Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

Home to the plants of the Sonoran, Chihuahuan and Mojave Deserts

Cirsium ochrocentrum, Yellowspine Thistle

Calibrachoa parviflora, Seaside Petunia

Seaside Petunia has showy purple flowers often with a whitish throat. Seaside Petunia blooms from April to September. Calibrachoa parvifloraSeaside Petunia is an introduced species naturalized in southern and coastal states. This species is found between 400 and 5,000 feet. Calibrachoa parvifloraSeaside Petunia is a low growing annual that grows up to 15 inches or so in California, much less in Arizona. Calibrachoa parviflora Seaside Petunia is found in moist soil streambeds and muddy flats. This species is a relative of the commercial Petunia with much smaller flowers. Leaves are somewhat fleshy. Calibrachoa parviflora

Scientific Name: Calibrachoa parviflora
Common Name: Seaside Petunia
Also Called: Seaside-petunia, Small Flower Petunia
Family: Solanaceae, Nightshade or Potato Family
Synonyms: (Nierembergia viscidula, Petunia parviflora)
Status: Introduced
Duration: Annual
Size: Up to 15 inches, usually much less in Arizona.
Growth Form: Forb/herb; plants are glandular-puberulous; stems prostrate to decumbent; stems rooting at the nodes; forms mats, plants leafy.
Leaves: Green; leaves narrow, oblanceolate, somewhat fleshy, about ⅓ of an inch long; sub-sessile.
Flower Color: Purple with whitish; flowers solitary; funnelform corolla, corolla with whitish tube.
Flowering Season: April to September; April to August in California.
Elevation: 400 to 5,000 feet.

Habitat Preferences: Moist soil in beds of streams, and muddy flats; open washes and dry streambanks in California.

Recorded Range: Calibrachoa parviflora is found mostly in the southern and many coastal states in the United States; and in the interior states of Colorado, Kansas and Nevada. It is also native to most of Baja California and throughout Mexico. In Arizona it is found in the western ⅔ of the state with few records in Gila, La Paz and Pinal counties.

North America & US County Distribution Map for Calibrachoa parviflora.

U.S. Weed Information: No information available.

Invasive/Noxious Weed Information: No information available. In North America Calibrachoa parviflora, Seaside Petunia is listed as a Noxious Weed by the federal government and/or a State. Plants included here are invasive or noxious.

Wetland Indicator: In North America Calibrachoa parviflora, Seaside Petunia has the following wetland designations: Arid West, FACW; Atlantic and Gulf Coastal Plain, FAC; Eastern Mountains and Piedmont, FACW; Great Plains, FACW; Western Mountains, Valleys, and Coast, FACW.
FACW = Facultative Wetland, usually occur in wetlands, but may occur in non-wetlands
FAC = Facultative, occur in wetlands and non-wetlands.

Threatened/Endangered Information: No information available.

Genus Information: In North America there are 1 species for Calibrachoa. World wide, The Plant List includes 28 accepted species names for Calibrachoa.

In the southwestern United States there is 1, species of Calibrachoa. All data is approximate and subject to taxonomic changes.

Comments: Calibrachoa parviflora, Seaside Petunia is related to the commercially grow Petunia and was previously included in the genus Petunia.

Date Profile Completed: 09/03/2016, updated format 10/04/2017
U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database and USGS ITIS search - (accessed 09/03/2016)
Arizona Flora, Kearney, Thomas H., Peebles, Robert H., 1960, University of California Press, Berkley and Los Angeles, California as Petunia parfiflora.
The Plant List (2013). Version 1.1. Published on the Internet; (accessed 09/03/2016).
1993, The Jepson Manual, Citation: (accessed 09/03/2016),7664,7665
SEINet for synonyms, scientific names, recorded geographic locations and general information 09/03/2016).