Wildflowers of Tucson, Arizona
White Wildflower
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Queen (Danaus gilippus) butterfly on Baccharis salicifolia - Mule's Fat (Seep-willow) Baccharis salicifolia - Mule's Fat (Seep-willow)
Scientific Name: Baccharis salicifolia (Baccharis viminea, Baccharis glutinosa)
Common Name: Mule's Fat, Seep-willow
Flower Color: Creamy white
Plant Type: Shrub, Perennial, Evergreen
Height: To 10 feet (3 m) tall, but usually less
Date Observed: August 16, 2003
Notes: These dioecious shrubs have white, rayless flowers. The fluffy seeds have a feathery, white pappus. The sticky, dark green, lanceolate leaves are variably toothed and up to 6 inches (15 cm) long. It grows along streams or washes and attracts butterflies.
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