View source for Paronychia

{{Treatment/ID
|accepted_name=Paronychia
|accepted_authority=Miller
|publications={{Treatment/Publication
|title=Gard. Dict. Abr. ed.
|place=4, vol. 3. 1754
|year=1754
}}
|common_names=Nailwort;whitlow-wort
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Anychia
|authority=Michaux
|rank=genus
}} {{Treatment/ID/Synonym
|name=Anychiastrum
|authority=Small
|rank=genus
}} {{Treatment/ID/Synonym
|name=Gastronychia
|authority=Small
|rank=genus
}} {{Treatment/ID/Synonym
|name=Gibbesia
|authority=Small
|rank=genus
}} {{Treatment/ID/Synonym
|name=Nyachia
|authority=Small
|rank=genus
}} {{Treatment/ID/Synonym
|name=Odontonychia
|authority=Small
|rank=genus
}} {{Treatment/ID/Synonym
|name=Siphonychia
|authority=Torrey & A. Gray
|rank=genus
}}
|hierarchy=Caryophyllaceae;Caryophyllaceae subfam. Paronychioideae;Paronychia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Caryophyllaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Caryophyllaceae subfam. Paronychioideae]]</div><div class="higher-taxon"><small>genus</small>[[Paronychia]]</div></div>
|etymology=Greek para- , beside, and onyx or onychos, fingernail, alluding to use for treating whitlow or felon, a disease of the fingernails
|volume=Volume 5
|mention_page=page 4, 5, 29, 31, 37
|treatment_page=page 30
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual, biennial, or perennial, sometimes with woody base. <b>Taproots</b> filiform to stout. <b>Stems</b> prostrate, ascending, or erect, simple or branched, terete to angular. <b>Leaves</b> opposite, connate by stipules from adjacent leaves, petiolate (basal) or sessile (cauline); stipules 2 per node, often conspicuous, white or silvery, subulate to lanceolate or ovate, margins entire or fimbriate, apex subobtuse or acute to acuminate, unlobed or sometimes deeply 2-fid; blade 1-veined, linear to elliptic, oblanceolate, or spatulate, sometimes thickened and succulent, apex obtuse or acute to acuminate or spinose. <b>Inflorescences</b> terminal or sometimes axillary, frequently much-branched or congested cymes, or flowers solitary; bracts paired, dimorphic (resembling leaf blades and stipules), often concealing flowers. <b>Pedicels</b> erect in fruit. <b>Flowers</b> bisexual or rarely unisexual, some plants also having staminate unisexual flowers, others also having pistillate unisexual flowers, not woolly, with hairs ± straight or tips coiled, 0.1–0.3 mm; hypanthium cup-shaped, tapering or expanded distally; sepals (3–)5, connate proximally, white or yellowish to green or reddish or purplish brown, subulate to linear-oblong, lanceolate, spatulate, or ovate, 0.4–4.5 mm, margins translucent to white, scarious or papery, apex defined by a usually prominent adaxial hood, ascending to slightly descending, rounded to triangular, sometimes absent (<i>P. americana</i>, <i>P. erecta</i>), apex obtuse or rounded, usually with terminal or subterminal cusp, crest, mucro, or prominent awn (often thickened-conic proximally, spinose distally); nectar secreted from within hypanthium; stamens usually 5; filaments distinct or connate proximally with alternating staminodes; staminodes absent or 5, arising from hypanthium rim, subulate to narrowly triangular, filiform, or oblong; styles 1–2(–3), distinct or often connate proximally 1/10–9/10 of length, subcapitate to filiform, 0.07–3.2 mm, glabrous proximally; stigmas 2(–3), subterminal or linear along adaxial surface of style branches, obscurely papillate (50×). <b>Utricles</b> ovoid to globose or rarely 4-angular, membranous, indehiscent. <b>Seeds</b> brown, subglobose to ellipsoid, laterally compressed, smooth, marginal wing absent, appendage absent; embryo peripheral, curved. <b>x</b> = 7, 8, 9.</span><!--

-->{{Treatment/Body
|distribution=Warm-temperate North America;South America;Eurasia;Africa.
