Oenothera hartwegii subsp. maccartii

(Shinners) W. L. Wagner & Hoch

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

Basionym: Calylophus hartwegii var. maccartii Shinners Sida 1: 343. 1964
Treatment appears in FNA Volume 10.
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Herbs usually sparsely strig­illose, sometimes glandular puberulent. Leaves 0.6–3.5 × 0.1–0.6 cm, fascicles of small leaves to 1.5 cm usually present in axils; blade usually narrowly lanceolate to lanceolate or oblanceolate, rarely linear, base attenuate, margins subentire or serrulate, usually crinkled-undulate or undulate. Flowers: buds with free tips 1–6 mm; floral-tube 17–45 mm; sepals 11–27 mm; petals 10–30 mm; filaments 6–12 mm, anthers 5–9 mm; style 25–60 mm. 2n = 14, 28.


Phenology: Flowering Mar–Sep.
Habitat: Grasslands, sandy to gravelly soil, limestone, with Acacia, Larrea, Opuntia, Prosopis, and Yucca.
Elevation: 30–1500 m.

Distribution

Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (Tamaulipas)

Discussion

Subspecies maccartii occurs on the south Texas Plains and along the Rio Grande from Kinney, Milam, Uvalde, and Val Verde counties south to southeastern Coahuila, central Nuevo León, and northwestern Tamaulipas.

Selected References

None.

Lower Taxa

None.

No values specified.

0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Warren L. Wagner +
(Shinners) W. L. Wagner & Hoch +
pale green +  and yellow usually fading orange purple pale-yellow reddish or whitish +
attenuate +
Calylophus hartwegii var. maccartii +
indehiscent +  and loculicidal +
serrate +, serrulate +  and entire +
subentire +  and entire +
usually narrowly lanceolate +  and lanceolate or oblanceolate +
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 />) +
Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
30–1500 m. +
gray +  and brown +
exfoliating +
basifixed +  and versatile +
0.6 cm6 mm <br />0.006 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 +
1.7 cm17 mm <br />0.017 m <br /> (4.5 cm45 mm <br />0.045 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 +
Grasslands, sandy to gravelly soil, limestone, with Acacia, Larrea, Opuntia, Prosopis, and Yucca. +
perennial +
suffrutescent +
puberulent +
nodding +  and erect +
deciduous +
0.6 cm6 mm <br />0.006 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
serrate +  and entire +
undulate +, crinkled-undulate +, serrulate +  and subentire +
not keeled +
pedicellate +  and sessile +
1 +  and 8 +
pale-purple +, pinkish +, fading pale +  and yellow +
suborbiculate +  and rhombic or obcordate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering Mar–Sep. +
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 +
1.1 cm11 mm <br />0.011 m <br /> (2.7 cm27 mm <br />0.027 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 /> (6 cm60 mm <br />0.06 m <br />) +
aquatic +, amphibious +  and terrestrial +
smooth +, reticulate +  and furrowed +
rugose +, papillose +  and non-papillate +
Calylophus hartwegii +, Galpinsia hartwegii +  and Salpingia hartwegii +
Oenothera hartwegii subsp. maccartii +
Oenothera hartwegii +
subspecies +
3(-5)-aperturate +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
woody +  and hard +
smooth +  and erose +
papillate +