Primula suffrutescens
Primula angustifolia
Sierra primrose, Sierran primrose
alpine primrose
not aromatic, indistinctly petiolate;
petiole winged;
blade without deep reticulate veins abaxially, cuneate-spatulate, 4 × 0.5–1 cm, succulent, margins crenate to dentate with 6–8 teeth, apex obtuse, surfaces glabrous.
not aromatic, indistinctly petiolate;
petiole narrowly winged;
blade without deep reticulate veins abaxially, linear-lanceolate to oblanceolate, 1–1.7 × 0.3–1 cm, thick, margins entire or remotely denticulate, apex spatulate, surfaces glabrous.
2–9-flowered;
involucral bracts plane at base, unequal.
1–2-flowered;
involucral bracts plane, unequal.
erect, thin, 4–12 mm, length 2–4 times bracts, stiff.
arcuate, thin, 3–10 mm, length 2–4 times bracts, flexuous.
heterostylous;
calyx green, urceolate, 4–8 mm;
corolla rose-pink, tube 6–10 mm, length 2 times calyx, glandular, limb 10–20 mm diam., lobes 5–10 mm, apex emarginate.
heterostylous;
calyx green, cylindric, 5–8 mm;
corolla usually bright rose-pink, sometimes white, tube 5–8 mm, length 0.8–1 times calyx, usually eglandular basally, sparsely glandular distally, limb (7–)10–15 mm diam., lobes 5–7 mm, apex almost entire or emarginate.
globose, length 0.7–0.8 times calyx.
cylindric, length 1 times calyx.
with flanged edges, reticulate.
without flanged edges, reticulate.
= 44.
= 44.
Primula suffrutescens
Primula angustifolia
Primula suffrutescens is unusual in the genus, and unique among North American representatives, in forming mats with semiwoody stems carrying withered remains of old leaves on the lower portions of the stems, and evergreen leaf clusters on the distal portions.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Primula angustifolia is a common component of the alpine flora in Colorado and is found occasionally in the mountains of northern New Mexico. A form with white corollas (var. helenae Pollard & Cockerell) occurs in populations with rose-pink corollas. Generally, P. angustifolia grows above treeline; some populations have been found in the upper subalpine zone among dwarf spruce or fir. Individuals in these protected areas tend to be more robust than those growing on exposed, windy sites on the tundra.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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WildflowerSearch
iNaturalist
USDA Plants Database
