Flora of North America species comparison

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Chylismia cardiophylla subsp. cardiophylla

Chylismia cardiophylla subsp. robusta
Photo is of parent taxon

heart leaf primrose
Photo is of parent taxon

big heartleaf sun cup
Habit Herbs villous, sometimes also glandular puberulent. Herbs glandular puberulent throughout, often also sparsely villous.
Flowers

floral tube 4.5–12 mm;

petals 3–12 mm;

style 8–23 mm, stigma often exserted beyond anthers at anthesis.

floral tube 9–14 mm;

petals 7–11 mm;

style 14–20 mm, stigma usually exserted beyond anthers at anthesis.
2n

= 14.

= 14.

Chylismia cardiophylla subsp. cardiophylla

Chylismia cardiophylla subsp. robusta
Phenology Flowering Mar–May. Flowering Mar–May.
Habitat Rocky walls, sandy alluvial flats, with Ambrosia dumosa, Hyptis emoryi, and Larrea tridentata. Rocky borders of washes and hillsides, with Ambrosia dumosa and Larrea tridentata.
Elevation 0–700 m. (0–2300 ft.) 600–1400 m. (2000–4600 ft.)
Distribution
from FNA
AZ; CA; Mexico (Baja California, Sonora)
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Subspecies cardiophylla is known from southern San Bernardino County south to eastern San Diego County, California, and Yuma County (and possibly western Pinal County), Arizona, and south in northeastern and central Baja California, Mexico; it is also found on Isla Ángel de la Guarda, Isla San Esteban, Isla San Luis, Isla San Marcos, and Isla San Pedro Mártir in the Gulf of California. Isla San Esteban is the only locality for this subspecies in Sonora.

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

Subspecies robusta is known from the western and southern margins of Death Valley, Inyo County.

(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. Lignothera > Chylismia cardiophylla Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Lignothera > Chylismia cardiophylla
Sibling taxa
C. cardiophylla subsp. robusta
C. cardiophylla subsp. cardiophylla
Synonyms Oenothera cardiophylla var. petiolaris Oenothera cardiophylla subsp. robusta, Camissonia cardiophylla subsp. robusta
Name authority unknown (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 206. (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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