Paronychia drummondii

Torrey & A. Gray

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

Common names: Drummond’s nailwort
Endemic
Synonyms: Paronychia drummondii subsp. parviflora Chaudhri
Treatment appears in FNA Volume 5. Treatment on page 36. Mentioned on page 31, 39.

Plants annual or biennial; taproot filiform to slender. Stems sprawling t2o erect, nearly simple to much-branched especially distally, 7–35 cm, retrorsely pubescent on 1 side or throughout. Leaves: stipules lanceolate to ovate, 5–10 mm, apex acuminate, entire; blade linear-oblong to oblanceolate, 5–30 × 1–7 mm, leathery, apex acute to cuspidate, moderately antrorsely pubescent. Cymes terminal, 25+-flowered, much-branched but congested, clusters 5–20 mm wide. Flowers 5-merous, ± short-campanulate, with prominently enlarged hypanthium and calyx flaring distally, (1.5–) 2–2.3 mm, pubescent proximally with short, hooked hairs; sepals greenish to brownish or redbrown, white distally, veins absent, oblong to obovate, 1–1.5 mm, leathery to rigid, margins white, 0.2–0.3 mm wide, papery, apex terminating in divergent awn, hood broadly rounded, awn white, stout-conic, 0.5–0.6 mm, glabrous; staminodes filiform, ± 0.3 mm; style 1, cleft in distal 1/5, 0.3–0.6 mm. Utricles ellipsoid to subglobose, 0.5–0.8 mm, minutely papillate distally.


Phenology: Flowering spring–fall.
Habitat: Sandy woodlands, clearings, roadsides
Elevation: 0-100 m

Discussion

Chaudhri described two subspecies of Paronychia drummondii based on differences in leaf pubescence, flower size, and style length. We follow B. L. Turner (1983b), who noted that many specimens demonstrate intermediate characteristics, suggesting that taxonomic recognition not be given to the extremes.

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 drummondii"
awned +  and hooded +
ascending +  and slightly descending +
rounded;acute;cuspidate +
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
Torrey & A. Gray +
prominent +
stout-conic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
stipulate +  and petiolate +
not +  and connate +
often +  and needlelike +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
linear-oblong +  and oblanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
reduced +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
flaring +
enlarged +
0.2 cm2 mm <br />0.002 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
Drummond’s nailwort +
much-branched +  and 25+-flowered +
5mm;20mm +
dish--shaped +
expanded +
La. +, Okla. +  and Tex. +
0-100 m +
peripheral +
connate +  and distinct +
unisexual +  and bisexual +
short-campanulate +
sometimes +  and indehiscent +
stalked +  and simple +
Sandy woodlands, clearings, roadsides +
straight +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
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 spring–fall. +
Fl. N. Amer. +
compressed +, subglobose +  and ellipsoid +
white +, greenish +  and brownish or 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 />) +
0.3 cm3 mm <br />0.003 m <br /> (?) +
nearly simple +  and much-branched +
terete;angular +
7 cm70 mm <br />0.07 m <br /> (35 cm350 mm <br />0.35 m <br />) +
subterminal +
[50 +  and 2 +
papillate +
silvery +  and white +
lanceolate +  and ovate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
connate +  and distinct +
subcapitate +  and filiform +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Paronychia drummondii subsp. parviflora +
Paronychia drummondii +
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 +
ellipsoid +  and subglobose +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +
membranous +
8 (?) +  and 10 (?) +
oblong +  and obovate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
leathery +  and rigid +
not rhizomatous +  and taprooted +
biennial +  and annual +
pubescence of simple hairs or stalked glands +  and glabrous +
9 +, 8 +  and 7 +