Paronychia fastigiata
clusterstem nailwort, fork-chickweed, hairy fork nailwort, hairy fork whitlow-wort
erect, usually much-branched, 4–30 cm, retrorsely to spreading-pubescent mostly on 1 side.
stipules subulate to lanceolate, 0.5–4.5 mm, apex acuminate, sometimes fimbriate;
blade usually dotted or blotched, oblanceolate to elliptic or obovate, 2–25 × 0.5–7(–10) mm, herbaceous to leathery, apex subobtuse to acute or cuspidate, glabrous or occasionally with very few scattered trichomes along midrib.
5-merous, short-cylindric, with enlarged hypanthium and calyx ± cylindric, 1.1–1.6 mm, glabrous or with few scattered hairs;
sepals greenish to brownish, veins absent, linear-oblong, 1–1.2 mm, leathery to rigid, margins white to translucent, 0.05–0.1 mm wide, scarious, apex terminated by mucro, hood narrowly rounded, mucro short-conic, 0.05–0.3 mm, ± minutely scabrous;
staminodes absent;
styles 2, 0.07–0.6(–0.7) mm.
terminal, 25–70+-flowered, branched, loose to compact, forming clusters 3–10 mm wide.
obovoid to obconic, 0.7–1 mm, minutely papillate.
= 32, 36.
Paronychia fastigiata
Varieties 3 (3 in the flora).
The varieties here recognized are sympatric over at least portions of their ranges. A detailed study on infraspecific variation within Paronychia fastigiata is warranted.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Styles 0.3-0.6(-0.7) mm, often bent or contorted | var. pumila |
1. Styles 0.07-0.25(-0.3) mm, straight | → 2 |
2. Sepal cusps 0.2-0.3 mm | var. nuttallii |
2. Sepal cusps 0.05-0.15 mm | var. fastigiata |
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