Paronychia herniarioides |
Paronychia depressa |
|
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coastal-plain nailwort |
spreading nailwort |
|
Habit | Plants annual, matted; taproot filiform. | Plants perennial, often matted; caudex branched, woody. |
Stems | prostrate to erect, dichotomously branched, 3–20 cm, retrorsely to spreading- pubescent throughout. |
prostrate to sprawling, much-branched, 8–15 cm, scabrous-puberulent to puberulent throughout. |
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, 2–8 mm, apex acuminate, entire; blade linear, 8–15(–23) × 0.5–1 mm, leathery, apex shortly cuspidate, puberulent. |
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, ± ovate, with prominently enlarged hypanthium and calyx tapering only slightly distally, 2.3–3.5 mm, puberulent; sepals green to purple-brown, midrib and lateral pair of veins ± obscure, oblong to lanceolate-oblong, 1.7–2 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, hood prominent, rounded-triangular, awn divergent, conic in proximal 1/2–2/3 with yellowish, scabrous spine 0.7–0.9 mm; staminodes filiform, 0.5–0.8 mm; style 1, cleft in distal 1/3–2/3, 0.8–1.4 mm. |
Utricles | ellipsoid to subglobose, 0.5–0.8 mm, essentially smooth, glabrous. |
± ovoid, 0.8–0.9 mm, smooth, glabrous. |
Cymes | terminal, 3–7-flowered, branched, congested, in clusters 7–25 mm wide. |
|
2n | = 32. |
|
Paronychia herniarioides |
Paronychia depressa |
|
Phenology | Flowering spring–fall. | Flowering summer. |
Habitat | Sandy ridges, dunes, pine/oak woodland | Dry plains, rocky ridges, hillsides |
Elevation | 0-300 m (0-1000 ft) | 800-3000 m (2600-9800 ft) |
Distribution |
FL; GA; NC; SC
|
CO; SD; WY
|
Discussion | Paronychia depressa is considered to be closely related to the nearly allopatric P. jamesii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
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 | P. jamesii var. depressa, P. depressa var. brevicuspis, P. depressa var. diffusa |
Name authority | (Michaux) Nuttall: Gen. N. Amer. Pl. 1: 159. (1818) | (Torrey & A. Gray) Nuttall ex A. Nelson: Bull. Torrey Bot. Club 26: 236. (1899) |
Web links |