Paronychia wilkinsonii

S. Watson

Proc. Amer. Acad. Arts 21: 454. 1886.

Common names: Wilkinson’s nailwort
Conservation concern
Treatment appears in FNA Volume 5. Treatment on page 43. Mentioned on page 31.

Plants perennial, cushion-forming, hirtellous; caudex much-branched, woody. Stems erect to ascending, much-branched, 4–10 cm, hirtellous. Leaves: stipules lanceolate, 5–8 mm, apex acuminate, often deeply cleft; blade lanceolate, 5–9 × 0.75–1.1 mm, leathery, apex pungently mucronate, minutely hirtellous to puberulent. Cymes terminal and subterminal, 3–7 (–10) -flowered, densely congested, forming large and conspicuous glomerules 5–15 mm wide. Flowers 5-merous, ± short-campanulate, with enlarged hypanthium and calyx slightly constricted then widening distally, 3.3–4.5 mm, puberulent with mostly ascending hairs; sepals redbrown, midrib and lateral pair of veins absent to evident, oblong, 1.7–2 mm, leathery to rigid, margins white, 0.2–0.3 mm wide, papery to scarious, apex terminated by awn, hood ± obscure, broadly rounded, awn moderately divergent, white, ± lanceoloid, 1.4–2.1 mm, scabrous, distinct spine absent; staminodes ± triangular, 0.2–0.4 mm; styles 2, 0.5–0.7 mm. Utricles subglobose to ± 4-angular, 1.2–1.3 mm, papillate distally.


Phenology: Flowering spring–fall.
Habitat: Dry, rocky hills, gravelly slopes and summits
Elevation: 1200-1600 m.

Distribution

V5 84-distribution-map.gif

Tex., Mexico (Chihuahua), Mexico (Coahuila)

Discussion

Of conservation concern.

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 wilkinsonii"
awned +  and hooded +
ascending +  and slightly descending +
minutely hirtellous +  and puberulent +
mucronate;acuminate +
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
S. Watson +
prominent +
lanceoloid +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
stipulate +  and petiolate +
not +  and connate +
often +  and needlelike +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
lanceolate +
0.075 cm0.75 mm <br />7.5e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
reduced +
constricted +
much-branched +
Wilkinson’s nailwort +
3-7(-10)-flowered +
subterminal +
5mm;15mm +
dish--shaped +
expanded +
Tex. +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
1200-1600 m. +
peripheral +
connate +  and distinct +
unisexual +  and bisexual +
short-campanulate +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
sometimes +  and indehiscent +
stalked +  and simple +
Dry, rocky hills, gravelly slopes and summits +
straight +
rounded +
tapering +  and cup-shaped +
sessile +  and petiolate +
adjacent +  and opposite +
connate +
all +  and distalmost +
fimbriate +  and entire +
papery +  and scarious +
0.2mm +  and 0.3mm +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
leathery +  and rigid +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
fugacious +
4 +  and 5 +
Flowering spring–fall. +
Proc. Amer. Acad. Arts +
compressed +, subglobose +  and ellipsoid +
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 />) +
Conservation concern +
distinct +
triangular +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (?) +  and 0.04 cm0.4 mm <br />4.0e-4 m <br /> (?) +
much-branched +
erect;ascending +
hirtellous +
terete;angular +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
subterminal +
[50 +  and 2 +
papillate +
silvery +  and white +
lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
connate +  and distinct +
subcapitate +  and filiform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Anychia +, Anychiastrum +, Gastronychia +, Gibbesia +, Nyachia +, Odontonychia +  and Siphonychia +
Paronychia wilkinsonii +
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 +
papillate +
subglobose +  and more or less 4-angular +
0.12 cm1.2 mm <br />0.0012 m <br /> (?) +  and 0.13 cm1.3 mm <br />0.0013 m <br /> (?) +
membranous +
8 (?) +  and 10 (?) +
not rhizomatous +  and taprooted +
plant +  and cushion-forming +
9 +, 8 +  and 7 +