The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links
Photo is of parent taxon

big heartleaf sun cup

Photo is of parent taxon

heart leaf primrose

Habit Herbs glandular puberulent throughout, often also sparsely villous. Herbs villous, sometimes also glandular puberulent.
Flowers

floral tube 9–14 mm;

petals 7–11 mm;

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

floral tube 4.5–12 mm;

petals 3–12 mm;

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

2n

= 14.

= 14.

Chylismia cardiophylla subsp. robusta

Chylismia cardiophylla subsp. cardiophylla

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

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.)

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.)

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. cardiophylla
C. cardiophylla subsp. robusta
Synonyms Oenothera cardiophylla subsp. robusta, Camissonia cardiophylla subsp. robusta Oenothera cardiophylla var. petiolaris
Name authority (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 206. (2007) unknown
Web links