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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; USDA Plants Database — plant profiles search engine, by common or botanical names, or by U.S. state.
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 ...
It is a parasitic plant which attaches to the roots of various desert shrubs such as wild buckwheats, ragweeds, plucheas, and Tiquilia plicata and T. palmeri to obtain nutrients. As a heterotroph, the Pholisma sonorae plant lacks chlorophyll and is grayish, whitish, or brown in color. It has glandular scale-like leaves along its surface.
It is usually found on open hillsides [3] and desert washes and slopes that fall below 5,000 feet (1,500 m). These plants can grow to be up to 2 to 4 feet (60 to 120 cm) wide and 1 to 3 feet tall. During the spring and summer the plant begins to bloom pale to vibrant pink flowers. [6]
Plants must survive its hot and dry conditions. [2]: 7 Temperatures can be greater than 120 °F (49 °C). [2]: 7 Annual precipitation is sometimes less than 3 inches (7.6 cm). [2]: 7 Density of vegetation gradually diminishes moving from the Arizona Upland into the Colorado Desert proper. [2]: 7
Antirrhinum is a genus of plants in the Plantaginaceae family, commonly known as dragon flowers or snapdragons because of the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when laterally squeezed. They are also sometimes called toadflax [1] or dog flower. [2]
The flowers only appear on the very top of the plant. As the flowers begin to wilt in early May, they may change color. A late summer desert rainstorm can produce a late bloom, as shown in the photograph below of the orange-flowered variety (it bloomed two days after a hurricane in mid-August and continued to bloom through the end of September).
This category contains the native flora of Arizona as defined by the World Geographical Scheme for Recording Plant Distributions. Taxa of the lowest rank are always included; taxa of higher ranks (e.g. genus) are only included if monotypic or endemic. Include taxa here that are endemic or have restricted distributions (e.g. only a few countries).