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The Sonoran Desert. The Sonoran Desert is a North American desert and ecoregion which covers large parts of the southwestern United States and of northwestern Mexico. With an area of 260,000 square kilometers (100,000 sq mi), it is the hottest desert in Mexico. The western portion of the Mexico–United States border passes through the Sonoran ...
Arizona—Sonora Desert Museum: Flora of the Sonoran Desert Region; U.S. Wildflowers Reference List: Arizona — Reference List of websites for Arizona Wildflower Identification. Pima Community College. Common Wildflowers of Tucson. Floras - Arizona Native Plant Society
In areas of intermittent water steams (desert dry wash), ironwood (Olneya tesota), yellow paloverde (Parkinsonia microphylla), and Smoketree (Psorothamnus spinosus) can be found. [2]: 7 The Saguaro cactus is still present, but less frequently than in the Arizona uplands, and is smaller in this ecotone.
Flowers appear at the top of the plant only after many years. The barrel cactus can live to be over 100 years old. Barrel cactus buds typically start to bloom in April with a bright yellow or orange flower. Pink and red varieties also exist but occur less frequently. The flowers only appear on the very top of the plant.
The Sonoran desert wraps around the northern end of the Gulf of California, from Baja California Sur (El Vizcaíno Biosphere Reserve in central and Pacific west coast, Central Gulf Coast subregion on east to southern tip), north through much of Baja California, excluding the central northwest mountains and Pacific west coast, through southeastern California and southwestern and southern ...
Hibiscus coulteri, the desert rosemallow, is a species of flowering plant in the family Malvaceae. [4] It is native to steep slopes and canyon walls in the eastern Sonoran Desert, and the Chihuahuan Desert of the southwestern US and northern Mexico. [3] A short-lived perennial shrub reaching 6 ft (1.8 m), it is recommended for xeriscaping. [4]
Flora of the Sonoran Deserts—of southwestern North America, in regions of southern Arizona, southeastern California, and northwestern Mexico. Including the Sonoran Desert and its subregions of the: Colorado Desert , Lechuguilla Desert , Gran Desierto de Altar , Tule Desert , Yuha Desert , and Yuma Desert .
The many tall, naked stems are each topped with a bright yellow daisy-like flower head about 4–5 cm (1 + 1 ⁄ 2 –2 in) wide, with 25–50 ray florets. [3] [6] It blooms from April to October. [6] The seed-like fruit is whitish, with no scales or bristles at the tip. [6]