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Drummond's nailwort

spreading nailwort

Habit Plants annual or biennial; taproot filiform to slender. Plants perennial, often matted; caudex branched, woody.
Stems

sprawling t2o erect, nearly simple to much-branched especially distally, 7–35 cm, retrorsely pubescent on 1 side or throughout.

prostrate to sprawling, much-branched, 8–15 cm, scabrous-puberulent to puberulent 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.

stipules lanceolate, 2–8 mm, apex acuminate, entire;

blade linear, 8–15(–23) × 0.5–1 mm, leathery, apex shortly cuspidate, puberulent.

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 red-brown, 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.

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.

Cymes

terminal, 25+-flowered, much-branched but congested, clusters 5–20 mm wide.

terminal, 3–7-flowered, branched, congested, in clusters 7–25 mm wide.

Utricles

ellipsoid to subglobose, 0.5–0.8 mm, minutely papillate distally.

± ovoid, 0.8–0.9 mm, smooth, glabrous.

2n

= 32.

Paronychia drummondii

Paronychia depressa

Phenology Flowering spring–fall. Flowering summer.
Habitat Sandy woodlands, clearings, roadsides Dry plains, rocky ridges, hillsides
Elevation 0-100 m (0-300 ft) 800-3000 m (2600-9800 ft)
Distribution
from FNA
LA; OK; TX
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; SD; WY
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[BONAP county map]
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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 5, p. 36. FNA vol. 5, p. 36.
Parent taxa Caryophyllaceae > subfam. Paronychioideae > Paronychia Caryophyllaceae > subfam. Paronychioideae > Paronychia
Sibling taxa
P. ahartii, P. americana, P. argyrocoma, P. baldwinii, P. canadensis, P. chartacea, P. congesta, P. depressa, P. echinulata, P. erecta, P. fastigiata, P. franciscana, P. herniarioides, P. jamesii, P. jonesii, P. lindheimeri, P. maccartii, P. monticola, P. patula, P. pulvinata, P. rugelii, P. sessiliflora, P. setacea, P. virginica, P. wilkinsonii
P. ahartii, P. americana, P. argyrocoma, P. baldwinii, P. canadensis, P. chartacea, P. congesta, P. drummondii, P. echinulata, P. erecta, P. fastigiata, P. franciscana, P. herniarioides, P. jamesii, P. jonesii, P. lindheimeri, P. maccartii, P. monticola, P. patula, P. pulvinata, P. rugelii, P. sessiliflora, P. setacea, P. virginica, P. wilkinsonii
Synonyms P. drummondii subsp. parviflora P. jamesii var. depressa, P. depressa var. brevicuspis, P. depressa var. diffusa
Name authority Torrey & A. Gray: Fl. N. Amer. 1: 170. (1838) (Torrey & A. Gray) Nuttall ex A. Nelson: Bull. Torrey Bot. Club 26: 236. (1899)
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