Minuartia uniflora
Minuartia decumbens
one-flower stitchwort
lassicus stitchwort, The Lassics sandwort
filiform.
stout, woody.
erect to ascending, green, 7–20 cm, glabrous, internodes of stems 1–7 times as long as leaves.
ascending to erect, green, 4–15 cm, trailing stems to 30 cm, glabrous, internodes of flowering stems ca. 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.
overlapping proximally, all evenly spaced, connate proximally, with tight, scarious sheath 0.5–0.7 mm;
blade arcuate, green, flat, 3-veined, needlelike to subulate, 3–6(–9) × 0.7–2 mm, ± rigid, margins scarious proximally, apex green, blunt to ± acute, dull, glabrous;
axillary leaves present among vegetative leaves.
7–25+-flowered, open cymes;
bracts subulate to ovate, herbaceous, margins scarious.
5–20-flowered, open cymes;
bracts narrowly lanceolate, herbaceous, thinly scarious-margined.
0.5–5 cm, glabrous.
0.5–2.5 cm, sparsely stipitate-glandular.
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 dish-shaped;
sepals (1- or) 3-veined, narrowly lanceolate (herbaceous portion narrowly lanceolate), 5–6 mm, not enlarging in fruit, apex often purple, acute to acuminate, not hooded, sparsely stipitate-glandular;
petals broadly linear to oblong-elliptic, 0.7–0.9 times as long as sepals, apex rounded, entire to slightly emarginate.
on stipe shorter than 0.1 mm, pyramidal-ovoid, 3.5–4 mm, longer than sepals.
ellipsoid, 4–4.8 mm, shorter than sepals.
yellowish brown, suborbiculate with radicle obscure, slightly compressed, 0.4–0.6 mm, tuberculate;
tubercles low, rounded.
purplish brown, elliptic-oblong, ± compressed, 1.8–2.2 mm, tuberculate;
tubercles low, rounded.
= 14.
Minuartia uniflora
Minuartia decumbens
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.)
Of conservation concern.
Minuartia decumbens, like M. rosei and M. stolonifera, is restricted to serpentine soils of northwestern California, specifically to Mule Ridge in Trinity County. The three species are most closely related to the polymorphic M. nuttallii.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
WildflowerSearch
iNaturalist
USDA Plants Database
CA
