Oenothera hartwegii subsp. pubescens

(A. Gray) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 212. 2007.

Basionym: Oenothera greggii var. pubescens A. Gray Smithsonian Contr. Knowl. 3(5): 72. 1852
Synonyms: Calylophus hartwegii subsp. pubescens (A. Gray) Towner & P. H. Raven C. hartwegii var. pubescens (A. Gray) Shinners Galpinsia camporum Wooton & Standley G. greggii (A. Gray) Small G. interior Small G. lampasana (Buckley) Wooton & Standley O. camporum (Wooton & Standley) Tidestrom O. greggii A. Gray O. greggii var. lampasana (Buckley) Munz O. interior (Small) G. W. Stevens O. lampasana Buckley
Treatment appears in FNA Volume 10.

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.


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.

Distribution

Ariz., Colo., Kans., N.Mex., Okla., Tex., Mexico (Coahuila), Mexico (Durango)

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.

Selected References

None.

Lower Taxa

None.

No values specified.

0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Warren L. Wagner +
(A. Gray) W. L. Wagner & Hoch +
pale green +  and yellow usually fading orange purple pale-yellow reddish or whitish +
subcordate +  and truncate +
Oenothera greggii var. pubescens +
indehiscent +  and loculicidal +
serrate +, serrulate +  and entire +
subentire +  and entire +
narrowly lanceolate +  and ovate +
reduced +
terete +
curved +  and straight +
tapering +, cylindrical +  and obtusely 4-angled +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Ariz. +, Colo. +, Kans. +, N.Mex. +, Okla. +, Tex. +, Mexico (Coahuila) +  and Mexico (Durango) +
200–2100 m. +
gray +  and brown +
exfoliating +
basifixed +  and versatile +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
5 cm50 mm <br />0.05 m <br /> (6 cm60 mm <br />0.06 m <br />) +
hispid +, lanate +  and glabrous +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
zygomorphic +  and actinomorphic +
curved +  and straight +
indehiscent +  and dehiscent +
4-angled +, terete +, tapering +, cylindrical +, ellipsoid +, clavate +, ovoid ellipsoid +  and cylindrical rhombic-obovoid or globose +
Colonial in moderately dry, open places, plains, hills, sandy to gravelly soil, limestone or gypsum, grasslands with Juniperus and Prosopis. +
perennial +
suffrutescent +
puberulent +, strigillose +, hirtellous +, short-pilose +  and pubescent +
nodding +  and erect +
deciduous +
0.6 cm6 mm <br />0.006 m <br /> (4 cm40 mm <br />0.04 m <br />) +
small +  and reduced +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
serrulate +  and entire +
crinkled-undulate +
not keeled +
pedicellate +  and sessile +
1 +  and 8 +
pale-purple +, pinkish +, fading pale +  and yellow +
suborbiculate +  and rhombic or obcordate +
1.2 cm12 mm <br />0.012 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering Mar–Oct. +
obovate +  and spatulate +
Syst. Bot. Monogr. +
basal +  and cauline +
clavate +  and globose +
sculptured +  and smooth +
obovoid +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
purple +, pink +, red +  and green +
deciduous +
0.9 cm9 mm <br />0.009 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
parietal +, axile +  and placentation +
subequal +
aquatic +, amphibious +  and terrestrial +
in 2 unequal series +  and subequal +
2 times as many or as many as sepals +
unbranched +  and densely branched +
erect +  and ascending +
1 +  and many +
4 cm40 mm <br />0.04 m <br /> (60 cm600 mm <br />0.6 m <br />) +
quadrangular +
petiolate +  and sessile +
intrapetiolar +
6.5 cm65 mm <br />0.065 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
pubescent +  and glabrous +
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
aquatic +, amphibious +  and terrestrial +
smooth +, reticulate +  and furrowed +
rugose +, papillose +  and non-papillate +
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 +  and O. lampasana +
Oenothera hartwegii subsp. pubescens +
Oenothera hartwegii +
subspecies +
3(-5)-aperturate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
woody +  and hard +
smooth +  and erose +
papillate +