Paronychia canadensis |
Paronychia pulvinata |
|
---|---|---|
fork-chickweed, smooth fork whitlow-wort, smooth-fork nailwort |
Rocky Mountain nailwort |
|
Habit | Plants annual; taproot filiform to slender. | Plants perennial, densely cespitose, cushion-forming; caudex much-branched, woody. |
Stems | erect, dichotomously branched, 3–40 cm, ultimate branches filiform, glabrous. |
prostrate, much-branched, 5–10 cm, puberulent. |
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 ovate, 3–6 mm, apex subobtuse, entire; blade narrowly elliptic-oblong or oblong to narrowly elliptic-oblanceolate, 2–5 × 0.2–1.8(–2) mm, fleshy, apex obtuse to subacute, glabrous. |
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. |
mostly solitary at end of shoots, almost concealed by leaves.; flowers 5-merous, elliptic-oblong, with enlarged hypanthium and calyx straight to tapering distally, 2.5–2.8 mm, densely appressed-puberulent, sparsely so distally; sepals whitish to green, veins absent, narrowly oblong to ovate-oblong, 1.5–1.7 mm, papery to herbaceous, margins white, 0.2–0.3 mm wide, papery, apex with subterminal awn, hood ascending as continuation of sepal, broadly rounded to notched, awn erect, white, 0.3–0.6(–1) mm, ± glabrous spine; staminodes filiform, 0.7–0.9 mm; style 1, cleft in distal 1/3, 0.8–1 mm. |
Cymes | diffuse, flowers solitary (paired) in axils of leafy bracts. |
|
Utricles | ovoid to globose, ca. 0.5 mm, granular in distal 1/2, glabrous. |
ovoid, 1.3–1.5 mm, smooth, glabrous. |
2n | = 32. |
|
Paronychia canadensis |
Paronychia pulvinata |
|
Phenology | Flowering spring–fall. | Flowering summer. |
Habitat | Woodlands, thickets, fields, clearings, roadsides, waste places | Rocky slopes and summit screes in alpine regions |
Elevation | 0-1300 m (0-4300 ft) | 3300-4200 m (10800-13800 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
|
CO; UT; WY
|
Source | FNA vol. 5, p. 34. | FNA vol. 5, p. 40. |
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia |
Sibling taxa | ||
Synonyms | Queria canadensis, Anychia canadensis | P. pulvinata var. longiaristata |
Name authority | (Linnaeus) Alph. Wood: Class-Book Bot. ed. s.n.(b), 262. (1861) | A. Gray: Proc. Acad. Nat. Sci. Philadelphia 15: 58. (1864) |
Web links |