The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Drummond's nailwort

Rocky Mountain nailwort

Habit Plants annual or biennial; taproot filiform to slender. Plants perennial, densely cespitose, cushion-forming; caudex much-branched, woody.
Stems

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

prostrate, much-branched, 5–10 cm, puberulent.

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 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

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.

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.

Cymes

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

Utricles

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

ovoid, 1.3–1.5 mm, smooth, glabrous.

2n

= 32.

Paronychia drummondii

Paronychia pulvinata

Phenology Flowering spring–fall. Flowering summer.
Habitat Sandy woodlands, clearings, roadsides Rocky slopes and summit screes in alpine regions
Elevation 0-100 m (0-300 ft) 3300-4200 m (10800-13800 ft)
Distribution
from FNA
LA; OK; TX
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; UT; WY
[WildflowerSearch map]
[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.)

Source FNA vol. 5, p. 36. FNA vol. 5, p. 40.
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. depressa, 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. rugelii, P. sessiliflora, P. setacea, P. virginica, P. wilkinsonii
Synonyms P. drummondii subsp. parviflora P. pulvinata var. longiaristata
Name authority Torrey & A. Gray: Fl. N. Amer. 1: 170. (1838) A. Gray: Proc. Acad. Nat. Sci. Philadelphia 15: 58. (1864)
Web links