Paronychia pulvinata

A. Gray

Proc. Acad. Nat. Sci. Philadelphia 15: 58. 1864.

Common names: Rocky Mountain nailwort
IllustratedEndemic
Synonyms: Paronychia pulvinata var. longiaristata Chaudhri
Treatment appears in FNA Volume 5. Treatment on page 40. Mentioned on page 32, 34.

Plants perennial, densely cespitose, cushion-forming; caudex much-branched, woody. Stems prostrate, much-branched, 5–10 cm, puberulent. Leaves: stipules ovate, 3–6 mm, apex subobtuse, entire; blade narrowly elliptic-oblong or oblong to narrowly elliptic-oblanceolate, 2–5 × 0.2–1.8 (–2) mm, fleshy, apex obtuse to subacute, glabrous. Flowers mostly solitary at end of shoots, almost concealed by leaves. Flowers 5-merous, elliptic-oblong, with enlarged hypanthium and calyx straight to tapering distally, 2.5–2.8 mm, densely appressed-puberulent, sparsely so distally; sepals whitish to green, veins absent, narrowly oblong to ovate-oblong, 1.5–1.7 mm, papery to herbaceous, margins white, 0.2–0.3 mm wide, papery, apex with subterminal awn, hood ascending as continuation of sepal, broadly rounded to notched, awn erect, white, 0.3–0.6 (–1) mm, ± glabrous spine; staminodes filiform, 0.7–0.9 mm; style 1, cleft in distal 1/3, 0.8–1 mm. Utricles ovoid, 1.3–1.5 mm, smooth, glabrous. 2n = 32.


Phenology: Flowering summer.
Habitat: Rocky slopes and summit screes in alpine regions
Elevation: 3300-4200 m

Discussion

Selected References

None.

Lower Taxa

None.

"/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 pulvinata"
awned +  and hooded +
ascending +  and slightly descending +
obtuse;subacute +
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
A. Gray +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
prominent +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
stipulate +  and petiolate +
not +  and connate +
often +  and needlelike +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
oblong +  and narrowly elliptic-oblanceolate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
reduced +
straight +
much-branched +
Rocky Mountain nailwort +
dish--shaped +
expanded +
Colo. +, Utah +  and Wyo. +
3300-4200 m +
peripheral +
connate +  and distinct +
appressed-puberulent +
unisexual +  and bisexual +
tapering +  and elliptic-oblong +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
sometimes +  and indehiscent +
stalked +  and simple +
Rocky slopes and summit screes in alpine regions +
straight +
broadly rounded +  and notched +
tapering +  and cup-shaped +
sessile +  and petiolate +
adjacent +  and opposite +
connate +
all +  and distalmost +
fimbriate +  and entire +
0.2mm +  and 0.3mm +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
fugacious +
4 +  and 5 +
Flowering summer. +
Proc. Acad. Nat. Sci. Philadelphia +
compressed +, subglobose +  and ellipsoid +
whitish +  and green +
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 />) +
Illustrated +  and Endemic +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (?) +  and 0.09 cm0.9 mm <br />9.0e-4 m <br /> (?) +
much-branched +
erect;ascending;erect;ascending;prostrate +
puberulent +
terete;angular +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
subterminal +
[50 +  and 2 +
papillate +
silvery +  and white +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
connate +  and distinct +
subcapitate +  and filiform +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Paronychia pulvinata var. longiaristata +
Paronychia pulvinata +
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 +
0.13 cm1.3 mm <br />0.0013 m <br /> (?) +  and 0.15 cm1.5 mm <br />0.0015 m <br /> (?) +
membranous +
8 (?) +  and 10 (?) +
narrowly oblong +  and ovate-oblong +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
papery +  and herbaceous +
not rhizomatous +  and taprooted +
plant +, cushion-forming +  and cespitose +
pubescence of simple hairs or stalked glands +  and glabrous +
9 +, 8 +  and 7 +