Paronychia drummondii |
Paronychia congesta |
|
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Drummond's nailwort |
Rio Grande nailwort |
|
Habit | Plants annual or biennial; taproot filiform to slender. | Plants perennial; caudex woody, branched. |
Stems | sprawling t2o erect, nearly simple to much-branched especially distally, 7–35 cm, retrorsely pubescent on 1 side or throughout. |
erect, 6–10 cm, evenly puberulent with spreading hairs. |
Leaves | stipules lanceolate to ovate, 5–10 mm, apex acuminate, entire; blade linear-oblong to oblanceolate, 5–30 × 1–7 mm, leathery, apex acute to cuspidate, moderately antrorsely pubescent. |
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, ± short-campanulate, with prominently enlarged hypanthium and calyx flaring distally, (1.5–)2–2.3 mm, pubescent proximally with short, hooked hairs; sepals greenish to brownish or red-brown, white distally, veins absent, oblong to obovate, 1–1.5 mm, leathery to rigid, margins white, 0.2–0.3 mm wide, papery, apex terminating in divergent awn, hood broadly rounded, awn white, stout-conic, 0.5–0.6 mm, glabrous; staminodes filiform, ± 0.3 mm; style 1, cleft in distal 1/5, 0.3–0.6 mm. |
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, 25+-flowered, much-branched but congested, clusters 5–20 mm wide. |
terminal, 7–28+-flowered, branched, mostly congested in clusters 5–15 mm wide. |
Utricles | ellipsoid to subglobose, 0.5–0.8 mm, minutely papillate distally. |
± ovoid, 0.8–0.9 mm, ± smooth, glabrous. |
Paronychia drummondii |
Paronychia congesta |
|
Phenology | Flowering spring–fall. | Flowering spring–summer. |
Habitat | Sandy woodlands, clearings, roadsides | Thorn scrubland openings |
Elevation | 0-100 m (0-300 ft) | 200-300 m (700-1000 ft) |
Distribution |
LA; OK; TX
|
TX |
Discussion | Chaudhri described two subspecies of Paronychia drummondii based on differences in leaf pubescence, flower size, and style length. We follow B. L. Turner (1983b), who noted that many specimens demonstrate intermediate characteristics, suggesting that taxonomic recognition not be given to the extremes. (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. 36. | FNA vol. 5, p. 36. |
Parent taxa | Caryophyllaceae > subfam. Paronychioideae > Paronychia | Caryophyllaceae > subfam. Paronychioideae > Paronychia |
Sibling taxa | ||
Synonyms | P. drummondii subsp. parviflora | |
Name authority | Torrey & A. Gray: Fl. N. Amer. 1: 170. (1838) | Correll: Brittonia 18: 307. (1967) |
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