒50 cm long.
||Leaves crowded throughout stem length, short-petiolate or subsessile; blade obovate, elliptic, oblanceolate, or oblong, 1.5‒10 mm long, 1‒4 mm wide, those of a pair often unequal in size, sometimes some branches with leaves of a pair equal or all leaves of plant equal, secondary veins 2‒3 on each side, often inconspicuous, adaxial surface with crowded elliptic cystoliths, abaxial surface finely reticulate, margin entire; petiole (0‒)1‒4 mm long, always shorter than the blade; stipules ca. 1 mm long.
||Inflorescences a sessile glomerule or cyme, peduncle 1‒6 mm long. Staminate flowers 0.6‒1 mm long, calyx lobes glabrous, each with a blunt, abaxial, apiculate appendage; pistillate flowers 0.8‒1 mm long, outer calyx lobe slightly longer than others, with inconspicuous abaxial, apiculate appendages.
||Fruit ellipsoid, compressed, 0.5‒1 mm long, slightly longer than the largest calyx lobe.
||2n = 36.