|discussion=<p>Species ca. 110 (26 in the flora).</p><!--
--><p>Much of this treatment follows M. N. Chaudhri (1968), the only recent monograph of the genus; we agree with B. L. Turner (1983b) in not recognizing the infraspecific taxa that Chaudhri proposed for North American taxa. We follow L. H. Shinners (1962c) and Chaudhri in including the genus Siphonychia within <i>Paronychia</i>. This disposition is supported by results of the molecular study by B. Oxleman et al. (2002), which indicated that subg. <i>Paronychia</i> and subg. Siphonychia (Torrey & A. Gray) Chaudhri are sister taxa within a strongly supported clade.</p><!--
--><p>We have chosen not to utilize an infrageneric classification of <i>Paronychia</i>. M. N. Chaudhri (1968) recognized three subgenera within <i>Paronychia</i>. Most of our species are included in one of the two sections of subg. <i>Paronychia</i>; within sect. <i>Paronychia</i>, North American taxa fall into three subsections (including five different series within subsect. <i>Paronychia</i>). B. Oxelman et al. (2002) found that <i>Paronychia</i> as presently accepted is polyphyletic, with subg. Anoplonychia (Fenzl) Chaudhri (48 Old World species) clustering with <i>Herniaria</i>. Since their investigation included only eight species of <i>Paronychia</i>, additional study is warranted before splitting <i>Paronychia</i> and, as a logical consequence, revising the infrageneric classification.</p><!--
--><p>Flowers are described here in the closed state; the vast majority seen on <i>Paronychia</i> specimens examined are closed. The flower lengths given include awns (cusps, mucros, crests); sepal measurements do not include the awns; awns are interpreted as originating at the point of the departure of the usually ± horizontal, adaxial hood.</p>
|tables=
|references={{Treatment/Reference
|id=core1939a
|text=Core, E. L. 1939. A taxonomic revision of the genus Siphonychia. J. Elisha Mitchell Sci. Soc. 55: 339–345.
}}{{Treatment/Reference
|id=core1940a
|text=Core, E. L. 1940. Notes on the mid-Appalachian species of Paronychia. Virginia J. Sci. 1: 110–116.
}}{{Treatment/Reference
|id=core1941a
|text=Core, E. L. 1941. The North American species of Paronychia. Amer. Midl. Naturalist 26: 369–397.
}}{{Treatment/Reference
|id=fernald1936c
|text=Fernald, M. L. 1936c. Notes on Paronychia, Anychia. Rhodora 38: 416–421.
}}{{Treatment/Reference
|id=hartman1974a
|text=Hartman, R. L. 1974. Rocky Mountain species of Paronychia (Caryophyllaceae): A morphological, cytological, and chemical study. Brittonia 26: 256–263.
}}{{Treatment/Reference
|id=shinners1962a
|text=Shinners, L. H. 1962c. Siphonychia transferred to Paronychia (Caryophyllaceae). Sida 1: 101–103.
}}{{Treatment/Reference
|id=turner1983a
|text=Turner, B. L. 1983b. The Texas species of Paronychia (Caryophyllaceae). Phytologia 54: 9–23.
}}{{Treatment/Reference
|id=ward1977b
|text=Ward, D. B. 1977c. Keys to the flora of Florida. 2. Paronychia (Caryophyllaceae). Phytologia 35: 414–418.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Sepals rounded or with conic to triangular cusp, crest, or mucro, 0.1-0.3 mm
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|Sepals with distinct apical or subapical awn or spine, 0.5-2.1 mm, proximal 1/ 2/ 3 (measured from point of departure of hood) often thickened and ± conic or awn ± lanceoloid and 0.4-2.1+ mm
|[[#key-0-9| > 9]]
|-id=key-0-2
|2
|Sepals papery, typically red-brown proximally, white or whitish in distal 1/ 1/ 4, mucronate or not
|[[#key-0-3| > 3]]
|-id=key-0-2
|2
|Sepals herbaceous to leathery or rigid, mucronate
|[[#key-0-5| > 5]]
|-id=key-0-3
|3
|Sepals not mucronate; plant cespitose perennial (occasionally biennial?); stems typically dimorphic, sterile ones with leaves more closely imbricate than fertile
