Flora of North America species comparison

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Oenothera hartwegii subsp. pubescens
Photo is of parent taxon
Habit Herbs densely pubescent with mixture of hair types, always short-pilose, especially on ovary and stem, usually also hirtellous, especially on stem and distal parts, sometimes also strigillose, especially on leaves, or glandular puberulent distally.
Leaves

0.6–4 × 0.15–1.2 cm, fascicles of small leaves often absent or much reduced, sometimes to 1.5 cm;

blade very narrowly elliptic or narrowly lanceolate to ovate, base truncate or subcordate and clasping, rarely nearly clasping, margins entire or sparsely serrulate, rarely crinkled-undulate.
Flowers

buds with free tips 0.5–3 mm;

floral tube 20–50 mm;

sepals 9–26 mm;

petals 12–35 mm;

filaments 5–12 mm, anthers 4–13 mm;

style 25–70 mm.
2n

= 14, 28.

Oenothera hartwegii subsp. pubescens
Phenology Flowering Mar–Oct.
Habitat Colonial in moderately dry, open places, plains, hills, sandy to gravelly soil, limestone or gypsum, grasslands with Juniperus and Prosopis.
Elevation 200–2100 m. (700–6900 ft.)
Distribution
from FNA
AZ; CO; KS; NM; OK; TX; Mexico (Coahuila, Durango)
[BONAP county map]
Discussion

Subspecies pubescens occurs from Baca and Las Animas counties, Colorado, Clark, Meade, Morton, and Seward counties, Kansas, to western Oklahoma and the Texas Panhandle, throughout central and trans-Pecos Texas, west through eastern and southern New Mexico to central and southeastern Arizona, and also very locally in northern Mexico.

(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. fendleri, O. hartwegii subsp. filifolia, O. hartwegii subsp. hartwegii, O. hartwegii subsp. maccartii
Synonyms O. greggii var. pubescens, Calylophus hartwegii subsp. pubescens, C. hartwegii var. pubescens, Galpinsia camporum, G. greggii, G. interior, G. lampasana, O. camporum, O. greggii, O. greggii var. lampasana, O. interior, O. lampasana
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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