Paronychia depressa

(Torrey & A. Gray) Nuttall ex A. Nelson

Bull. Torrey Bot. Club 26: 236. 1899.

Common names: Spreading nailwort
Endemic
Basionym: Paronychia jamesii var. depressa Torrey & A. Gray Fl. N. Amer. 1: 171. 1838
Synonyms: Paronychia depressa var. brevicuspis (A. Nelson) Chaudhri Paronychia depressa var. diffusa (A. Nelson) Chaudhri
Treatment appears in FNA Volume 5. Treatment on page 36. Mentioned on page 32.

Plants perennial, often matted; caudex branched, woody. Stems prostrate to sprawling, much-branched, 8–15 cm, scabrous-puberulent to puberulent throughout. Leaves: stipules lanceolate, 2–8 mm, apex acuminate, entire; blade linear, 8–15 (–23) × 0.5–1 mm, leathery, apex shortly cuspidate, puberulent. Cymes terminal, 3–7-flowered, branched, congested, in clusters 7–25 mm wide. Flowers 5-merous, ± ovate, with prominently enlarged hypanthium and calyx tapering only slightly distally, 2.3–3.5 mm, puberulent; sepals green to purple-brown, midrib and lateral pair of veins ± obscure, oblong to lanceolate-oblong, 1.7–2 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, hood prominent, rounded-triangular, awn divergent, conic in proximal 1/2–2/3 with yellowish, scabrous spine 0.7–0.9 mm; staminodes filiform, 0.5–0.8 mm; style 1, cleft in distal 1/3–2/3, 0.8–1.4 mm. Utricles ± ovoid, 0.8–0.9 mm, smooth, glabrous. 2n = 32.


Phenology: Flowering summer.
Habitat: Dry plains, rocky ridges, hillsides
Elevation: 800-3000 m

Discussion

Paronychia depressa is considered to be closely related to the nearly allopatric P. jamesii.

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 depressa"
awned +  and hooded +
cuspidate +  and entire +
ascending +  and slightly descending +
puberulent +
acuminate +
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
(Torrey & A. Gray) Nuttall ex A. Nelson +
prominent +
stipulate +  and petiolate +
not +  and connate +
Paronychia jamesii var. depressa +
often +  and needlelike +
1.5 cm15 mm <br />0.015 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 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 +
tapering +
enlarged +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Spreading nailwort +
branched +  and 3-7-flowered +
7mm;25mm +
dish--shaped +
expanded +
Colo. +, S.Dak. +  and Wyo. +
800-3000 m +
peripheral +
connate +  and distinct +
unisexual +  and bisexual +
sometimes +  and indehiscent +
stalked +  and simple +
Dry plains, rocky ridges, hillsides +
straight +
rounded-triangular +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
sessile +  and petiolate +
adjacent +  and opposite +
connate +
all +  and distalmost +
whitish +  and translucent +
fimbriate +  and entire +
0.05mm +  and 0.1mm +
oblong +  and lanceolate-oblong +
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 summer. +
Bull. Torrey Bot. Club +
compressed +, subglobose +  and ellipsoid +
green +  and purple-brown +
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 />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +
much-branched +
prostrate +  and sprawling +
erect;ascending;erect;ascending;prostrate +
scabrous-puberulent +  and puberulent +
terete;angular +
8 cm80 mm <br />0.08 m <br /> (15 cm150 mm <br />0.15 m <br />) +
subterminal +
[50 +  and 2 +
papillate +
silvery +  and white +
lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 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 depressa var. brevicuspis +  and Paronychia depressa var. diffusa +
Paronychia depressa +
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 +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +  and 0.09 cm0.9 mm <br />9.0e-4 m <br /> (?) +
membranous +
8 (?) +  and 10 (?) +
not rhizomatous +  and taprooted +
plant +  and matted +
pubescence of simple hairs or stalked glands +  and glabrous +
9 +, 8 +  and 7 +