Fleabane
Erigeron divergens ?
Found on a sandy terrace alongside Peppersauce Canyon, Sta. Catalina Mts., Arizona, USA. 18 April 2010.
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ANNUAL: Herbaceous annual or perennial depending on exact species. Apparent by mid spring in years with
good rainfall and again after summer rains. 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. Flowering April through November.
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. Pubescence varies between the several species.
RANGE: Frequent throughout the sycamore canyons of Arizona and Mexico. Erigeron divergens is the most common and widespread species. Additional species are more likely to be encountered among the rocky ledges, while others may be found at higher elevations or on different substrates.
FRUIT: Dry single-seeded achene topped by less than a dozen fine
bristles.
UNARMED. Without thorns.
Asteraceae -- Sunflower Family
More Information:
- Southwest Environmental Information Network
- USDA Plant Profile
- Google Images
- Google Scholar Literature Search