Tribe Anthemideae Scientific name Tripleurospermum inodorum Rank Species | ||
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Similar Tripleurospermum, Viola arvensis, Anthemis arvensis, Thlaspi arvense, Pineappleweed |
Tripleurospermum inodorum, common names scentless false mayweed, scentless mayweed, scentless chamomile, wild chamomile, mayweed, false chamomile, and Baldr's brow, is the type species of Tripleurospermum. This plant is native to Eurasia and North Africa and is considered an invasive weed in North America.
Contents

Historically included the genus Matricaria, Tripleurospermum inodorum has been the subject of some controversy, with many revisions in recent years. The Flora Europaea uses Matricaria perforata for this species. Synonyms/other scientific names include Tripleurospermum perforatum (Mérat) Lainz, Tripleurospermum maritimum subsp. inodorum.

Ecology
Pollen is collected by solitary bees.
Mythology

In Sweden and Norway, it is called Baldr's brow, but in Iceland, it is the close relative Sea Mayweed (Matricaria maritima) that carries this name. In Gylfaginning, Snorri Sturluson explains that the name Balder's brow comes from the plants' whiteness:

