Layia glandulosa
Encyclopedia
Layia glandulosa is a species of flowering plant in the daisy family
known by the common names whitedaisy tidytips and white layia. It is native to western North America from British Columbia
to Baja California
to Utah
, where it is common in a number of habitat types.
The flower head
has a base of green, hairy, glandular phyllaries
. The face is fringed with ray florets which are usually white, but sometimes yellow. The center contains yellow disc florets with yellow anthers
. The fruit is a hairy achene
; fruits on disc florets have a pappus
of stiff white hairs.
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
known by the common names whitedaisy tidytips and white layia. It is native to western North America from British Columbia
British Columbia
British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...
to Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
to Utah
Utah
Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...
, where it is common in a number of habitat types.
Description
This is an annual herb producing an erect stem to a maximum height just over half a meter. The stem and foliage are dotted with dark glandular hairs and the plant is sometimes scented. The thin leaves are linear to oval-shaped, with the lower ones often lobed and approaching 10 centimeters in maximum length.The flower head
Head (botany)
The capitulum is considered the most derived form of inflorescence. Flower heads found outside Asteraceae show lesser degrees of specialization....
has a base of green, hairy, glandular phyllaries
Bract
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis, or cone scale. Bracts are often different from foliage leaves. They may be smaller, larger, or of a different color, shape, or texture...
. The face is fringed with ray florets which are usually white, but sometimes yellow. The center contains yellow disc florets with yellow anthers
Stamen
The stamen is the pollen producing reproductive organ of a flower...
. The fruit is a hairy achene
Achene
An achene is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate and indehiscent...
; fruits on disc florets have a pappus
Pappus (flower structure)
The pappus is the modified calyx, the part of an individual disk, ray or ligule floret surrounding the base of the corolla, in flower heads of the plant family Asteraceae. The pappus may be composed of bristles , awns, scales, or may be absent. In some species, the pappus is too small to see...
of stiff white hairs.