[Members of the Sunflower Family with Discoid Flower Heads Found West of the Cascade Mountains of Oregon and Washington]

Disc Mayweed, Pineapple Weed

Matricaria matricarioides

Synonyms: Chamomilla discoidea, Chamomilla suaveolens, Matricaria matricarioides, Santolina suaveolens

Disc Mayweed, Pineapple Weed: Matricaria discoidea (Synonyms: Chamomilla suaveolens, Matricaria matricarioides)

Disc Mayweed, Pineapple Weed: Matricaria discoidea (Synonyms: Chamomilla discoidea, Chamomilla suaveolens, Matricaria matricarioides, Santolina suaveolens) - Disc Mayweed, Pineapple Weed: Matricaria discoidea (Synonyms: Chamomilla discoidea, Chamomilla suaveolens, Matricaria matricarioides, Santolina suaveolens)

Paul Slichter