|[[Paronychia erecta|Paronychia erecta]]
|-id=key-0-3
|3
|Sepals mucronate; plants annual or rarely short-lived, noncespitose perennial; stems only fertile
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Flowers 1.2-2.2 mm, in clusters 2-5 mm wide; sepals 0.6-1.2 mm; styles 1.3 mm or less
|[[Paronychia patula|Paronychia patula]]
|-id=key-0-4
|4
|Flowers 2.3-3.5 mm, in clusters often 5-30 mm wide; sepals 1.5-2 mm; styles 1.5 mm or longer
|[[Paronychia rugelii|Paronychia rugelii]]
|-id=key-0-5
|5
|Leaf blade margins revolute
|[[Paronychia chartacea|Paronychia chartacea]]
|-id=key-0-5
|5
|Leaf blade margins flat
|[[#key-0-6| > 6]]
|-id=key-0-6
|6
|Plants glabrous
|[[Paronychia canadensis|Paronychia canadensis]]
|-id=key-0-6
|6
|Plants, at least stems and often hypanthia, pubescent, sometimes sparsely so
|[[#key-0-7| > 7]]
|-id=key-0-7
|7
|Flowers briefly constricted above hypanthium; sepal apices broadly rounded, with cusps absent; sepals obovate, 0.4-0.8 mm
|[[Paronychia americana|Paronychia americana]]
|-id=key-0-7
|7
|Flowers not constricted between hypanthium and calyx; sepal apices with cusps 0.1-0.3 mm; sepals linear-oblong to ovate, 0.8-1.3 mm
|[[#key-0-8| > 8]]
|-id=key-0-8
|8
|Leaf margins ciliate, at least proximally; staminodes subulate, 0.2-0.3 mm
|[[Paronychia baldwinii|Paronychia baldwinii]]
|-id=key-0-8
|8
|Leaf margins glabrous; staminodes absent
|[[Paronychia fastigiata|Paronychia fastigiata]]
|-id=key-0-9
|9
|Awns and often margins of calyx lobes white, often prominent
|[[#key-0-10| > 10]]
|-id=key-0-9
|9
|Awns and margins green to brown or yellowish (awns white but inconspicuous and threadlike in P. ahartii)
|[[#key-0-14| > 14]]
|-id=key-0-10
|10
|Awns of calyx lobes ± lanceoloid, often flattened, distinct spine absent; s, w Texas
|[[#key-0-11| > 11]]
|-id=key-0-10
|10
|Awns of calyx lobes spinose or ± conic with spinose tip
|[[#key-0-12| > 12]]
|-id=key-0-11
|11
|Leaves glabrous; hypanthia with numerous hooked hairs
|[[Paronychia maccartii|Paronychia maccartii]]
|-id=key-0-11
|11
|Leaves hirtullose; hypanthia with straight hairs
|[[Paronychia wilkinsonii|Paronychia wilkinsonii]]
|-id=key-0-12
|12
|Awns of calyx lobes spinose, ± erect; plants perennial; Kentucky, Georgia, Tennessee, and east
|[[Paronychia argyrocoma|Paronychia argyrocoma]]
|-id=key-0-12
|12
|Awns of calyx lobes ± broadly conic, divergent; plants annual or biennial
|[[#key-0-13| > 13]]
|-id=key-0-13
|13
|Stems erect; calyx rather uniformly pubescent with hooked hairs; Louisiana, Oklahoma, Texas
|[[Paronychia drummondii|Paronychia drummondii]]
|-id=key-0-13
|13
|Stems prostrate; calyx with at least a few decidedly enlarged, hooked hairs; s Texas
|[[Paronychia jonesii|Paronychia jonesii]]
|-id=key-0-14
|14
|Plants diminutive, annual; stems erect, 0.5-1.2 cm; calyx lobes with linear, herbaceous midrib terminating in white, wavy, threadlike, spreading awn 1.5-2 mm, margins scarious, resembling stipule with erect, split apex apparently representing hood
|[[Paronychia ahartii|Paronychia ahartii]]
|-id=key-0-14
|14
|Plants if annual, 3-38 cm; calyx lobes lanceolate to ovate with relatively stout awn or spine, margins if scarious, not stipulelike, hoods ± horizontal, adaxial
|[[#key-0-15| > 15]]
|-id=key-0-15
|15
|Leaves relatively broad (ovate to elliptic or oblong)
|[[#key-0-16| > 16]]
|-id=key-0-15
|15
|Leaves needlelike (linear to subulate or filiform)
|[[#key-0-19| > 19]]
|-id=key-0-16
|16
|Plants erect to prostrate, annual
|[[#key-0-17| > 17]]
|-id=key-0-16
|16
|Plants cespitose or prostrate, strongly perennial
|[[#key-0-18| > 18]]
|-id=key-0-17
|17
|Flowers 3-12 per node along stems and branches, moderately pubescent with hooked hairs proximally; awns of calyx lobes widely divergent, 0.6-0.9 mm; introduced; California
