Paronychia drummondii |
Paronychia ahartii |
|
---|---|---|
Drummond's nailwort |
Ahart's nailwort, Ahart's paronychia |
|
Habit | Plants annual or biennial; taproot filiform to slender. | Plants annual; taproot filiform to stout. |
Stems | sprawling t2o erect, nearly simple to much-branched especially distally, 7–35 cm, retrorsely pubescent on 1 side or throughout. |
erect, tightly branched, 0.5–1.2 cm, glabrous. |
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 broadly ovate, 3–6 mm, apex acute to acuminate, entire; blade linear to oblanceolate, 2.5–7.5 × 0.5–1.2 mm, leathery, apex spinulose, glabrous. |
Inflorescences | flowers axillary, solitary. |
|
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, cylindric, with enlarged hypanthium and calyx cylindric to somewhat tapering distally, 4.2–5 mm, moderately hairy in proximal 1/2 with hooked to coiled hairs; sepals green to tan, veins absent, lanceolate to elliptic, 3.5–4.5 mm, margins translucent, 0.7–1+ mm wide, scarious (resembling stipules), apex (of herbaceous midrib) terminated by awn, hood apparently consisting of prominent, erect, scarious extension of margins split at apex, awn ± spreading, 1.5–2 mm, oblong extension of midrib in proximal 1/4, with white, wavy, threadlike spine; staminodes filiform, ca. 1 mm; style 1, cleft in distal 3/4, ca. 0.5 mm. |
Cymes | terminal, 25+-flowered, much-branched but congested, clusters 5–20 mm wide. |
|
Utricles | ellipsoid to subglobose, 0.5–0.8 mm, minutely papillate distally. |
ovoid, ca. 1.3 mm, papillose distally. |
Paronychia drummondii |
Paronychia ahartii |
|
Phenology | Flowering spring–fall. | Flowering spring. |
Habitat | Sandy woodlands, clearings, roadsides | Well-drained rocky outcrops, vernal pool edges, volcanic uplands |
Elevation | 0-100 m (0-300 ft) | 0-500 m (0-1600 ft) |
Distribution |
LA; OK; TX
|
CA |
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 ahartii, first collected in 1938, is known from three counties in north-central California. It most closely resembles P. arabica (Linnaeus) de Candolle, a species of northern African and Arabian deserts. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 5, p. 36. | FNA vol. 5, p. 33. |
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) | Ertter: Madroño 32: 87, fig. 1. (1985) |
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