Helenium bolanderi
Encyclopedia
Helenium bolanderi is a species of flowering plant in the daisy family
known by the common name coastal sneezeweed. It is native to the coastline of Oregon
and northern California
. This is a daisylike perennial herb varying in size from 20 centimeters to well over a meter in height. It has a generally unbranched, erect stem with oval-shaped leaves. The flowers arise on naked peduncles
with one to three flower heads
per inflorescence
. Each flower head has a fringe of golden yellow ray florets reflexed away from a rounded center of disc florets in shades of yellow, red, or brown. The fruit is a tiny, hairy achene
a few millimeters long.
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 coastal sneezeweed. It is native to the coastline of 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 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...
. This is a daisylike perennial herb varying in size from 20 centimeters to well over a meter in height. It has a generally unbranched, erect stem with oval-shaped leaves. The flowers arise on naked peduncles
Peduncle (botany)
In botany, a peduncle is a stem supporting an inflorescence, or after fecundation, an infructescence.The peduncle is a stem, usually green and without leaves, though sometimes colored or supporting small leaves...
with one to three flower heads
Head (botany)
The capitulum is considered the most derived form of inflorescence. Flower heads found outside Asteraceae show lesser degrees of specialization....
per 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...
. Each flower head has a fringe of golden yellow ray florets reflexed away from a rounded center of disc florets in shades of yellow, red, or brown. The fruit is a tiny, hairy achene
Achene
An achene is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate and indehiscent...
a few millimeters long.