Eremothera boothii subsp. boothii

Synonyms: Sphaerostigma lemmoniia. Nelson S. senex A. Nelson
Treatment appears in FNA Volume 10.

Herbs villous and glandular puberulent, especially in inflo­rescence. Stems usually 15–60 cm. Leaves not especially clustered toward base, mostly evenly distributed, 1–6 × 0.6–2.2 cm; petiole 0.1–2.6 cm; blade narrowly lanceolate, narrowly ovate, or ovate to elliptic, margins coarsely serrulate to sinuate-toothed. Inflorescences ± open. Flowers: floral-tube 4–8 mm; petals white, 3.5–9 mm. Capsules slightly curved outward to contorted, 1.3–1.9 mm diam. near base. Seeds dimorphic.


Phenology: Flowering Jun–Aug.
Habitat: Sandy flats, steep loose slopes, sagebrush shrublands, Joshua tree and pinyon-juniper woodlands.
Elevation: 900–2400 m.

Distribution

Ariz., Calif., Idaho, Nev., Oreg., Wash.

Discussion

Subspecies boothii is known from northwest Arizona; east-central California and west Nevada; south Idaho, east Oregon, south and east Washington.

Subspecies boothii intergrades broadly with subspp. alyssoides and intermedia in the Nevada portion of its range.

Selected References

None.

Lower Taxa

None.
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
Warren L. Wagner +
(Douglas) W. L. Wagner & Hoch +
papillose +
Oenothera boothii +
indehiscent +  and loculicidal +
entire +, sinuate-toothed +, serrulate +  and denticulate +
ovate +  and elliptic +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
spreading +  and curved downward +
4-angled +, terete +  and cylindrical +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
Ariz. +, Calif. +, Idaho +, Nev. +, Oreg. +  and Wash. +
900–2400 m. +
reddish green +  and white +
exfoliating +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.58 cm5.8 mm <br />0.0058 m <br />) +
basifixed +  and versatile +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
actinomorphic +
straight +
loculicidal +
4-angled +, terete +  and cylindrical +
Sandy flats, steep loose slopes, sagebrush shrublands, Joshua tree and pinyon-juniper woodlands. +
puberulent +  and villous +
stout +  and slender +
distributed +
11 cm110 mm <br />0.11 m <br /> (13 cm130 mm <br />0.13 m <br />) +
2.2 cm22 mm <br />0.022 m <br /> (3 cm30 mm <br />0.03 m <br />) +
deciduous +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
coarsely serrulate +  and sinuate-toothed +
numerous +  and 1 +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Flowering Jun–Aug. +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
Syst. Bot. Monogr. +
basal +  and cauline +
clavate +  and globose +
monomorphic +
7 +  and numerous +
sculptured +  and smooth +
truncate-ellipsoid +, narrowly obovoid +  and oblanceoloid +
in pairs +  and singly +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
purple +, pink +, red +  and green +
deciduous +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 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 +
15 cm150 mm <br />0.15 m <br /> (60 cm600 mm <br />0.6 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
subglobose +
subsessile +  and petiolate +
intrapetiolar +
1.35 cm13.5 mm <br />0.0135 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.82 cm8.2 mm <br />0.0082 m <br /> (1.35 cm13.5 mm <br />0.0135 m <br />) +
aquatic +, amphibious +  and terrestrial +
0.14 cm1.4 mm <br />0.0014 m <br /> (?) +  and 0.21 cm2.1 mm <br />0.0021 m <br /> (?) +
non-papillate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.07 cm0.7 mm <br />7.0e-4 m <br /> (?) +
Sphaerostigma lemmoniia. +  and S. senex +
Eremothera boothii subsp. boothii +
Eremothera boothii +
subspecies +
3(-5)-aperturate +
smooth +  and erose +
papillate +