Primula specuicola |
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alcove primrose, cave primrose, cave-dwelling primrose |
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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 |
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Phenology | Flowering summer. |
Habitat | Moist seepage areas on carbonate bedrock in canyons |
Elevation | 800-2500 m (2600-8200 ft) |
Distribution |
AZ; UT
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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 | |
Synonyms | P. hunnewellii |
Name authority | Rydberg: Bull. Torrey Bot. Club 40: 461. 1913 , |
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