Flora of North America species comparison

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Chylismia walkeri subsp. walkeri

Chylismia walkeri subsp. tortilis
Photo is of parent taxon
Photo is of parent taxon

Walker's sun cup
Leaves

primarily cauline, rarely forming basal rosette;

blade with only terminal lobe well developed, sometimes pinnately lobed, lateral lobes usually greatly reduced or absent.

primarily basal, forming conspicuous rosette, cauline reduced or absent;

blade usually pinnately lobed, rarely bipinnately, lateral lobes usually well developed.
Flowers

floral tube 0.5–1.3 mm;

sepals 1.5–2 mm;

petals 1–3 mm;

anthers 0.5–0.8 mm, glabrous;

style 1.5–4 mm.

floral tube 1–1.5 mm;

sepals 1.5–5 mm;

petals 2.8–6 mm;

anthers 1–2 mm, glabrous or sparsely ciliate;

style 4–6 mm.
Capsules

pedicel 5–15 mm.

pedicel 5–30 mm.
2n

= 14, 28.

= 14.

Chylismia walkeri subsp. walkeri

Chylismia walkeri subsp. tortilis
Phenology Flowering Apr–Jun. Flowering Apr–Jun.
Habitat Loose slides of limestone and other sedimentaries, sandy washes. Colonial in rocky debris near cliffs, along ephemeral streams, on limestone.
Elevation 900–1800 m. (3000–5900 ft.) 600–1900 m. (2000–6200 ft.)
Distribution
from FNA
AZ; CO; NM; UT
[BONAP county map]
from FNA
CA; NV; UT
[BONAP county map]
Discussion

Subspecies walkeri is nearly confined to the Colorado Plateau, known from Mesa County, Colorado, and Emery County, Utah, south to Montezuma County, Colorado, San Juan County, New Mexico, and central Coconino and northeastern Mohave counties, Arizona.

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

Subspecies tortilis is known from Millard and Washington counties, Utah, west to southern Elko and Mineral counties, Nevada, southwest to Inyo and northeastern San Bernardino counties, California, eastward to Clark County, Nevada.

(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 walkeri Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia > Chylismia walkeri
Sibling taxa
C. walkeri subsp. tortilis
C. walkeri subsp. walkeri
Synonyms Camissonia bolanderin., C. dominguezescalanteorum, Oenothera multijuga var. orientalis Oenothera scapoidea var. tortilis, Camissonia walkeri subsp. tortilis, C. walkeri var. tortilis, O. walkeri subsp. tortilis
Name authority unknown (Jepson) 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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