Flora of North America species comparison

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Paronychia pulvinata

Paronychia echinulata

Rocky Mountain nailwort

Eurasian nailwort
Habit 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.

Paronychia pulvinata

Paronychia echinulata
Phenology Flowering summer.
Habitat Rocky slopes and summit screes in alpine regions
Elevation 3300-4200 m (10800-13800 ft)
Distribution
from FNA
CO; UT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; Europe (Medi-terranean region); sw Asia; Africa (nw Mediterranean region)
[BONAP county map]
Discussion

Varieties 2 (1 in the flora).

Paronychia echinulata was for many years known as P. echinata Lamarck. The latter cannot be used since, as Chater noted, it is a superfluous name for Illecebrum cymosa Linnaeus [= P. cymosa (Linnaeus) de Candolle].

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 5, p. 40. 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. 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
P. ahartii, P. americana, P. argyrocoma, P. baldwinii, P. canadensis, P. chartacea, P. congesta, P. depressa, P. drummondii, 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
Subordinate taxa
P. echinulata var. echinulata
Synonyms P. pulvinata var. longiaristata
Name authority A. Gray: Proc. Acad. Nat. Sci. Philadelphia 15: 58. (1864) Chater: Feddes Repert. Spec. Nov. Regni Veg. 69: 52. (1964)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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