Flora of North America species comparison

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Chylismia claviformis subsp. peirsonii
Photo is of parent taxon

Peirson's clavate fruit primrose
Habit Herbs villous, at least proximally, rarely strigillose or glandular puberulent.
Stems

5–60 cm.
Leaves

blade lateral lobes usually well developed, terminal lobe narrowly ovate, to 9 × 3.5 cm, margins irregularly sinuate-dentate.
Flowers

opening at sunset;

buds with conspicuous, subapical free tips;

floral tube orange-brown inside, 2.5–4.5 mm;

petals usually yellow, rarely white, not changing color in fading, 4.5–7 mm.
2n

= 14.

Chylismia claviformis subsp. peirsonii
Phenology Flowering Feb–Apr.
Habitat Sandy flats or washes, with Ambrosia dumosa, Fouquieria splendens, and Larrea.
Elevation -70–400 m. (-200–1300 ft.)
Distribution
from FNA
CA; Mexico (Baja California)
[BONAP county map]
Discussion

Subspecies peirsonii is known from east of the Salton Sea and Imperial Valley in Imperial and San Diego counties, California, and in northeastern Baja California to the Gulf of California. It intergrades with subsp. aurantiaca.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia > Chylismia claviformis
Sibling taxa
C. claviformis subsp. aurantiaca, C. claviformis subsp. claviformis, C. claviformis subsp. cruciformis, C. claviformis subsp. funerea, C. claviformis subsp. integrior, C. claviformis subsp. lancifolia, C. claviformis subsp. peeblesii, C. claviformis subsp. rubescens, C. claviformis subsp. yumae
Synonyms Oenothera claviformis var. peirsonii, Camissonia claviformis subsp. peirsonii, C. peirsonii, O. claviformis subsp. peirsonii
Name authority (Munz) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 207. (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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