Wildflowers of Tucson, Arizona
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Ambrosia cordifolia - Tucson Burr Ragweed Ambrosia cordifolia - Tucson Burr Ragweed
Scientific Name: Ambrosia cordifolia (Franseria cordifolia)
Common Name: Tucson Burr Ragweed, Sonoran Bursage
Flower Color: Yellowish
Plant Type: Shrub, Subshrub, Perennial
Height: 2 feet (61 cm) tall or more
Date Observed: April 18, 2004
Notes: The allergenic flowers are in terminal flower spikes and are followed by bur-like fruit. The leaves are light green, heart-shaped, bluntly toothed and lobed, and have silvery veins. The stems are silvery white.
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