Ivesia pickeringii
Encyclopedia
Ivesia pickeringii is an uncommon species of flowering plant in the rose family
known by the common names silky mousetail and Pickering's ivesia. It is endemic to the Klamath Mountains
of northern California
where it is a plant of mountain meadows, often on serpentine soil
s. This is a perennial herb forming tufts of long, erect leaves and thin, naked stems. Each leaf is a taillike strip of overlapping lobed leaflets. The reddish to greenish stems reach 30 to 50 centimeters in height and bear inflorescence
s of clustered flowers. The stems, leaves, and inflorescence]]s are all covered in fuzzy white to gray hairs. Each flower is about a centimeter wide, with pinkish-green triangular sepal
s and longer, narrower pink or purple petals. In the center of the flower are 20 stamen
s and a few pistils
.
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 names silky mousetail and Pickering's ivesia. It is endemic to the Klamath Mountains
Klamath Mountains
The Klamath Mountains, which include the Siskiyou, Marble, Scott, Trinity, Trinity Alps, Salmon, and northern Yolla-Bolly Mountains, are a rugged lightly populated mountain range in northwest California and southwest Oregon in the United States...
of 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...
where it is a plant of mountain meadows, often on serpentine soil
Serpentine soil
A serpentine soil is derived from ultramafic rocks, in particular serpentinite, a rock formed by the hydration and metamorphic transformation of ultramafic rock from the Earth's mantle....
s. This is a perennial herb forming tufts of long, erect leaves and thin, naked stems. Each leaf is a taillike strip of overlapping lobed leaflets. The reddish to greenish stems reach 30 to 50 centimeters in height and bear 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...
s of clustered flowers. The stems, leaves, and inflorescence]]s are all covered in fuzzy white to gray hairs. Each flower is about a centimeter wide, with pinkish-green 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 longer, narrower pink or purple petals. In the center of the flower are 20 stamen
Stamen
The stamen is the pollen producing reproductive organ of a flower...
s and a few 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...
.