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FNA | Family List | FNA Vol. 3 | Urticaceae | Parietaria

2. Parietaria floridana Nuttall, Gen. N. Amer. Pl. 2: 208. 1818.

Parietaria nummularia Small

Herbs , annual or short-lived perennial, 1-4 dm. Stems 10-20-branched, decumbent to ascending. Leaf blades orbiculate to deltate, 0.7-2.7 × 0.5-1.7 cm, base truncate, rounded, or very broadly cuneate, apex smoothly attenuate or occasionally slightly acuminate. Flowers: involucral bracts 1.5-2 mm; tepals ca. 1.5 mm, nearly equal to bracts. Achenes light brown, symmetric, 0.5-0.8 × 0.3-0.6 mm or less, apex obtuse, mucro ±apical; stipe centered, short-cylindric, abruptly flared basally.

Flowering winter-spring. Weedy places, around masonry, woodland and shrub borders, shell mounds, sandy beaches, roadsides; Atlantic and Gulf coastal plains; 0-30 m; Del., Fla., Ga., La., Miss., N.C., S.C., Tex.; Mexico; West Indies; South America.

Parietaria praetermissa has been misidentified as P . floridana by some authors.


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