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Tucson Burr-Ragweed

Ambrosia cordifolia

Details & Attributes

Plant Type(s) Perennial
Native to Arizona Yes!
Water Needs Low-moderate
Sun Full sun, partial shade
Pollinators Wind pollinated
Has Spines No
In relative feet, width by height
3 × 1.5
Flowering Season January-April
Flower Color Yellow
Minimum Temperature Range 20-30 °F
Leaf Description Heart shaped leaves
Fruit Burrs
In years
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Range Map View SEINet Range Map
Elevation Range 1500-3500 ft.
Description A particularly lovely ragweed species with soft green foliage. Burr ragweed is commonly seen in the Tucson, Ajo, and Superstition mountains in sandy washes or on rocky slopes. The wind blown pollen can trigger allergies in some people.