Eremothera refracta

(S. Watson) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 210. 2007.

Basionym: Oenothera refracta S. Watson Proc. Amer. Acad. Arts 17: 373. 1882
Synonyms: Camissonia refracta (S. Watson) P. H. Raven O. deserti M. E. Jones Sphaerostigma deserti (M. E. Jones) A. Heller S. refractum (S. Watson) Small
Treatment appears in FNA Volume 10.
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Herbs sparsely strigillose, some­times also glandular puber­ulent, especially in inflorescence. Stems usually well branched from base and distally, 6–45 cm, flowering only distally. Leaves cauline, with lower ones clustered near base and these often withered by flowering, 2–6 (–8) × 0.1–0.8 cm; petiole 0–2 cm; blade narrowly lanceolate to narrowly elliptic-lanceolate or narrowly oblanceolate, those distally on stems usually linear to linear-lanceolate, margins usually sparsely and weakly denticulate, sometimes sinuate-toothed. Inflorescences nodding. Flowers opening at sunset; floral-tube 4–7 mm, villous in proximal 1/2 inside; sepals 4–6 mm; petals white, fading pinkish, 3.5–10 mm; episepalous filaments 2–4.5 mm, epipetalous filaments slightly shorter, anthers 1.5–2.5 mm; style 9–13 mm, villous proximally, stigma 1–1.5 mm diam., exserted beyond anthers at anthesis. Capsules narrowly cylindrical throughout, spreading or reflexed, straight to ± contorted, terete, 20–50 × 0.7–1 mm, regularly but tardily dehiscent. Seeds monomorphic, gray, 0.9–1.5 × 0.4–0.5 mm, finely reticulate. 2n = 14.


Phenology: Flowering Mar–May.
Habitat: Sandy desert slopes and flats.
Elevation: -30–1700 m.

Distribution

Ariz., Calif., Nev., N.Mex., Utah.

Discussion

Eremothera refracta is known from Esmeralda, southern Nye, and Clark counties in Nevada, Washington County in Utah, south throughout the Mojave and Colorado deserts of Inyo, San Bernardino, Imperial, central and eastern Riverside, and eastern Kern and San Diego counties in California, Mohave, Yuma, and western Pima counties in Arizona, and a single collection well east of normal range has been seen from Hidalgo County in New Mexico (east of Lordsburg, Jones in 1930, POM). P. H. Raven (1969) determined E. refracta to be self-incompatible.

Selected References

None.

Lower Taxa

None.
... more about "Eremothera refracta"
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Warren L. Wagner +
(S. Watson) W. L. Wagner & Hoch +
papillose +
Oenothera refracta +
indehiscent +  and loculicidal +
entire +, sinuate-toothed +, serrulate +  and denticulate +
narrowly lanceolate +  and narrowly elliptic-lanceolate or narrowly oblanceolate +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
reflexed +  and spreading +
terete +  and cylindrical +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Ariz. +, Calif. +, Nev. +, N.Mex. +  and Utah. +
-30–1700 m. +
reddish green +  and white +
exfoliating +
0.2 cm2 mm <br />0.002 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
basifixed +  and versatile +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
actinomorphic +
straight +
loculicidal +
4-angled +, terete +  and cylindrical +
Sandy desert slopes and flats. +
strigillose +
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
deciduous +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sinuate-toothed +  and denticulate +
numerous +  and 1 +
fading pinkish +  and white +
0.35 cm3.5 mm <br />0.0035 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Mar–May. +
Syst. Bot. Monogr. +
basal +  and cauline +
clavate +  and globose +
monomorphic +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
7 +  and numerous +
sculptured +  and smooth +
truncate-ellipsoid +, narrowly obovoid +  and oblanceoloid +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
in pairs +  and singly +
purple +, pink +, red +  and green +
deciduous +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
parenchymatous +
parietal +, axile +  and placentation +
unequal +
aquatic +, amphibious +  and terrestrial +
episepalous +
2 times as many or as many as sepals +
prostrate +  and decumbent +
ascending +  and erect +
usually linear +  and linear-lanceolate +
6 cm60 mm <br />0.06 m <br /> (45 cm450 mm <br />0.45 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
subglobose +
subsessile +  and petiolate +
intrapetiolar +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
aquatic +, amphibious +  and terrestrial +
non-papillate +
Camissonia refracta +, O. deserti +, Sphaerostigma deserti +  and S. refractum +
Eremothera refracta +
Eremothera +
species +
3(-5)-aperturate +
smooth +  and erose +
papillate +