Paronychia jamesii

Torrey & A. Gray

Fl. N. Amer. 1: 170. 1838.

Common names: James’ nailwort
Synonyms: Paronychia jamesii var. hirsuta Chaudhri Paronychia jamesii var. parviflora Chaudhri Paronychia jamesii var. praelongifolia Correll
Treatment appears in FNA Volume 5. Treatment on page 39. Mentioned on page 32, 36.
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Plants perennial; caudex branched, woody. Stems erect to ascending, much-branched, 10–35 cm, scabrous, puberulent to pubescent, sometimes glabrous with age. Leaves: stipules lanceolate, 5–15 mm, apex acuminate, entire; blade linear, 7–25 (–34) × 0.5–1 mm, leathery, apex obtuse to subacute or submucronate, pubescent to puberulent. Cymes terminal, 20–70-flowered, open, clusters 1–2 cm wide. Flowers 5-merous, short-campanulate, with enlarged hypanthium and calyx widening somewhat distally, 1.8–2.8 mm, puberulent, glabrous to hirtellous distally; sepals green to redbrown, veins absent, oblong, 1.3–1.8 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, broadly rounded, awn widely divergent, 0.4–0.8 mm, conic in proximal 1/2–2/3 with yellowish, scabrous spine; staminodes filiform, 0.6–1 mm; style 1, cleft in distal 1/3–1/6, 0.8–1.2 mm. Utricles ellipsoid-ovoid, 0.8–1 mm, smooth, glabrous.


Phenology: Flowering summer–fall.
Habitat: Limestone rocky ledges, slopes, hilltops, grasslands
Elevation: 500-2500 m

Distribution

V5 73-distribution-map.gif

Colo., Kans., Nebr., N.Mex., Okla., Tex., Wyo., Mexico (Chihuahua), Mexico (Coahuila)

Discussion

We agree with B. L. Turner (1983b) in not adopting the four varieties of Paronychia jamesii that Chaudhri recognized.

Selected References

None.

Lower Taxa

None.

"widening" is not a number."/10" is not declared as a valid unit of measurement for this property. "/10" is not declared as a valid unit of measurement for this property.

... more about "Paronychia jamesii"
awned +  and hooded +
ascending +  and slightly descending +
pubescent +  and puberulent +
rounded;obtuse;subacute or submucronate +
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
Torrey & A. Gray +
prominent +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
stipulate +  and petiolate +
not +  and connate +
often +  and needlelike +
2.5 cm25 mm <br />0.025 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
spatulate +, oblanceolate +  and linear to elliptic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
reduced +
James’ nailwort +
open +  and 20-70-flowered +
1cm;2cm +
dish--shaped +
expanded +
Colo. +, Kans. +, Nebr. +, N.Mex. +, Okla. +, Tex. +, Wyo. +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
500-2500 m +
peripheral +
connate +  and distinct +
glabrous +  and hirtellous +
unisexual +  and bisexual +
short-campanulate +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
sometimes +  and indehiscent +
stalked +  and simple +
Limestone rocky ledges, slopes, hilltops, grasslands +
straight +
tapering +  and cup-shaped +
sessile +  and petiolate +
adjacent +  and opposite +
connate +
all +  and distalmost +
whitish +  and translucent +
fimbriate +  and entire +
0.05mm +  and 0.1mm +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
fugacious +
4 +  and 5 +
Flowering summer–fall. +
Fl. N. Amer. +
compressed +, subglobose +  and ellipsoid +
green +  and redbrown +
persistent +
subulate;linear-oblong lanceolate spatulate or ovate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (?) +  and 0.1 cm1 mm <br />0.001 m <br /> (?) +
much-branched +
erect;ascending +
glabrous +, puberulent +  and pubescent +
terete;angular +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
subterminal +
[50 +  and 2 +
papillate +
silvery +  and white +
lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
connate +  and distinct +
subcapitate +  and filiform +
0.007 cm0.07 mm <br />7.0e-5 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Paronychia jamesii var. hirsuta +, Paronychia jamesii var. parviflora +  and Paronychia jamesii var. praelongifolia +
Paronychia jamesii +
Paronychia +
species +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
divided +
ellipsoid-ovoid +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +  and 0.1 cm1 mm <br />0.001 m <br /> (?) +
membranous +
8 (?) +  and 10 (?) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
leathery +  and rigid +
not rhizomatous +  and taprooted +
pubescence of simple hairs or stalked glands +  and glabrous +
9 +, 8 +  and 7 +