Paronychia depressa

(Torrey & A. Gray) Nuttall ex A. Nelson

Bull. Torrey Bot. Club 26: 236. 1899.

Common names: Spreading nailwort
Basionym: Paronychia jamesii var. depressa Torrey & A. Gray Fl. N. Amer. 1: 171. 1838
Synonyms: Paronychia depressa var. brevicuspis (A. Nelson) Chaudhri Paronychia depressa var. diffusa (A. Nelson) Chaudhri
Treatment appears in FNA Volume 5. Treatment on page 36. Mentioned on page 32.

Plants perennial, often matted; caudex branched, woody. Stems prostrate to sprawling, much-branched, 8–15 cm, scabrous-puberulent to puberulent throughout. Leaves: stipules lanceolate, 2–8 mm, apex acuminate, entire; blade linear, 8–15(–23) × 0.5–1 mm, leathery, apex shortly cuspidate, puberulent. Cymes terminal, 3–7-flowered, branched, congested, in clusters 7–25 mm wide. Flowers 5-merous, ± ovate, with prominently enlarged hypanthium and calyx tapering only slightly distally, 2.3–3.5 mm, puberulent; sepals green to purple-brown, midrib and lateral pair of veins ± obscure, oblong to lanceolate-oblong, 1.7–2 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, hood prominent, rounded-triangular, awn divergent, conic in proximal 1/2–2/3 with yellowish, scabrous spine 0.7–0.9 mm; staminodes filiform, 0.5–0.8 mm; style 1, cleft in distal 1/3–2/3, 0.8–1.4 mm. Utricles ± ovoid, 0.8–0.9 mm, smooth, glabrous. 2n = 32.

Phenology: Flowering summer.
Habitat: Dry plains, rocky ridges, hillsides
Elevation: 800-3000 m


Paronychia depressa is considered to be closely related to the nearly allopatric P. jamesii.

Selected References


Lower Taxa

... more about "Paronychia depressa"
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
(Torrey & A. Gray) Nuttall ex A. Nelson +
Paronychia jamesii var. depressa +
Spreading nailwort +
Colo. +, S.Dak. +  and Wyo. +
800-3000 m +
Dry plains, rocky ridges, hillsides +
Flowering summer. +
Bull. Torrey Bot. Club +
Paronychia depressa var. brevicuspis +  and Paronychia depressa var. diffusa +
Paronychia depressa +
Paronychia +
species +