Tripleurospermum inodorum

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Scientific Name Tripleurospermum inodorum (Matricaria perforata) USDA PLANTS Symbol TRIN11
Common Name Scentless Chamomile, False Chamomile, Scentless False Mayweed ITIS Taxonomic Serial No. 522916
Family Asteraceae (Sunflower) SEINet
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Description Life zones and habitat: Plains to montane (4600 to 10500 ft.); disturbed areas, roadsides, around buildings.
Plant: Erect annual (usually), single stem, multiple branches; 12 to 24 inches (or more) tall.
Leaves: Stem leaves alternate, 1-1/2 to 3-1/4 inches long, finely dissected into fleshy, narrow linear lobes.
Inflorescence: Many (10 to 200 or more) solitary flower heads about 2 inches across with 10 to 25 white rays and many yellow disk florets in a mound-shaped center; oblong phyllaries dark greenish or brownish, margins colorless to light brown,
Bloom Period: July to September.
References: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildflowers" by G.K. Guennel, and Flora of North America.
Notes: Native to Eurasia and North Africa, considered an invasive weed in Colorado.
BONAP Distribution Map

Tripleurospermum maritimum ssp. inodorum
Colorado Status:

© Tom Lebsack 2021