|[[Paronychia echinulata|Paronychia echinulata]]
|-id=key-0-17
|17
|Flowers 1 or 2 per node in diffuse cymes, glabrous to strigose; awns of calyx lobes straight to slightly spreading, 0.3-0.4 mm; native; Florida, Georgia, South Carolina
|[[Paronychia herniarioides|Paronychia herniarioides]]
|-id=key-0-18
|18
|Plants mat-forming; stems mostly 20-50 cm; leaves ± moderately antrorsely appressed-pubescent; flowers 3-6 per leaf axil along stem, 1.9-2.4 mm; coastal hills; California
|[[Paronychia franciscana|Paronychia franciscana]]
|-id=key-0-18
|18
|Plants densely cespitose, forming cushions; stems 5-10 cm; leaves glabrous (or minutely ciliolate); flowers solitary, terminal, 2.5-2.8 mm; alpine; Colorado, New Mexico, Utah, Wyoming
|[[Paronychia pulvinata|Paronychia pulvinata]]
|-id=key-0-19
|19
|Plants annual, biennial, or weak perennial, without vegetative shoots or mats or numerous old stems
|[[#key-0-20| > 20]]
|-id=key-0-19
|19
|Plants strongly perennial with vegetative shoots and remnants of old flowering stems, caudex woody, branched
|[[#key-0-22| > 22]]
|-id=key-0-20
|20
|Calyces of distalmost flowers noticeably exceeded by subtending bracts
|[[Paronychia setacea|Paronychia setacea]]
|-id=key-0-20
|20
|Calyces of distalmost flowers longer than subtending bracts
|[[#key-0-21| > 21]]
|-id=key-0-21
|21
|Flowers mostly solitary and separate; flowers 1.6-2 mm; c Texas
|[[Paronychia lindheimeri|Paronychia lindheimeri]]
|-id=key-0-21
|21
|Flowers mostly clustered; flowers 2.3-3.2 mm; Trans-Pecos Texas
|[[Paronychia monticola|Paronychia monticola]]
|-id=key-0-22
|22
|Flowers 1-6, sessile, terminating stems; leaves of sterile and flowering stems appressed, tightly overlapping (“juniperlike”), blades mostly with roundedapex; awns of sepals erect to somewhat spreadin
|[[Paronychia sessiliflora|Paronychia sessiliflora]]
|-id=key-0-22
|22
|Flowers 7-80+, pedicellate, in diffuse to compact cymes; leaves of stems spreading, at least moderately spaced, blades with rounded to mucronate or cuspidate apex
|[[#key-0-23| > 23]]
|-id=key-0-23
|23
|Sepals prominently 3-veined throughout
|[[Paronychia virginica|Paronychia virginica]]
|-id=key-0-23
|23
|Sepals not veined or obscurely so
|[[#key-0-24| > 24]]
|-id=key-0-24
|24
|Stems and leaf blades glabrous; awns 1-1.5(-2) mm
|[[Paronychia monticola|Paronychia monticola]]
|-id=key-0-24
|24
|Stems and leaf blades puberulent to pubescent; awns 0.4-0.9 mm
|[[#key-0-25| > 25]]
|-id=key-0-25
|25
|Calyces gradually narrowing distally; leaf blades 4-7 mm
|[[Paronychia congesta|Paronychia congesta]]
|-id=key-0-25
|25
|Calyces ± cylindric to expanding distally; leaf blades 7-25(-34) mm
|[[#key-0-26| > 26]]
|-id=key-0-26
|26
|Plants mat-forming with prostrate stems seldom more than 8 cm above ground surface; flowers 2.3-3.5 mm
|[[Paronychia depressa|Paronychia depressa]]
|-id=key-0-26
|26
|Plants with erect to ascending stems, 10-30 cm; flowers 1.8-2.8 mm
|[[Paronychia jamesii|Paronychia jamesii]]
|}
</div></div><!--

-->{{#Taxon:
name=Paronychia
|author=Ronald L. Hartman;John W. Thieret;Richard K. Rabeler
|authority=Miller
|rank=genus
|parent rank=subfamily
|synonyms=Anychia;Anychiastrum;Gastronychia;Gibbesia;Nyachia;Odontonychia;Siphonychia
|basionyms=
|family=Caryophyllaceae
|illustrator=Barbara Alongi
|illustration copyright=Flora of North America Association
|distribution=Warm-temperate North America;South America;Eurasia;Africa.
|reference=core1939a;core1940a;core1941a;fernald1936c;hartman1974a;shinners1962a;turner1983a;ward1977b
|publication title=Gard. Dict. Abr. ed.
|publication year=1754
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_52.xml
|subfamily=Caryophyllaceae subfam. Paronychioideae
|genus=Paronychia
}}<!--

-->[[Category:Treatment]][[Category:Caryophyllaceae subfam. Paronychioideae]]