Paronychia jamesii |
Paronychia pulvinata |
|
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James' nailwort, nailwort |
Rocky Mountain nailwort |
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Habit | Plants perennial; caudex branched, woody. | Plants perennial, densely cespitose, cushion-forming; caudex much-branched, woody. |
Stems | erect to ascending, much-branched, 10–35 cm, scabrous, puberulent to pubescent, sometimes glabrous with age. |
prostrate, much-branched, 5–10 cm, puberulent. |
Leaves | stipules lanceolate, 5–15 mm, apex acuminate, entire; blade linear, 7–25(–34) × 0.5–1 mm, leathery, apex obtuse to subacute or submucronate, pubescent to puberulent. |
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 enlarged hypanthium and calyx widening somewhat distally, 1.8–2.8 mm, puberulent, glabrous to hirtellous distally; sepals green to red-brown, veins absent, oblong, 1.3–1.8 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, broadly rounded, awn widely divergent, 0.4–0.8 mm, conic in proximal 1/2–2/3 with yellowish, scabrous spine; staminodes filiform, 0.6–1 mm; style 1, cleft in distal 1/3–1/6, 0.8–1.2 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, 20–70-flowered, open, clusters 1–2 cm wide. |
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Utricles | ellipsoid-ovoid, 0.8–1 mm, smooth, glabrous. |
ovoid, 1.3–1.5 mm, smooth, glabrous. |
2n | = 32. |
|
Paronychia jamesii |
Paronychia pulvinata |
|
Phenology | Flowering summer–fall. | Flowering summer. |
Habitat | Limestone rocky ledges, slopes, hilltops, grasslands | Rocky slopes and summit screes in alpine regions |
Elevation | 500-2500 m (1600-8200 ft) | 3300-4200 m (10800-13800 ft) |
Distribution |
CO; KS; NE; NM; OK; TX; WY; Mexico (Chihuahua, Coahuila)
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CO; UT; WY
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Discussion | We agree with B. L. Turner (1983b) in not adopting the four varieties of Paronychia jamesii that Chaudhri recognized. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 5, p. 39. | FNA vol. 5, p. 40. |
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia |
Sibling taxa | ||
Synonyms | P. jamesii var. hirsuta, P. jamesii var. parviflora, P. jamesii var. praelongifolia | 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 |