Eulobus californicus, California Suncup
Scientific Name: Eulobus (Camissonia) californicus
Common Name: California Suncup
Also Called: California Evening Primrose, California Eveningprimrose, California Primrose
Family: Onagraceae, Evening Primrose Family
Synonyms: (Camissonia californica, Oenothera avita, Oenothera avita subsp. eurekensis, Oenothera californica, Oenothera leptocarpa)
Duration: Annual, perennial;
Size: Up to 3½ feet.
Growth Form: Forb/herb; basal leaves, slender erect stems glaucous or green.
Leaves: Green; basal leaves with reduced upper leaves, small pinnate lobes, leaves narrowly lanceolate or elliptic.
Flower Color: Yellow to yellow-orange; flowers widely spaced; petals to ½ inch, red flecks at base, sepals smaller, greenish, fruit reflexed downward, cylindrical capsule up to 4 inches long.
Flowering Season: February to June, April to June in California.
Elevation: Below 4,500 feet, slightly lower elevations in California (4,000).
Habitat Preferences: Dry slopes, open areas, plains and washes, desert scrub and chaparral; also in coastal ranges in California.
Recorded Range: California Suncup is found in the southwest United States in AZ, CA and NV. In Arizona it is found mostly in the west ½ of the state; southern California and extreme southeast Nevada. It is also native to Baja California and northern Mexico.
North America & US County Distribution Map for Eulobus (=Camissonia) californicus.
U.S. Weed Information: No information available.
Invasive/Noxious Weed Information: No information available.
Wetland Indicator: No information available.
Threatened/Endangered Information: No information available.
Genus Information: In North America, the USDA, Natural Resources Conservation Service includes members of Eulobus within Camissonia. The synonym Camissonia is found in the west half of North America. The Plant List includes 4 scientific plant names of species rank for the genus Eulobus. All data is approximate and subject to taxonomic changes.
In the southwestern United States; Arizona has 22 species of Camassonia, California has 43 species, Nevada has 29 species, New Mexico has 6 species, Texas has 1 species and Utah has 19 species. All data is approximate and subject to taxonomic changes.
Comments: California Suncup is still widely identified as belonging to the genus Camissonia.
In Southwest Desert Flora also see Miniature Suncup, Camissonia micrantha, Yellow Cups, Chylismia (=Camissonia) brevipes Browneyes, Chylismia (=Camissonia) claviformis and Palmer Evening Primrose, Tetrapteron (=Camissonia) palmeri.