Oenothera tetraptera

Cavanilles

Icon. 3: 40, plate 279. 1796.

Synonyms: Hartmannia latiflora (Seringe) Rose H. tetraptera (Cavanilles) Small Oenothera latiflora Seringe O. tetraptera var. immutabilis H. Léveillé Xylopleurum tetrapterum (Cavanilles) Raimann
Treatment appears in FNA Volume 10.

Herbs annual or perennial, strigillose and also hirsute; from a slender taproot. Stems 15–50 cm. Leaves 2.5–10 × 0.6–2.5 cm; petiole 0.2–2.2 cm; blade usually lanceolate to oblanceolate, sometimes elliptic, margins weakly serrate to sinuate-pinnatifid. Flowers 1–3 opening per day near sunset; buds with free tips 0.5–3 mm; floral-tube 10–30 mm; sepals 20–40 mm; petals white, fading pink, 20–43 mm; filaments 12–18 mm, anthers 5–10 mm, pollen 85–100% fertile; style 19–67 mm, stigma exserted beyond anthers at anthesis. Capsules broadly clavate or obovoid, 20–51 × 5–7 mm, winged, wings 2–4 mm, valve surface with prominent midrib, proximal stipe 8–45 mm; sessile. Seeds narrowly obovoid, 1–1.5 × 0.5–0.7 mm. 2n = 14.


Phenology: Flowering Feb–May.
Habitat: Alluvial flats, open areas, sandy soil, weedy sites.
Elevation: 10–300[–2000] m.

Distribution

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Tex., Mexico, West Indies (Jamaica), Central America, n South America, widely in temperate Europe, Asia, s Africa, Australia

Discussion

In the flora area, Oenothera tetraptera is known only from southern Texas. Oenothera tetraptera presumably has become naturalized in South America (Argentina, Bolivia, Colombia, Ecuador, Venezuela), West Indies (Jamaica), Europe, Asia, South Africa, and Australia.

Oenothera candida Dumont Courset is a superfluous name, as is O. candida Bellardi ex Colla, and they both pertain here. The name Hartmannia macrantha Spach is illegitimate and pertains here.

Selected References

None.

Lower Taxa

None.
... more about "Oenothera tetraptera"
0.5 cm5 mm <br />0.005 m <br /> - 1 cm10 mm <br />0.01 m <br /> +
acuminate +, obtuse +  and rounded +
Warren L. Wagner +
Cavanilles +
pale green +  and yellow usually fading orange purple pale-yellow reddish or whitish +
pedicel-like +
indehiscent +  and loculicidal +
weakly serrulate +  and subentire sinuate-pinnatifid or coarsely sinuate-dentate +
usually lanceolate +  and oblanceolate +
terete +
indehiscent +  and dehiscent +
2 cm20 mm <br />0.02 m <br /> - 5.1 cm51 mm <br />0.051 m <br /> +
obovoid +  and clavate +
leathery +  and hard +
0.5 cm5 mm <br />0.005 m <br /> - 0.7 cm7 mm <br />0.007 m <br /> +
Tex. +, Mexico +, West Indies - Jamaica +, Central America +, n South America +, widely in temperate Europe +, Asia +, s Africa +  and Australia +
10–300[–2000] m. +
whitish +  and green +
exfoliating +
basifixed +  and versatile +
1.2 cm12 mm <br />0.012 m <br /> - 1.8 cm18 mm <br />0.018 m <br /> +
hispid +, lanate +  and glabrous +
1 cm10 mm <br />0.01 m <br /> - 3 cm30 mm <br />0.03 m <br /> +
zygomorphic +  and actinomorphic +
unscented +
1 +  and 3 +
curved +  and straight +
indehiscent +  and dehiscent +
4-angled +, terete +, tapering +, cylindrical +, ellipsoid +, clavate +, ovoid ellipsoid +  and cylindrical rhombic-obovoid or globose +
Alluvial flats, open areas, sandy soil, weedy sites. +
perennial +  and annual +
suffrutescent +
hirsute +  and strigillose +
nodding +  and erect +
deciduous +
2.5 cm25 mm <br />0.025 m <br /> - 10 cm100 mm <br />0.1 m <br /> +
1.8 cm18 mm <br />0.018 m <br /> - 7 cm70 mm <br />0.07 m <br /> +
0.6 cm6 mm <br />0.006 m <br /> - 2.5 cm25 mm <br />0.025 m <br /> +
weakly serrate +  and sinuate-pinnatifid +
pedicellate +  and sessile +
1 +  and 8 +
fading pink +  and white +
obovate +  and obcordate +
2 cm20 mm <br />0.02 m <br /> - 4.3 cm43 mm <br />0.043 m <br /> +
0.2 cm2 mm <br />0.002 m <br /> - 2.2 cm22 mm <br />0.022 m <br /> +
Flowering Feb–May. +
0.8 cm8 mm <br />0.008 m <br /> - 4.5 cm45 mm <br />0.045 m <br /> +
basal +  and cauline +
2 +  and 1 +
clavate +  and globose +
0.1 cm1 mm <br />0.001 m <br /> - 0.15 cm1.5 mm <br />0.0015 m <br /> +
sculptured +  and smooth +
obovoid +
reduced +
0.05 cm0.5 mm <br />5.0e-4 m <br /> - 0.07 cm0.7 mm <br />7.0e-4 m <br /> +
purple +, pink +, red +  and green +
deciduous +
2 cm20 mm <br />0.02 m <br /> - 4 cm40 mm <br />0.04 m <br /> +
parietal +, axile +  and placentation +
unequal +
aquatic +, amphibious +  and terrestrial +
in 2 unequal series +  and subequal +
2 times as many or as many as sepals +
decumbent +  and ascending +
15 cm150 mm <br />0.15 m <br /> - 50 cm500 mm <br />0.5 m <br /> +
petiolate +  and sessile +
intrapetiolar +
pubescent +  and glabrous +
1.9 cm19 mm <br />0.019 m <br /> - 6.7 cm67 mm <br />0.067 m <br /> +
aquatic +, amphibious +  and terrestrial +
smooth +, reticulate +  and furrowed +
rugose +, papillose +  and non-papillate +
Hartmannia latiflora +, H. tetraptera +, Oenothera latiflora +, O. tetraptera var. immutabilis +  and Xylopleurum tetrapterum +
Oenothera tetraptera +
Oenothera sect. Leucocoryne +
species +
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 +
0.2 cm2 mm <br />0.002 m <br /> - 0.4 cm4 mm <br />0.004 m <br /> +