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hoary primrose, mealy primrose, silvery primrose

Habit Plants 2–46 cm, herbaceous; rhizomes thin, short; rosettes not clumped; vegetative parts usually heavily whitish or yellowish farinose, sometimes efarinose, especially in age.
Leaves

not aromatic, indistinctly petiolate;

petiole broadly winged;

blade without deep reticulate veins abaxially, elliptic to oblanceolate, 1–6 × 0.3–1.6 cm, thin, margins remotely denticulate, apex acute to obtuse, surfaces glabrous.

Inflorescences

4–19-flowered;

involucral bracts saccate, ± equal.

Pedicels

erect, thin, 3–9 mm, length ± 1 times bracts, stiff.

Flowers

homostylous;

calyx green, broadly cylindric, 4–10 mm;

corolla lavender, tube 4–10 mm, length 1 times calyx, eglandular, limb 4–8 mm diam., lobes 2–4 mm, apex emarginate.

Capsules

cylindric to ellipsoid, length 1.5–2 times calyx.

Seeds

without flanged edges, reticulate.

2n

= 54, 72.

Primula incana

Phenology Flowering summer.
Habitat Alkaline clay soil in floodplains and moist open meadows
Elevation 0-3500 m [0-11500 ft]
Discussion

Primula incana is usually heavily farinose, at least when young, and has relatively tall scapes and tight umbels of homostylous flowers. As with some species of the genus, anthesis often begins before the scape is fully elongated; plants at first are quite small, but elongate throughout anthesis and typically become relatively tall and lanky in age. This has led to confusion with other arctic species, especially P. stricta, which has considerably less farina, a shorter scape, and a more maritime distribution. In fruiting stage, P. incana has been confused with P. laurentiana, which has looser umbels throughout anthesis, larger flowers, and a more eastern distribution. Primula incana generally replaces P. laurentiana to the west and south of Hudson Bay. The single octoploid count for P. incana is questionable; the species appears to be consistently hexaploid in other counts.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Distribution
from FNA
AK; CO; ID; MT; ND; UT; WY; AB; BC; MB; NT; ON; SK; YT
[WildflowerSearch map]
[BONAP county map]
Parent taxa Primulaceae > Primula
Sibling taxa
P. alcalina, P. angustifolia, P. anvilensis, P. borealis, P. capillaris, P. cuneifolia, P. cusickiana, P. egaliksensis, P. laurentiana, P. mistassinica, P. nutans, P. parryi, P. pumila, P. rusbyi, P. specuicola, P. stricta, P. suffrutescens, P. tschuktschorum, P. veris
Synonyms P. americana, P. farinosa subsp. incana, P. farinosa var. incana
Name authority M. E. Jones: Proc. Calif. Acad. Sci., ser. 2, 5: 706. 1895 ,
Source Flora of North America vol. 8, p. 292.
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