Flora of North America species comparison

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Chylismia scapoidea subsp. brachycarpa

Chylismia scapoidea subsp. utahensis
Photo is of parent taxon

naked stem evening primrose, short-fruit beeblossom
Photo is of parent taxon
Leaves

blade with lateral lobes few or absent, sometimes well developed, terminal lobe narrowly ovate to ovate or, sometimes, elliptic, 1–6.5 × 0.7–3.3 cm, margins irregularly dentate, oil cells on abaxial surface conspicuous, dark brown.

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 1.8–4 mm.

petals 4–5.5(–8) mm.
Capsules

8–20(–28) mm.

16–38 mm.
2n

= 14.

Chylismia scapoidea subsp. brachycarpa

Chylismia scapoidea subsp. utahensis
Phenology Flowering May–Jun. Flowering May–Jun.
Habitat Sandy slopes and flats, with Artemisia, Grayia, or Juniperus. Dry rocky slopes, flats, with Atriplex and Ericameria.
Elevation 700–2000 m. (2300–6600 ft.) 1200–1700 m. (3900–5600 ft.)
Distribution
from FNA
ID; NV; OR; UT
[BONAP county map]
from FNA
NV; UT
[BONAP county map]
Discussion

Subspecies brachycarpa is known from southeastern Oregon, southwestern Idaho, northwestern Utah, and northeastern Nevada.

(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. macrocarpa, C. scapoidea subsp. scapoidea, C. scapoidea subsp. utahensis
C. scapoidea subsp. brachycarpa, C. scapoidea subsp. macrocarpa, C. scapoidea subsp. scapoidea
Synonyms Oenothera scapoidea subsp. brachycarpa, Camissonia scapoidea subsp. brachycarpa Oenothera scapoidea subsp. utahensis, Camissonia scapoidea subsp. utahensis, C. scapoidea var. utahensis
Name authority (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 208. (2007) (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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