Contains 9 accepted taxa overall.

Characteristics
Paronychia Mill.
NAILWORT
Classification
CARYOPHYLLALES
Paronychia
Citation
PARONYCHIA Miller, Gard. Dict. Abr., ed. 4. 1754.
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TYPE: Paronychia argentea Lamarck (Illecebrum paronychia Linnaeus) Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 2: 26. 1913.
Distribution Map Present

This species have been reported in the counties highlighted.

Species
Scientific Name Common Name Herbarium Specimens Status Photos
Paronychia americana AMERICAN NAILWORT Native
Paronychia baldwinii BALDWIN'S NAILWORT Native
Paronychia chartacea PAPER NAILWORT; PAPERY WHITLOW-WORT Native Rare-State Threatened-US
Paronychia discoveryi FLORIDA NAILWORT Native
Paronychia erecta SQUAREFLOWER Native
Paronychia herniarioides COASTALPLAIN NAILWORT Native
Paronychia minima PAPER NAILWORT Native Threatened-State
Paronychia patula PINELAND NAILWORT Native
Paronychia rugelii RUGEL'S NAILWORT Native
Identification Key
1.  Leaf blade with spinulose mucro at the apex; sepals inconspicuously nerved, generally uniformly green in the distal half, gradually narrowed to a 0.3-0.4 mm long awn
1.  Leaf blade acute to obtuse at the apex; sepals strongly 3-nerved, generally with some white to red coloration in the distal half, rounded or with a mucro to 0.2 mm long
2
2.  Leaves and foliaceous bracts strongly and broadly revolute, broader towards the base, deltoid, ovate, to cordate (the upper lanceolate); flowers <1 mm long
2.  Leaves and foliaceous bracts flat (or nearly so), narrowed towards the base, spatulate, oblanceolate to elliptic; flowers >1 mm long
3
3.  Flowers 2.3-3.5 mm long
4
3.  Flowers 1.1-2.2 mm long
5
4.  Primary stems usually 2 or more at the plant base, the unbranched region of the stem longer than the branched part of the plant; sepals without a subterminal cusp
4.  Primary stems 1, the unbranched region of the stem shorter than the branched part of the plant; sepals with an evident subterminal cusp
5.  Flowers about as wide as long (excluding spreading sepal lobes), without a hypanthium; sepals free for most of their length and often ciliate
5.  Flowers longer than wide (excluding spreading sepal lobes), with a hypanthium; sepals connate and often pubescent in the lower half, constricted near the middle
6
6.  Sepals straight or nearly so, mucronate
6.  Sepals distinctly hooded at the apex, mucro absent or subtle
7
7.  Primary stems 1 at the plant base, decumbent; flowers 1.0-1.6 mm long; sepals not enlarged or thickened at the base into tubercles
7.  Primary stems usually 2 or more at the plant base, prostrate to procumbent; flowers 1.4-2 mm long; sepals enlarged or thickened at the base, tuberculate
Genus Synonyms
Synonym Full Citation Basionym Type
Anychia Anychia Michaux, Fl. Bor.-Amer. 1: 112. 1803. TYPE: Anychia dichotoma Michaux, nom. illegit. (Queria canadensis Linnaeus; Anychia canadensis (Linnaeus) Elliott) Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 2: 29. 1913.
Anychiastrum Anychiastrum Small, Fl. S.E. U.S. 411, 1330. 1903. TYPE: Anychiastrum riparium (Chapman) Small (Paronychia riparia Chapman)
Buinalis Buinalis Rafinesque, New Fl. 4: 40. 1838 ("1836"). TYPE: Buinalis floridana Rafinesque
Ferriera Ferriera Bubani, Fl. Pyren. 3: 6. 1901. TYPE: = Paronychia Miller 1754.
Forcipella Forcipella Small, Bull. Torrey Bot. Club 25: 150. 1898, non Baillon 1891. TYPE: Forcipella rugelii (Chapman) Small (Siphonychia rugelii Chapman) = Gibbesia Small 1898.
Gastronychia Gastronychia Small, Man. S.E. Fl. 480, 1504. 1933. TYPE: Gastronychia herniarioides (Michaux) Small (Anychia herniarioides Michaux)
Gibbesia Gibbesia Small, Bull. Torrey Bot. Club 25: 621. 1898. TYPE: Gibbesia rugelii (Chapman) Small (Siphonychia rugelii Chapman) Substitute name for Forcipella Small 1898, non Baillon 1891.
Nyachia Nyachia Small, Torreya 25: 11. 1925. TYPE: Nyachia pulvinata Small
Odontonychia Odontonychia Small, Fl. S.E. U.S. 401, 1330. 1903. TYPE: Odontonychia erecta (Chapman) Small (Siphonychia erecta Chapman)
Plagidia Plagidia Rafinesque, New Fl. 4: 42. 1838 ("1836"). TYPE: Plagidia rufa Rafinesque
Plottzia Plottzia Arnott, in Lindley, Intr. Nat. Syst. Bot., ed. 2. 441. 1836. TYPE: Plottzia dichotoma (Linnaeus) Meisner (Achyranthes dichotoma Linnaeus)
Siphonychia Siphonychia Torrey & A. Gray, Fl. N. Amer. 1: 173. 1838, nom. cons. TYPE: Siphonychia americana (Nuttall) Torrey & A. Gray (Herniaria americana Nuttall)