Flora of North America species comparison

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Oenothera pallida subsp. latifolia
Photo is of parent taxon
Habit Herbs perennial, densely strigillose throughout; from a taproot, lateral roots producing adventitious shoots.
Stems

usually several, branched from base, sometimes unbranched.
Leaves

rosette not present at anthesis, 1–5(–7) × (0.4–)0.7–1.5 cm;

blade narrowly ovate to oblong-lanceolate or lanceolate, margins shallowly sinuate-dentate or denticulate.
Flowers

buds with free tips 1–2 mm;

floral tube 15–40 mm;

sepals 12–30 mm;

petals 15–40 mm.
Capsules

spreading, straight or curved, sometimes contorted.
2n

= 14.

Oenothera pallida subsp. latifolia
Phenology Flowering Jun–Sep.
Habitat Open sites, sandy soil, dunes, rocky sites in grasslands.
Elevation 600–2000(–3100) m. (2000–6600(–10200) ft.)
Distribution
from FNA
CO; KS; NE; NM; OK; SD; UT; WY
[BONAP county map]
Discussion

Some collections from mostly disturbed sites in northern Utah (Cache, Salt Lake, Summit, and Tooele counties) have been identified as subsp. latifolia; it is not clear if they represent a disjunct distribution area of this subspecies, naturalized populations, or if they are pubescent forms of subsp. pallida.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Anogra > Oenothera pallida
Sibling taxa
O. pallida subsp. pallida, O. pallida subsp. runcinata, O. pallida subsp. trichocalyx
Synonyms O. pallida var. latifolia, Anogra cinerea, A. latifolia, A. pallida var. latifolia, O. latifolia
Name authority (Rydberg) Munz in N. L. Britton et al.: N. Amer. Fl., ser. 2, 5: 119. (1965)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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