Ivesia lycopodioides
Encyclopedia
Ivesia lycopodioides is a species of flowering plant in the rose family
known by the common name clubmoss mousetail, or clubmoss ivesia. It is native to the Sierra Nevada and to regions east of the range in California
. It may also be found beyond the state line into Nevada
. This is a perennial herb which grows in the crevices of rock ledges in the mountains and in wet high-elevation meadows. It produces a rosette of flat to cylindrical leaves up to 15 centimeters long, each of which is made up of many tiny, lobed leaflets. The stems may grow erect or drooping to 30 centimeters long and each holds an inflorescence
of clustered flowers. Each flower has hairy, greenish triangular sepal
s and much larger oval-shaped petals of bright yellow. In the center of the flower are usually five stamen
s and several pistils
. There are three subspecies.
Rosaceae
Rosaceae are a medium-sized family of flowering plants, including about 2830 species in 95 genera. The name is derived from the type genus Rosa. Among the largest genera are Alchemilla , Sorbus , Crataegus , Cotoneaster , and Rubus...
known by the common name clubmoss mousetail, or clubmoss ivesia. It is native to the Sierra Nevada and to regions east of the range in 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...
. It may also be found beyond the state line into 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...
. This is a perennial herb which grows in the crevices of rock ledges in the mountains and in wet high-elevation meadows. It produces a rosette of flat to cylindrical leaves up to 15 centimeters long, each of which is made up of many tiny, lobed leaflets. The stems may grow erect or drooping to 30 centimeters long and each holds an 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...
of clustered flowers. Each flower has hairy, greenish triangular sepal
Sepal
A sepal is a part of the flower of angiosperms . Collectively the sepals form the calyx, which is the outermost whorl of parts that form a flower. Usually green, sepals have the typical function of protecting the petals when the flower is in bud...
s and much larger oval-shaped petals of bright yellow. In the center of the flower are usually five stamen
Stamen
The stamen is the pollen producing reproductive organ of a flower...
s and several pistils
Gynoecium
Gynoecium is most commonly used as a collective term for all carpels in a flower. A carpel is the ovule and seed producing reproductive organ in flowering plants. Carpels are derived from ovule-bearing leaves which evolved to form a closed structure containing the ovules...
. There are three subspecies.