Paronychia rugelii |
Paronychia congesta |
|
---|---|---|
Rugel's nailwort, sand squares |
Rio Grande nailwort |
|
Habit | Plants annual; taproot filiform to slender. | Plants perennial; caudex woody, branched. |
Stems | erect, dichotomously branched, 5–50 cm, retrorsely to spreading- pubescent throughout. |
erect, 6–10 cm, evenly puberulent with spreading hairs. |
Leaves | stipules ovate-lanceolate, 2–6 mm, apex acuminate, entire; blade linear to linear-oblanceolate or linear-oblong, 3–25 × 1–2.3 mm, herbaceous, apex ± acute, moderately antrorsely puberulent. |
stipules lanceolate, 4–7 mm, apex acuminate, entire; blade linear or needlelike, 4–7 × ca. 0.5 mm, leathery, apex spinulose, puberulous. |
Flowers | 5-merous, cylindric to narrowly lanceolate, with enlarged hypanthium and calyx cylindric to tapering distally, 2.3–3.5 mm, pubescent mostly proximal with hooked or usually straight hairs, sometimes with scattered straight hairs distally; sepals flecked or solid red-brown, white distally, midrib obscure, linear-lanceolate, 1.5–2 mm, papery, margins white, 0.1–0.2 mm wide, papery, apex terminated by mucro, hood obscure, narrowly rounded, mucro short-conic, ca. 0.1 mm, glabrous; staminodes filiform, widening proximally, 0.5–0.6 mm; style 1, cleft in distal 1/10. |
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. |
Cymes | terminal and lateral, 15–50+-flowered, often forming large, congested clusters 5–30 mm wide. |
terminal, 7–28+-flowered, branched, mostly congested in clusters 5–15 mm wide. |
Utricles | broadly ellipsoid to ± globose, 0.5–0.7 mm, smooth, glabrous. |
± ovoid, 0.8–0.9 mm, ± smooth, glabrous. |
Paronychia rugelii |
Paronychia congesta |
|
Phenology | Flowering late spring–fall. | Flowering spring–summer. |
Habitat | Woodlands, fields, clearings, roadsides, waste places | Thorn scrubland openings |
Elevation | 0-200 m (0-700 ft) | 200-300 m (700-1000 ft) |
Distribution |
FL; GA
|
TX |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 5, p. 41. | FNA vol. 5, p. 36. |
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia |
Sibling taxa | ||
Synonyms | Siphonychia rugelii, Gibbesia rugelii, Odontonychia interior, P. rugelii var. interior, Siphonychia interior | |
Name authority | (Chapman) Shuttleworth ex Chapman: Fl. South. U.S. ed. 3, 397. (1897) | Correll: Brittonia 18: 307. (1967) |
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