Minuartia uniflora
Minuartia cismontana
one-flower stitchwort
cismontane minuartia
filiform.
filiform.
erect to ascending, green, 7–20 cm, glabrous, internodes of stems 1–7 times as long as leaves.
erect, green or reddish purple, (5–)8–20(–25) cm, glabrous, internodes of all stems 5–7 times as long as leaves.
not overlapping, connate proximally, with tight, herbaceous or scarious sheath 0.1–0.3 mm;
blade straight to outwardly curved, widely spreading, green, flat, 1-veined abaxially, especially proximal, narrowly lanceolate to oblong, commonly linear, 2–20 × 0.3–1.5 mm, flexuous, margins not thickened, scarious, smooth, apex green to purple, rounded to acute, dull, glabrous;
axillary leaves poorly developed.
not overlapping, connate proximally, with loose, scarious sheath 0.1–0.3 mm;
blade green or reddish purple, 3-veined proximally, midvein prominent abaxially, lateral veins 0.2–0.25 times as long as blade, straight to outwardly curved, flat, lance-attenuate to linear, 2–7(–9) × 0.5–1.2(–1.8) mm, flexuous, margins not thickened, scarious proximally, smooth, apex green or purple, rounded to acute, often mucronate, shiny, glabrous;
axillary leaves occasionally present.
7–25+-flowered, open cymes;
bracts subulate to ovate, herbaceous, margins scarious.
5–20-flowered, open cymes;
bracts subulate, herbaceous, often scarious-margined proximally.
0.5–5 cm, glabrous.
(0.7–)1–3(–3.5) cm, glabrous.
hypanthium disc-shaped;
sepals obscurely veined, ovate to elliptic or lanceolate (herbaceous portion elliptic to lanceolate), 2–3.5 mm, not enlarging in fruit, apex green, obtuse to rounded, not hooded, glabrous;
petals oblanceolate to spatulate, 1.5–2.5 times as long as sepals, apex rounded, entire to shallowly notched.
hypanthium disc-shaped;
sepals strongly 3(–5)-veined, lance-linear to lanceolate (herbaceous portion narrowly lanceolate to lance-oblong), 3.2–5.5 mm, not enlarging in fruit, apex green to purple, acute, not hooded, glabrous;
petals oblanceolate to oblong-elliptic, 1–1.5 times as long as sepals, apex obtuse to rounded, entire.
on stipe shorter than 0.1 mm, pyramidal-ovoid, 3.5–4 mm, longer than sepals.
on stipe about 0.2 mm, ± ovoid, 3.5–5.8 mm, equaling or longer than sepals.
yellowish brown, suborbiculate with radicle obscure, slightly compressed, 0.4–0.6 mm, tuberculate;
tubercles low, rounded.
brown or reddish, asymmetically reniform with radicle prolonged into beak, not compressed, 0.7–1 mm, minutely papillate.
= 14.
Minuartia uniflora
Minuartia cismontana
Minuartia alabamensis was originally described to accommodate much-reduced plants from Alabama (J. F. McCormick et al. 1971). Subsequent studies have shown them to be conspecific with M. uniflora (R. Wyatt 1984).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Minuartia cismontana is closely related to M. californica and M. pusilla, and has been overlooked as the former for many years. Phenology and elevation appear to segregate the species in areas of California where the ranges of M. cismontana and M. californica overlap (R. J. Meinke and P. F. Zika 1992).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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