Spreading Fleabane
Erigeron divergens
Photographed along Mesquite Wash, Maricopa Co., Arizona. May 10, 2008.
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ANNUAL: Herbaceous annual becoming apparent by mid spring in years with
good rainfall. Plants typically are about 30 cm
tall. Branches freely above base of plant yielding a plant half again wide as tall.
FLOWERS: Composite daisies with close to 100, narrow, white or lavender
rays and yellow disc flowers. Dozens of 10 mm diameter daisies open at
once make for a showy plant.
LEAVES: Leaves and stems are covered with fine, reflexed or spreading
hairs. Many basal leaves, fewer above. Obovate - larger towards tips and with
various lobes.
RANGE: Frequent throughout the Sonoran Desert in Arizona and Mexico
mostly along washes but also at roadsides and near agriculture.
FRUIT: Dry single-seeded achene toppped by less than a dozen fine
bristles.
UNARMED. Without thorns.