Eremothera boothii subsp. desertorum

(Munz) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 209. 2007.

Basionym: Oenothera decorticans var. desertorum Munz Bot. Gaz. 85: 246. 1928
Synonyms: Camissonia boothii subsp. desertorum (Munz) P. H. Raven C. boothii var. desertorum (Munz) Cronquist C. boothii subsp. inyoensis (Munz) Munz O. boothii subsp. desertorum (Munz) Munz O. boothii subsp. inyoensis Munz
Treatment appears in FNA Volume 10.
Revision as of 20:03, 7 June 2022 by imported>Volume Importer
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Herbs strigillose and/or glandular puberulent, espe­cially in inflorescence. Stems 10–35 cm. Leaves often clustered toward base, 1–9 × 0.2–1.4 cm; petiole 0–4.5 cm; blade narrowly elliptic to narrowly ovate or oblanceolate, margins subentire to sparsely denticulate. Inflorescences relatively leafless. Flowers: floral-tube (2–) 4–8 mm; petals white, 3–7 mm. Capsules flexuous-contorted, apex often curved downward, 1–1.6 mm diam. near base. Seeds dimorphic.


Phenology: Flowering Apr–Aug.
Habitat: Sandy or gravelly slopes and washes, creosote desert shrublands, pinyon-juniper woodlands.
Elevation: 400–2400 m.

Discussion

Subspecies desertorum is intermediate geograph­i­cally and morphologically between subspp. condensata and decorticans (P. H. Raven 1969). Populations from Inyo County, where they grow on limestone, have relatively small flowers and lax inflorescences, which gives them a distinctive appearance; these were named Oenothera boothii subsp. inyoensis. Very extensive intergra­dation between them and more typical subsp. desertorum caused Raven to consider them part of subsp. desertorum.

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 />) +
0.1 cm1 mm <br />0.001 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Warren L. Wagner +
(Munz) W. L. Wagner & Hoch +
papillose +
Oenothera decorticans var. desertorum +
indehiscent +  and loculicidal +
entire +, sinuate-toothed +, serrulate +  and denticulate +
narrowly elliptic +  and narrowly ovate or oblanceolate +
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 />) +
400–2400 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 /> (0.4 cm4 mm <br />0.004 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 or gravelly slopes and washes, creosote desert shrublands, pinyon-juniper woodlands. +
puberulent +, glandular +  and strigillose +
stout +  and slender +
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 /> (9 cm90 mm <br />0.09 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
subentire +  and sparsely denticulate +
numerous +  and 1 +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0 cm0 mm <br />0 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Flowering Apr–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 +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 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 /> (?) +
Camissonia boothii subsp. desertorum +, C. boothii var. desertorum +, C. boothii subsp. inyoensis +, O. boothii subsp. desertorum +  and O. boothii subsp. inyoensis +
Eremothera boothii subsp. desertorum +
Eremothera boothii +
subspecies +
3(-5)-aperturate +
smooth +  and erose +
papillate +