[Members of the Sunflower Family Having Daisy-like Flower Heads Found West of the Cascade Mountains of Oregon and Washington]

Spikeweeds West of the Cascade Mountains of Oregon and Washington

The Genus Centromadia

Fitch's Spikeweed: Centromadia fitchii (Synonym: Hemizonia fitchii) -

Common Spikeweed, Wester Spikeweed: Centromadia pungens ssp. pungens (Synonyms: Hemizonia pungens ssp. pungens, Hemizonia pungens ssp. septentrionalis, Hemizonia pungens var. pungens, Hemizonia pungens var. septentrionalis) -

Paul Slichter E-mail