Paronychia pulvinata |
Paronychia jonesii |
|
---|---|---|
Rocky Mountain nailwort |
Jones' nailwort |
|
Habit | Plants perennial, densely cespitose, cushion-forming; caudex much-branched, woody. | Plants annual; taproot slender. |
Stems | prostrate, much-branched, 5–10 cm, puberulent. |
prostrate, sprawling-spreading, much-branched, 10–35 cm, short-pubescent. |
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. |
stipules ovate, 3–7.5 mm, apex acuminate, entire; blade oblanceolate to spatulate, 5–18 × 1.5–3.5 mm, leathery, apex obtuse to very short-cuspidate, densely appressed-pubescent. |
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. |
5-merous, ± extended-urceolate, with enlarged hypanthium and calyx constricted proximally, flaring distally, 1.8–2 mm, pubescent with short, hooked hairs proximally; sepals red-brown, often finely striped or mottled, veins absent, spatulate-obovate to suboblong, 0.8–1.3 mm, leathery to rigid, margins white, 0.1–0.2 mm wide, papery, apex terminated by awn, broadly rounded, awn divergent, 0.3–0.4 mm, broadly conic in proximal 1/3–1/2 with white, scabrous spine; staminodes filiform, 0.5–0.6 mm; style 1, 0.7–0.8 mm, cleft in distal 1/5. |
Utricles | ovoid, 1.3–1.5 mm, smooth, glabrous. |
globose, 0.8–1 mm, smooth, glabrous. |
Cymes | terminal and subterminal, occasionally axillary, 3–7-flowered, congested, clusters 3–8 mm wide. |
|
2n | = 32. |
|
Paronychia pulvinata |
Paronychia jonesii |
|
Phenology | Flowering summer. | Flowering spring–summer. |
Habitat | Rocky slopes and summit screes in alpine regions | Sandy, open grounds |
Elevation | 3300-4200 m (10800-13800 ft) | 10-40 m (0-100 ft) |
Distribution |
CO; UT; WY
|
TX |
Discussion | Paronychia jonesii most closely resembles P. drummondii and is known only from southeastern coastal Texas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 5, p. 40. | FNA vol. 5, p. 39. |
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia |
Sibling taxa | ||
Synonyms | P. pulvinata var. longiaristata | |
Name authority | A. Gray: Proc. Acad. Nat. Sci. Philadelphia 15: 58. (1864) | M. C. Johnston: Wrightia 2: 250. (1963) |
Web links |