Flora of North America species comparison

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Oenothera hartwegii subsp. fendleri

Oenothera subsect. Salpingia
Photo is of parent taxon
Habit Herbs usually glabrous throughout, sometimes glandular puberulent on distal parts, especially on ovaries.
Leaves

1–5 × 0.15–1 cm, fascicles of small leaves to 1 cm (when present);

blade linear to oblanceolate or lanceolate, base attenuate to obtuse, rarely nearly clasping, margins entire or subentire, rarely undulate.

Flowers

buds with free tips 0.5–3 mm;

floral tube 30–50 mm;

sepals 9–28 mm;

petals 10–30 mm;

filaments 5–12 mm, anthers 5–13 mm;

style 40–75 mm.

2n

= 14.

Oenothera hartwegii subsp. fendleri

Oenothera subsect. Salpingia
Phenology Flowering Apr–Oct.
Habitat In scattered populations on clay or gravelly soil, sometimes calcareous, in grasslands, often with Juniperus and Prosopis, to woodlands with Juniperus, Pinus edulis, sometimes Pinus ponderosa.
Elevation 300–2200 m. (1000–7200 ft.)
Distribution
from FNA
AZ; KS; NM; OK; TX; Mexico (Chihuahua)
[BONAP county map]
Discussion

Subspecies fendleri is known from Barber, Comanche, and Morton counties, Kansas, south through western Oklahoma and scattered sites in the Texas Panhandle to eastern Chihuahua, central trans-Pecos Texas, central and western New Mexico, and east-central Arizona. It is the most distinctive subspecies in the complex.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Calylophus > subsect. Salpingia > Oenothera hartwegii
Sibling taxa
O. hartwegii subsp. filifolia, O. hartwegii subsp. hartwegii, O. hartwegii subsp. maccartii, O. hartwegii subsp. pubescens
Synonyms O. fendleri, Calylophus hartwegii subsp. fendleri, Galpinsia fendleri, G. hartwegii var. fendleri, O. hartwegii var. fendleri
Name authority (A. Gray) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 212. (2007)
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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