Paronychia canadensis |
Paronychia jamesii |
|
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fork-chickweed, smooth fork whitlow-wort, smooth-fork nailwort |
James' nailwort, nailwort |
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Habit | Plants annual; taproot filiform to slender. | Plants perennial; caudex branched, woody. |
Stems | erect, dichotomously branched, 3–40 cm, ultimate branches filiform, glabrous. |
erect to ascending, much-branched, 10–35 cm, scabrous, puberulent to pubescent, sometimes glabrous with age. |
Leaves | stipules subulate to lanceolate, 0.5–4 mm, apex acuminate, entire; blade usually dotted or blotched, elliptic to obovate, 3–30 × 1–11 mm, herbaceous, apex acute to obtuse or cuspidate, glabrous. |
stipules lanceolate, 5–15 mm, apex acuminate, entire; blade linear, 7–25(–34) × 0.5–1 mm, leathery, apex obtuse to subacute or submucronate, pubescent to puberulent. |
Flowers | 5-merous, ± short-cylindric, with enlarged hypanthium and calyx cylindric, 0.9–1.3 mm, glabrous; sepals greenish to brownish, midrib and lateral pair of veins prominent, ovate to oblong, 0.5–1 mm, herbaceous, margins white to translucent, 0.03–0.1 mm wide, scarious, apex terminated by mucro, hood rounded-triangular, mucro triangular, 0.07–0.15 mm, glabrous; staminodes absent or indistinct; styles 2, 0.2–0.3 mm. |
5-merous, short-campanulate, with enlarged hypanthium and calyx widening somewhat distally, 1.8–2.8 mm, puberulent, glabrous to hirtellous distally; sepals green to red-brown, veins absent, oblong, 1.3–1.8 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, broadly rounded, awn widely divergent, 0.4–0.8 mm, conic in proximal 1/2–2/3 with yellowish, scabrous spine; staminodes filiform, 0.6–1 mm; style 1, cleft in distal 1/3–1/6, 0.8–1.2 mm. |
Cymes | diffuse, flowers solitary (paired) in axils of leafy bracts. |
terminal, 20–70-flowered, open, clusters 1–2 cm wide. |
Utricles | ovoid to globose, ca. 0.5 mm, granular in distal 1/2, glabrous. |
ellipsoid-ovoid, 0.8–1 mm, smooth, glabrous. |
Paronychia canadensis |
Paronychia jamesii |
|
Phenology | Flowering spring–fall. | Flowering summer–fall. |
Habitat | Woodlands, thickets, fields, clearings, roadsides, waste places | Limestone rocky ledges, slopes, hilltops, grasslands |
Elevation | 0-1300 m (0-4300 ft) | 500-2500 m (1600-8200 ft) |
Distribution |
AL; AR; CT; DC; DE; GA; IA; IL; IN; KS; KY; LA; MA; MD; MI; MN; MO; NC; NE; NH; NJ; NY; OH; OK; PA; RI; SC; TN; VA; VT; WI; WV; ON
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CO; KS; NE; NM; OK; TX; WY; Mexico (Chihuahua, Coahuila)
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Discussion | We agree with B. L. Turner (1983b) in not adopting the four varieties of Paronychia jamesii that Chaudhri recognized. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 5, p. 34. | FNA vol. 5, p. 39. |
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia |
Sibling taxa | ||
Synonyms | Queria canadensis, Anychia canadensis | P. jamesii var. hirsuta, P. jamesii var. parviflora, P. jamesii var. praelongifolia |
Name authority | (Linnaeus) Alph. Wood: Class-Book Bot. ed. s.n.(b), 262. (1861) | Torrey & A. Gray: Fl. N. Amer. 1: 170. (1838) |
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