Layia septentrionalis is an uncommon species of flowering plant in the family Asteraceae known by the common name Colusa tidytips, or Colusa layia.
Layia septentrionalis | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Layia |
Species: | L. septentrionalis
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Binomial name | |
Layia septentrionalis |
It is endemic to California, where it is known only from the Coast Ranges north of the San Francisco Bay Area and the Sutter Buttes in the Central Valley. It is sometimes a member of the serpentine soils flora.
Description
editThis is a small annual herb producing a glandular stem up to about 35 centimeters tall. The leaves are linear to lance-shaped, with the lower ones lobed and up to about 7 centimeters in length. The daisylike flower heads contain toothed yellow ray florets and yellow disc florets with yellow anthers. The fruit is an achene; fruits on the disc florets have a long white pappus of plumelike bristles.
References
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