Paronychia herniarioides |
Paronychia congesta |
|
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coastal-plain nailwort |
Rio Grande nailwort |
|
Habit | Plants annual, matted; taproot filiform. | Plants perennial; caudex woody, branched. |
Stems | prostrate to erect, dichotomously branched, 3–20 cm, retrorsely to spreading- pubescent throughout. |
erect, 6–10 cm, evenly puberulent with spreading hairs. |
Leaves | 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. |
stipules lanceolate, 4–7 mm, apex acuminate, entire; blade linear or needlelike, 4–7 × ca. 0.5 mm, leathery, apex spinulose, puberulous. |
Inflorescences | diffuse, flowers solitary (paired) in axils of leafy bracts. |
|
Flowers | 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. |
5-merous, extended-urecolate, with prominent hypanthial bulge and calyx tapering somewhat distally, 2.8–3.1 mm, moderately pubescent with straight, spreading to appressed hairs generally throughout; sepals green to red-brown, veins absent or midrib and lateral pair of veins evident in fruit, lanceolate to oblong, 1.3–1.5 mm, leathery to rigid, margins translucent, less than 0.05 mm wide, scarious, apex terminated by awn, hood prominent, narrowly rounded, awn widely divergent, 0.5–0.7 mm, broadly conic in proximal 1/2–2/3 with yellowish, ± glabrous spine; staminodes subulate, ca. 0.5 mm; style 1, 2-lobed in distal 1/3–3/5, 0.5–0.7 mm. |
Utricles | ellipsoid to subglobose, 0.5–0.8 mm, essentially smooth, glabrous. |
± ovoid, 0.8–0.9 mm, ± smooth, glabrous. |
Cymes | terminal, 7–28+-flowered, branched, mostly congested in clusters 5–15 mm wide. |
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Paronychia herniarioides |
Paronychia congesta |
|
Phenology | Flowering spring–fall. | Flowering spring–summer. |
Habitat | Sandy ridges, dunes, pine/oak woodland | Thorn scrubland openings |
Elevation | 0-300 m (0-1000 ft) | 200-300 m (700-1000 ft) |
Distribution |
FL; GA; NC; SC
|
TX |
Discussion | Of conservation concern. Paronychia congesta is known only from two collections in Jim Hogg County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 5, p. 38. | FNA vol. 5, p. 36. |
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia |
Sibling taxa | ||
Synonyms | Anychia herniarioides, Anychiastrum herniarioides, Gastronychia herniarioides | |
Name authority | (Michaux) Nuttall: Gen. N. Amer. Pl. 1: 159. (1818) | Correll: Brittonia 18: 307. (1967) |
Web links |