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perigynous +  and hypogynous +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
subglabrous +  and softly pubescent +
2-fid;obtuse;acute +
John K. Morton +
Gaudin +
elliptic to broadly ovate +  and linear +
0.2 cm2 mm <br />0.002 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
oblanceolate +  and linear +
not succulent +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
often +  and herbaceous +
lanceolate +
reduced +
herbaceous +  and scarious +
0.75 cm7.5 mm <br />0.0075 m <br /> (?) +  and 1.1 cm11 mm <br />0.011 m <br /> (?) +
8 +  and 6 +
cylindric +
0.25 cm2.5 mm <br />0.0025 m <br /> (?) +  and 0.4 cm4 mm <br />0.004 m <br /> (?) +
Céraiste dressé +
1-20-flowered +
dish--shaped +
expanded +
Greenland +, St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. +, Colo. +, Conn. +, Idaho +, Ind. +, Iowa +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, Mont. +, Nebr. +, Nev. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, S.Dak. +, Utah +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Wyo. +, Europe (Alps) +  and South America (s to Tierra del Fuego) +
0-3800 m +
straight +  and curved +
central +  and peripheral +
pistillate +  and subsessile +
inconspicuous +
unisexual +  and bisexual +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
purple-tinged +, straw colored +  and green +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
stalked +  and simple +
Prairie grasslands, roadsides, arctic and alpine tundra, shores, dunes and rocky plains, rocky outcrops, alvars, sea cliffs and banks, favoring neutral to alkaline soils +
deflexed +  and patent +
disc--shaped +  and dish +
not marcescent +
connate +
oblanceolate +
translucent +  and purplish +
pubescent;glandular-pubescent +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
reflexed;erect +
glandular-pubescent +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
perigynous +  and hypogynous +
fugacious +
2 times as long as sepals +
obovate +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering spring. +
0.6mm;1.2mm +
tuberculate +
compressed +  and angular-obovate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
persistent +
distinct +
narrowly lanceolate;lance-elliptic +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
spreading +  and deflexed +
pilose-subglabrous +  and glandular-pubescent +
Illustrated +
branched +  and simple +
ascending;erect or decumbent +
subterminal +
[30 +  and 5 +
roughened +  and papillate +
distinct +
clavate +  and filiform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Cerastium alsophilum +, Cerastium angustatum +, Cerastium arvense var. angustifolium +, Cerastium arvense var. fuegianum +, Cerastium arvense var. latifolium +, Cerastium arvense var. ophiticola +, Cerastium arvense var. purpurascens +, Cerastium arvense var. sonnei +, Cerastium arvense var. strictum +, Cerastium arvense var. viscidulum +, Cerastium campestre +, Cerastium confertum +, Cerastium effusum +, Cerastium elongatum +, Cerastium fuegianum +, Cerastium graminifolium +, Cerastium leibergii +, Cerastium nitidum +, Cerastium occidentale +, Cerastium oreophilum +, Cerastium patulum +, Cerastium pensylvanicum +, Cerastium pubescens +, Cerastium scopulorum +, Cerastium sonnei +, Cerastium subulatum +, Cerastium tenuifolium +, Cerastium thermale +  and Cerastium vestitum +
rooting +  and rhizomatous +
Cerastium arvense subsp. strictum +
Cerastium arvense +
subspecies +
not inflated +
divided +
10 +  and 8 +
taprooted +  and rhizomatous +
pubescence of simple hairs or stalked glands +  and glabrous +
19 +, 18 +, 17 +, 15] +, 13 +  and [9 +