Common Yarrow
Achillea millefolium
Observed in the ponderosa forest of Upper East Verde watershead just below the Mogollon Rim, Gila Co., Arizona, USA. August 2010. Taking nectar is a spring azure, Celastrina argiolus.
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FLOWERS: Small flower heads composed of white disc and white ray
florets. The small heads are further arranged into dense, flat-topped, terminal
panicles.
LEAVES: Leaves are dark green and finely dissected; pinnately or
bipinnately.
PERENNIAL: Usually from clusters of stems from a root system that can
survive several seasons. Most mature, flowering plants are less than
one meter in height.
RANGE: Very common throughout Arizona's woodland habitats growing in
open sunny places.
FRUIT: The seeds are are winged along the margins but lack an apicle
pappus.
UNARMED. No prickles.
Asteraceae -- Sunflower Family
More Information:
- Southwest Environemtnal Information Network
- Southwest Colorado Wildflowers
- USDA Plant Profile
- ITIS Taxonomic Report
- Google Images
- Google Scholar Literature Search