Paronychia rugelii |
Paronychia herniarioides |
|
---|---|---|
Rugel's nailwort, sand squares |
coastal-plain nailwort |
|
Habit | Plants annual; taproot filiform to slender. | Plants annual, matted; taproot filiform. |
Stems | erect, dichotomously branched, 5–50 cm, retrorsely to spreading- pubescent throughout. |
prostrate to erect, dichotomously branched, 3–20 cm, retrorsely to spreading- pubescent throughout. |
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 ovate-lanceolate, 0.5–7 mm, apex acuminate, entire; blade elliptic to oblong or ovate, or basal ones spatulate, 2–18 × 1–6 mm, herbaceous to leathery, apex mucronate to short-spine-tipped, moderately antrorsely pubescent. |
Inflorescences | diffuse, flowers solitary (paired) in axils of leafy bracts. |
|
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, broadly ovoid, with enlarged hypanthium and calyx tapering distally, 2–2.3 mm, glabrous to strigose; sepals brownish to yellowish, veins absent, subulate to lanceolate, 1–1.7 mm, leathery to rigid, margins whitish, 0.03–0.1 mm wide, papery, apex terminated by awn, hood obscure, small flange, awn straight to slightly divergent, yellow, 0.3–0.4 mm, scabrous to antrorsely strigose, spinose; staminodes narrowly triangular, 0.2–0.3 mm; style 1, cleft in distal 1/8, 0.7–0.9 mm. |
Cymes | terminal and lateral, 15–50+-flowered, often forming large, congested clusters 5–30 mm wide. |
|
Utricles | broadly ellipsoid to ± globose, 0.5–0.7 mm, smooth, glabrous. |
ellipsoid to subglobose, 0.5–0.8 mm, essentially smooth, glabrous. |
Paronychia rugelii |
Paronychia herniarioides |
|
Phenology | Flowering late spring–fall. | Flowering spring–fall. |
Habitat | Woodlands, fields, clearings, roadsides, waste places | Sandy ridges, dunes, pine/oak woodland |
Elevation | 0-200 m (0-700 ft) | 0-300 m (0-1000 ft) |
Distribution |
FL; GA
|
FL; GA; NC; SC
|
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 5, p. 41. | FNA vol. 5, p. 38. |
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 | Anychia herniarioides, Anychiastrum herniarioides, Gastronychia herniarioides |
Name authority | (Chapman) Shuttleworth ex Chapman: Fl. South. U.S. ed. 3, 397. (1897) | (Michaux) Nuttall: Gen. N. Amer. Pl. 1: 159. (1818) |
Web links |