Paronychia fastigiata |
Paronychia herniarioides |
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clusterstem nailwort, fork-chickweed, hairy fork nailwort, hairy fork whitlow-wort |
coastal-plain nailwort |
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Habit | Plants annual; taproot filiform to slender. | Plants annual, matted; taproot filiform. | ||||||||
Stems | erect, usually much-branched, 4–30 cm, retrorsely to spreading-pubescent mostly on 1 side. |
prostrate to erect, dichotomously branched, 3–20 cm, retrorsely to spreading- pubescent throughout. |
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Leaves | stipules subulate to lanceolate, 0.5–4.5 mm, apex acuminate, sometimes fimbriate; blade usually dotted or blotched, oblanceolate to elliptic or obovate, 2–25 × 0.5–7(–10) mm, herbaceous to leathery, apex subobtuse to acute or cuspidate, glabrous or occasionally with very few scattered trichomes along midrib. |
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. |
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Inflorescences | diffuse, flowers solitary (paired) in axils of leafy bracts. |
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Flowers | 5-merous, short-cylindric, with enlarged hypanthium and calyx ± cylindric, 1.1–1.6 mm, glabrous or with few scattered hairs; sepals greenish to brownish, veins absent, linear-oblong, 1–1.2 mm, leathery to rigid, margins white to translucent, 0.05–0.1 mm wide, scarious, apex terminated by mucro, hood narrowly rounded, mucro short-conic, 0.05–0.3 mm, ± minutely scabrous; staminodes absent; styles 2, 0.07–0.6(–0.7) mm. |
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. |
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Cymes | terminal, 25–70+-flowered, branched, loose to compact, forming clusters 3–10 mm wide. |
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Utricles | obovoid to obconic, 0.7–1 mm, minutely papillate. |
ellipsoid to subglobose, 0.5–0.8 mm, essentially smooth, glabrous. |
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2n | = 32, 36. |
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Paronychia fastigiata |
Paronychia herniarioides |
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Phenology | Flowering spring–fall. | |||||||||
Habitat | Sandy ridges, dunes, pine/oak woodland | |||||||||
Elevation | 0-300 m (0-1000 ft) | |||||||||
Distribution |
AL; AR; CT; DC; DE; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; WI; WV; ON; QC
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FL; GA; NC; SC
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Discussion | Varieties 3 (3 in the flora). The varieties here recognized are sympatric over at least portions of their ranges. A detailed study on infraspecific variation within Paronychia fastigiata is warranted. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 5, p. 37. | FNA vol. 5, p. 38. | ||||||||
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Anychia fastigiata | Anychia herniarioides, Anychiastrum herniarioides, Gastronychia herniarioides | ||||||||
Name authority | (Rafinesque) Fernald: Rhodora 38: 421. (1936) | (Michaux) Nuttall: Gen. N. Amer. Pl. 1: 159. (1818) | ||||||||
Web links |