Vascular Plants of North Carolina
Account for Florida Pellitory - Parietaria floridana   Nuttall
Members of Urticaceae:
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Section 6 » Order Urticales » Family Urticaceae
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AuthorNuttall
DistributionEssentially coastal. Many or most records seem to be on the mainland, though a few likely from barrier islands. It ranges from Beaufort County southward, with records known for just four counties so far. Weakley (2018) considers it as native in NC, though the NCNHP is not as sure. Much confusion with the very similar P. praetermissa is apparent, regarding sight reports if not also specimens.

This species, believed to be native in NC, ranges from eastern NC south to nearly all of FL, and west scattered to southern TX. The global range is probably confused with the very similar P. praetermissa, and the NC range is also likely confused as well.
AbundanceRare or local along and near the coast, north to Beaufort County. The NCNHP puts it on their Watch List, but as W4 -- perhaps not native.
HabitatOver most if its range, this species typically has similar habitats to the very similar P. praetermissa. However, that species seems to occur mainly in natural settings in NC -- shell middens and margins and openings in hammocks, and on barrier islands. On the other hand, many or most P. floridana records in the state are in disturbed coastal habitats -- sunny areas but at least over marl/limestone. Some records are for lawns, cracks in pavement, "sandy alley edges", and other obviously weedy and ruderal sites. It can occur on shell middens and around hammock margins elsewhere in the range, but whether any records in NC are from such natural settings is not clear.
PhenologyBlooms from March to frost, and fruits from April to frost.
IdentificationThis species and P. praetermissa are very closely related, likely included as a single species in many references, though Weakley (2018) treats them as separate species. Each is a very small plant, with several basal branches, and appearing mostly decumbent or sprawling, reaching only about 2-4 inches tall. The leaves are alternate, with small ovate and entire blades that have tapering tips and a "long" petiole, though that is often just 1/4-inch long. Both have tiny flowers in clusters in leaf axils. In this species, the leaf blades are only 0.7-2.7 cm long -- barely 1-inch long at most and often about 1/2-inch long or less. P. praetermissa has leaves roughly 1-6.5 cm long -- 1.5-2 inches long. Weakley (2018) also says that this species has "Achene 0.6-0.9 mm long, with a flanged stipe, the mucro located symmetrical at the pole of the achene", versus "Achene 1.0-1.4 mm long, without a flanged stipe, the mucro located asymmetrically" in P. praetermissa. Obviously, it is the leaf blade size that will be the most obvious separation character for these two species.
Taxonomic CommentsThis species and P. praetermissa are often confused in the literature, and some SERNEC specimens in NC might not be correctly identified, as a result. Most current references have them as separate species.

Other Common Name(s)None
State RankS1 [S1?]
Global RankG5
State StatusW4
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