Chylismia scapoidea subsp. scapoidea

Synonyms: Chylismia scapoidea var. seorsaa. Nelson Oenothera scapoidea var. seorsa (A. Nelson) Munz
Treatment appears in FNA Volume 10.
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Leaves: blade usually unlobed, rarely pinnately lobed with few, small lateral lobes, terminal lobe narrowly ovate to ovate or, sometimes, elliptic, 1–5.5 × 0.5–3 cm, margins subentire, oil cells on abaxial surface inconspicuous, usually pale yellowish-brown, rarely darker. Flowers: petals 1.7–5 mm. Capsules (10–) 15–30 mm. 2n = 14, 28.


Phenology: Flowering Mar–May.
Habitat: Sandy or clay flats.
Elevation: 1200–2000(–2500) m.

Distribution

Ariz., Colo., Nev., N.Mex., Oreg., Utah, Wyo.

Discussion

Subspecies scapoidea is known from western Wyo­ming, west to Lake County, Oregon, and Elko and White Pine counties, Nevada, south to Beaver County, Utah, northern Coconino, Navajo, and Apache counties, Arizona, Sandoval and San Juan counties, New Mex­ico, and western Colorado; also on the headwaters of the Arkansas River in eastern Colorado (Fremont and Pueblo counties). It is the only member of sect. Chylismia that occurs east of the Continental Divide.

Selected References

None.

Lower Taxa

None.

"elongating" is not a number.

glabrous +  and ciliate +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Warren L. Wagner +
(Torrey & A. Gray) Nuttall ex Raimann in H. G. A. Engler and K. Prantl +
Oenothera scapoidea +
indehiscent +  and loculicidal +
lobed +, toothed +  and entire +
lobed +  and unlobed +
reduced +
reflexed +  and erect +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
curved +  and straight +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Ariz. +, Colo. +, Nev. +, N.Mex. +, Oreg. +, Utah +  and Wyo. +
1200–2000(–2500) m. +
basifixed +  and versatile +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
glabrous +  and villous +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
actinomorphic +
curved +  and straight +
loculicidal +
oblong-cylindrical +, clavate +  and subterete +
Sandy or clay flats. +
puberulent +  and strigillose +
unlobed +  and lobed +
deciduous +
1 cm10 mm <br />0.01 m <br /> (18 cm180 mm <br />0.18 m <br />) +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
reduced +
entire +, serrulate +, dentate +  and serrate +
subentire +
membranous +
darker +  and pale yellowish-brown +
numerous +  and 1 +
0.4 cm4 mm <br />0.004 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
yellowish orange +, fading pale-yellow +  and bright-yellow +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
Flowering Mar–May. +
Nat. Pflanzenfam. +
well-developed +
basal +  and cauline +
clavate +  and globose +
7 +  and numerous +
lenticular +  and narrowly ovoid +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
purple +, pink +, red +  and green +
deciduous +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
parenchymatous +
parietal +, axile +  and placentation +
1 +, 4 +  and 2 +
subequal +
aquatic +, amphibious +  and terrestrial +
unequal +
2 times as many or as many as sepals +
branched +  and unbranched +
prostrate +  and decumbent +
3 cm30 mm <br />0.03 m <br /> (45 cm450 mm <br />0.45 m <br />) +
conical-peltate +
capitate +  and entire +
long-petiolate +
intrapetiolar +
0.3 cm3 mm <br />0.003 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
aquatic +, amphibious +  and terrestrial +
non-papillate +
Chylismia scapoidea var. seorsaa. +  and Oenothera scapoidea var. seorsa +
Chylismia scapoidea subsp. scapoidea +
Chylismia scapoidea +
subspecies +
1 cm10 mm <br />0.01 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
, +, narrowly ovate +  and ovate +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
3(-5)-aperturate +
smooth +  and erose +
papillate +