Flora of North America species comparison

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Chylismia scapoidea subsp. scapoidea

Chylismia scapoidea subsp. utahensis
Photo is of parent taxon

Paiute suncup
Photo is of parent taxon
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.

blade usually pinnately lobed, terminal lobe narrowly ovate to ovate or, sometimes, elliptic, 2–5 × 1–2.8 cm, margins dentate, oil cells on abaxial surface conspicuous, usually dark brown.
Flowers

petals 1.7–5 mm.

petals 4–5.5(–8) mm.
Capsules

(10–)15–30 mm.

16–38 mm.
2n

= 14, 28.

Chylismia scapoidea subsp. scapoidea

Chylismia scapoidea subsp. utahensis
Phenology Flowering Mar–May. Flowering May–Jun.
Habitat Sandy or clay flats. Dry rocky slopes, flats, with Atriplex and Ericameria.
Elevation 1200–2000(–2500) m. (3900–6600(–8200) ft.) 1200–1700 m. (3900–5600 ft.)
Distribution
from FNA
AZ; CO; NM; NV; OR; UT; WY
[BONAP county map]
from FNA
NV; UT
[BONAP county map]
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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies utahensis is known from extreme northeastern Nevada (Elko County) and western Utah. P. H. Raven (1962, 1969) described this subspecies for populations that are somewhat intermediate between Chylismia walkeri subsp. tortilis and C. scapoidea subsp. brachycarpa, suggesting that this entity perhaps developed via hybridization between them. The ranges of the two putative parents heavily overlap that of subsp. utahensis. A. Cronquist et al. (1997c) combined subsp. brachycarpa and subsp. utahensis.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia > Chylismia scapoidea Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia > Chylismia scapoidea
Sibling taxa
C. scapoidea subsp. brachycarpa, C. scapoidea subsp. macrocarpa, C. scapoidea subsp. utahensis
C. scapoidea subsp. brachycarpa, C. scapoidea subsp. macrocarpa, C. scapoidea subsp. scapoidea
Synonyms C. scapoidea var. seorsaa., Oenothera scapoidea var. seorsa Oenothera scapoidea subsp. utahensis, Camissonia scapoidea subsp. utahensis, C. scapoidea var. utahensis
Name authority unknown (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 208. (2007)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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