familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
genusChylismia
sectionChylismia sect. Lignothera
speciesChylismia cardiophylla
Chylismia cardiophylla subsp. cardiophylla
Synonyms: Oenothera cardiophylla var. petiolaris M. E. Jones
Treatment appears in FNA Volume 10.
Illustrator:
Copyright:
Herbs villous, sometimes also glandular puberulent. Flowers: floral tube 4.5–12 mm; petals 3–12 mm; style 8–23 mm, stigma often exserted beyond anthers at anthesis. 2n = 14.
Phenology: Flowering Mar–May.
Habitat: Rocky walls, sandy alluvial flats, with Ambrosia dumosa, Hyptis emoryi, and Larrea tridentata.
Elevation: 0–700 m.
Distribution
Ariz., Calif., Mexico (Baja California, Sonora).
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.
Selected References
None.
Lower Taxa
None.