Hymenoxys hoopesii
Encyclopedia
Hymenoxys hoopesii is a species of flowering plant in the daisy family
known by the common names owl's claws and orange sneezeweed. It is native to the western United States, where it grows in habitats of moderate elevation, such as mountain meadows. It is an erect perennial herb approaching a meter in maximum height, with smooth-edged leaves oval on the lower stem and lance-shaped toward the top. The inflorescence
bears several flower heads
on erect peduncles
, each lined with a base of hairy, pointed phyllaries
. The flower head has a center of disc florets fringed with many orange or yellow ray florets up to 3.5 centimeters long. The fruit is an achene
with a pappus
of scales.
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 owl's claws and orange sneezeweed. It is native to the western United States, where it grows in habitats of moderate elevation, such as mountain meadows. It is an erect perennial herb approaching a meter in maximum height, with smooth-edged leaves oval on the lower stem and lance-shaped toward the top. 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 several flower heads
Head (botany)
The capitulum is considered the most derived form of inflorescence. Flower heads found outside Asteraceae show lesser degrees of specialization....
on erect 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...
, each lined with a base of hairy, pointed 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 flower head has a center of disc florets fringed with many orange or yellow ray florets up to 3.5 centimeters long. 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...
with 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 scales.