Hazardia brickellioides
Encyclopedia
Hazardia brickellioides is a species of shrub
in the daisy family
known by the common name brickellbush goldenweed. It is native to the Mojave Desert
of California
and Nevada
, where it grows in rocky limestone
habitat. This bushy shrub produces a stem 20 to 80 centimeters tall which is coated in rough hairs often tipped with yellowish resin glands. The hairy, leathery leaves are oval in shape, up to about 3.5 centimeters long, and usually lined with spiny teeth. The inflorescence
produces several flower heads
each roughly a centimeter wide when open. The flower head is lined with roughly hairy, glandular phyllaries
and contains disc florets surrounded with a fringe of tiny yellow ray florets. The fruit is a hairy white achene
topped with a pappus
of many white or brown bristles.
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...
in the daisy family
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 brickellbush goldenweed. It is native to the Mojave Desert
Mojave Desert
The Mojave Desert occupies a significant portion of southeastern California and smaller parts of central California, southern Nevada, southwestern Utah and northwestern Arizona, in the United States...
of 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...
and Nevada
Nevada
Nevada is a state in the western, mountain west, and southwestern regions of the United States. With an area of and a population of about 2.7 million, it is the 7th-largest and 35th-most populous state. Over two-thirds of Nevada's people live in the Las Vegas metropolitan area, which contains its...
, where it grows in rocky limestone
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....
habitat. This bushy shrub produces a stem 20 to 80 centimeters tall which is coated in rough hairs often tipped with yellowish resin glands. The hairy, leathery leaves are oval in shape, up to about 3.5 centimeters long, and usually lined with spiny teeth. 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...
produces 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....
each roughly a centimeter wide when open. The flower head is lined with roughly 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...
and contains disc florets surrounded with a fringe of tiny yellow ray florets. The fruit is a hairy white achene
Achene
An achene is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate and indehiscent...
topped 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 many white or brown bristles.