Paronychia rugelii |
Paronychia virginica |
|
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Rugel's nailwort, sand squares |
Appalachian nailwort, Virginia nailwort, yellow nailwort |
|
Habit | Plants annual; taproot filiform to slender. | Plants perennial; caudex branched, woody. |
Stems | erect, dichotomously branched, 5–50 cm, retrorsely to spreading- pubescent throughout. |
procumbent, branched from base, hirtellose; flowering stems 7–45 cm; sterile stems 3–10 cm. |
Leaves | stipules ovate-lanceolate, 2–6 mm, apex acuminate, entire; blade linear to linear-oblanceolate or linear-oblong, 3–25 × 1–2.3 mm, herbaceous, apex ± acute, moderately antrorsely puberulent. |
stipules narrowly lanceolate, 6–13 mm, apex acuminate, often deeply cleft; blade linear, 10–30 × 0.4–1 mm, leathery, apex short-spinose, minutely hirtellous to puberulent. |
Flowers | 5-merous, cylindric to narrowly lanceolate, with enlarged hypanthium and calyx cylindric to tapering distally, 2.3–3.5 mm, pubescent mostly proximal with hooked or usually straight hairs, sometimes with scattered straight hairs distally; sepals flecked or solid red-brown, white distally, midrib obscure, linear-lanceolate, 1.5–2 mm, papery, margins white, 0.1–0.2 mm wide, papery, apex terminated by mucro, hood obscure, narrowly rounded, mucro short-conic, ca. 0.1 mm, glabrous; staminodes filiform, widening proximally, 0.5–0.6 mm; style 1, cleft in distal 1/10. |
5-merous, narrowly ovoid, with enlarged hypanthium and calyx tapering gradually distally, 2.8–5.1 mm, glabrous to puberulent, especially proximally; sepals brown to yellowish, midrib and lateral pair of veins prominent, lanceolate to oblong-lanceolate, 2–2.9 mm, leathery to rigid, margins whitish, 0.1–0.2 mm wide, papery, apex terminated by awn, hood rounded-triangular, awn curved outward, green to red-brown, ± conic, 0.4–1.1 mm, scabrous, distinct spine absent; staminodes filiform, 0.8–1 mm; style 1, cleft in distal 1/5, 1.2–2 mm. |
Cymes | terminal and lateral, 15–50+-flowered, often forming large, congested clusters 5–30 mm wide. |
terminal, 3–10+-flowered, somewhat open to compact, often forming clusters 6–30 mm wide. |
Utricles | broadly ellipsoid to ± globose, 0.5–0.7 mm, smooth, glabrous. |
ovoid to obovoid, 1.8–2 mm, smooth, glabrous. |
Paronychia rugelii |
Paronychia virginica |
|
Phenology | Flowering late spring–fall. | Flowering summer–fall. |
Habitat | Woodlands, fields, clearings, roadsides, waste places | On or among rocks |
Elevation | 0-200 m (0-700 ft) | 700-1300 m (2300-4300 ft) |
Distribution |
FL; GA
|
AL; AR; DC; MD; MO; NC; OK; TN; TX; VA; WV
|
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Cory established var. scoparia for the western populations to reflect the disjunct distribution. Paronychia dichotoma (Linnaeus) Nuttall (1818), sometimes applied to this species, is a later homonym of P. dichotoma de Candolle (1805); see E. L. Core (1940). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 5, p. 41. | FNA vol. 5, p. 42. |
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia |
Sibling taxa | ||
Synonyms | Siphonychia rugelii, Gibbesia rugelii, Odontonychia interior, P. rugelii var. interior, Siphonychia interior | P. parksii, P. scoparia, P. virginica var. parksii, P. virginica var. scoparia |
Name authority | (Chapman) Shuttleworth ex Chapman: Fl. South. U.S. ed. 3, 397. (1897) | Sprengel: Syst. Veg. 1: 822. (1824) |
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