Calycadenia truncata
Encyclopedia
Calycadenia truncata is a species of flowering plant in the daisy family
known by the common name Oregon western rosinweed. It is native to Oregon
and northern and central California
, where is a common plant in several types of habitats. This is an annual herb producing an erect stem, reddish in color, which may exceed a meter in height. The leaves are linear in shape and up to 10 centimeters long. The inflorescence
bears one or more flower heads
at separate nodes, surrounded by short bract
s tipped with resin glands. The hairy flower heads have a center of many purple-tipped disc florets as well a few yellow ray florets. The fruit is an achene
.
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 name Oregon western rosinweed. It is native to Oregon
Oregon
Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...
and northern and central California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
, where is a common plant in several types of habitats. This is an annual herb producing an erect stem, reddish in color, which may exceed a meter in height. The leaves are linear in shape and up to 10 centimeters long. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
bears one or more flower heads
Head (botany)
The capitulum is considered the most derived form of inflorescence. Flower heads found outside Asteraceae show lesser degrees of specialization....
at separate nodes, surrounded by short bract
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...
s tipped with resin glands. The hairy flower heads have a center of many purple-tipped disc florets as well a few yellow ray florets. The fruit is an achene
Achene
An achene is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate and indehiscent...
.