Centromadia
spikeweed
1 species
1 subspecies and varieties
1 subspecies and varieties
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Centromadia pungens – common spikeweed
Distribution: Occurring east of the Cascades crest in central and south-central Washington; central Washington to California, where native east to Idaho, Nevada, and Arizona.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed, open places at low to middle elevations.
Origin: Introduced from California
Flowers: July-Sept.
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in central and south-central Washington; central Washington to California, where native east to Idaho, Nevada, and Arizona.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed, open places at low to middle elevations.
Origin: Introduced from California
Flowers: July-Sept.
Growth Duration: Annual
• ssp. pungens – common spikeweed, western spikeweed
