More chamomile

Started 1 month ago | Photos thread
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richj20 Veteran Member • Posts: 8,218
More chamomile

macrouser's thread showing a chamomile:

reminded me of two other species I've seen in Southern California.

One is commonly called "Globe Chamomile," or "Stinknet," Oncosiphon piluliferum. Old name: Matricaria globifera

Discoid: inner disc flowers, no outer ray flowers

Closeup of the disc flowers. As is common with disc flowers, the florets open from the outside, then into the center

It is self-seeding and classified as "invasive." Here is what happened in our local park some years ago.

It has since been pretty much eradicated from the park, although I see some from time to time.

To become classified as "invasive" in California requires an evaluation, as was done in 2016:

Cal-Invasive Plant Council

Another species, "Pineapple Weed" or "Wild Chamomile" has been reported to be an acceptable substitute for commercial chamomile.

Matricaria discoidea. Synonyms: Matricaria matricarioides; Chamomilla suaveolens

No ray flowers

These plants are smaller than the "Stinknet."

- Richard

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