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alcove primrose, cave primrose, cave-dwelling primrose

Habit Plants 10–25 cm, herbaceous; rhizomes thin, short; rosettes not clumped; vegetative parts heavily white-farinose.
Leaves

not aromatic, indistinctly petiolate;

petiole broadly winged;

blade without deep reticulate veins abaxially, spatulate, 8–15 × 2 cm, thin, margins irregularly and sharply dentate to sinuate-dentate, apex obtuse to acute, surfaces glabrous.

Inflorescences

(6–)10–25-flowered;

involucral bracts plane, ± equal.

Pedicels

erect, thin, 10–30 mm, length 2–5 times bracts, flexuous.

Flowers

heterostylous;

calyx green, campanulate, 3–5 mm;

corolla lavender, tube 8–10 mm, length 2 times calyx, eglandular, limb 10–16 mm diam., lobes 5–8 mm, apex emarginate.

Capsules

ellipsoid, length 1–2 times calyx.

Seeds

without flanged edges, reticulate.

2n

= 18.

Primula specuicola

Phenology Flowering summer.
Habitat Moist seepage areas on carbonate bedrock in canyons
Elevation 800-2500 m (2600-8200 ft)
Distribution
from FNA
AZ; UT
[WildflowerSearch map]
[BONAP county map]
Discussion

Primula specuicola has relatively large corollas, relatively long pedicels, and irregularly and sharply dentate to sinuate-dentate leaves with conspicuous farina. It is a characteristic member of hanging-garden communities along the canyon walls of the Colorado River and its tributaries. Plants with a more exserted capsule were given the name P. hunnewellii; this appears to be only a minor variant that does not warrant infraspecific recognition.

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

Source FNA vol. 8, p. 294.
Parent taxa Primulaceae > Primula
Sibling taxa
P. alcalina, P. angustifolia, P. anvilensis, P. borealis, P. capillaris, P. cuneifolia, P. cusickiana, P. egaliksensis, P. incana, P. laurentiana, P. mistassinica, P. nutans, P. parryi, P. pumila, P. rusbyi, P. stricta, P. suffrutescens, P. tschuktschorum, P. veris
Synonyms P. hunnewellii
Name authority Rydberg: Bull. Torrey Bot. Club 40: 461. 1913 ,
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