Paronychia rugelii |
Paronychia monticola |
|
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Rugel's nailwort, sand squares |
Livermore nailwort |
|
Habit | Plants annual; taproot filiform to slender. | Plants biennial but usually perennial; taproot stout. |
Stems | erect, dichotomously branched, 5–50 cm, retrorsely to spreading- pubescent throughout. |
erect to ascending, much-branched throughout, 10–30 cm, glabrous. |
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 lanceolate, 2–5 mm, apex acuminate to long-acuminate, entire; blade linear, 7–15(–19) × 0.4–0.8(–1) mm, leathery, apex subobtuse or minutely cuspidate, glabrous. |
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, ± short-campanulate, with enlarged hypanthium and calyx constricted proximally, 2.3–3.2 mm, hirtellous, glabrous distally; sepals red-brown, veins absent to obscure, narrowly oblong, 1.8–2.3 mm, leathery to rigid, margins translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, hood conspicuously rounded, awn divergently spreading, 1–1.5(–2) mm, ± broadly conic in proximal 1/3 with yellowish, glabrous spine; staminodes filiform, 0.7–0.9 mm; style 1, cleft in distal 1/5, 0.6–1.3 mm. |
Cymes | terminal and lateral, 15–50+-flowered, often forming large, congested clusters 5–30 mm wide. |
terminating branchlets, 10–40+-flowered, repeatedly forked and diffuse, clusters 1–3 cm wide. |
Utricles | broadly ellipsoid to ± globose, 0.5–0.7 mm, smooth, glabrous. |
ovoid, 1.2–1.5 mm, minutely papillose distally. |
Paronychia rugelii |
Paronychia monticola |
|
Phenology | Flowering late spring–fall. | Flowering summer–fall. |
Habitat | Woodlands, fields, clearings, roadsides, waste places | Mountain tops, rocky slopes and ledges, gravel beds of mountain streams |
Elevation | 0-200 m (0-700 ft) | ca 1200 m (ca 3900 ft) |
Distribution |
FL; GA
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TX; Mexico (Coahuila) |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 5, p. 41. | FNA vol. 5, p. 40. |
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. nudata |
Name authority | (Chapman) Shuttleworth ex Chapman: Fl. South. U.S. ed. 3, 397. (1897) | Cory: Rhodora 46: 279. (1944) |
Web links |