Flora of North America species comparison

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Chylismia brevipes subsp. arizonica

Onagraceae subfam. onagroideae
Photo is of parent taxon

Arizona sun cup
Habit Herbs slender, often branched distally, villous, sometimes also strigillose, at least distally.
Leaves

stipules present or absent.
Flowers

buds individually reflexed, without free tips or with apical free tips less than 1 mm;

floral tube orange-brown inside, 3–5 mm;

petals often with red dots at base, often fading reddish, 3–8 mm;

anthers 2.5–5 mm.

floral tube present or, rarely, absent;

sepals 2 or 4 (very rarely 3), deciduous with floral tube, petals, and stamens;

petals yellow, white, pink, red, rarely in combination.
Capsules

18–60 mm;

pedicel 2.5–5 mm.

xI> = 7, 10, 11, 15, 18.

2n

= 14.

Chylismia brevipes subsp. arizonica

Onagraceae subfam. onagroideae
Phenology Flowering Feb–Apr.
Habitat Rocky slopes, flats.
Elevation 70–300 m. (200–1000 ft.)
Distribution
from FNA
AZ; CA
[BONAP county map]
North America; Mexico; Central America; South America; West Indies; Eurasia; Pacific Islands (New Zealand, Society Islands); Australia
Discussion

Subspecies arizonica is known from Yuma County, Arizona, and eastern Imperial County, California. It hybridizes with Chylismia claviformis subspp. peeblesii, rubescens, and yumae.

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

Genera 21, species 582 (16 genera, 246 species in the flora).

Onagroideae encompass the main lineage of the family, after the early branching of Ludwigia (R. A. Levin et al. 2003, 2004). This large and diverse lineage is distinguished by the presence of a floral tube beyond the apex of the ovary; sepals deciduous with the floral tube, petals, and stamens; pollen shed in monads (or tetrads in Chylismia sect. Lignothera and all but one species of Epilobium); ovular vascular system exclusively transseptal (R. H. Eyde 1981); ovule archesporium multicellular (H. Tobe and P. H. Raven 1996); and change in base chromosome number from x = 8 in Ludwigia to x = 10 or x = 11 at the base of Onagroideae (Raven 1979; Levin et al. 2003). Molecular work (Levin et al. 2003, 2004) substantially supports the traditional tribal classification (P. A. Munz 1965; Raven 1979, 1988); tribes are recognized to delimit major branches within the phylogeny of Onagroideae, where the branches comprise strongly supported monophyletic groups of one or more genera.

(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 brevipes Onagraceae
Sibling taxa
C. brevipes subsp. brevipes, C. brevipes subsp. pallidula
Subordinate taxa
Synonyms Oenothera brevipes subsp. arizonica, Camissonia brevipes subsp. arizonica
Name authority (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (2007) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 41. (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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