Silene occidentalis
Encyclopedia
Silene occidentalis is a species of flowering plant in the pink family
known by the common name western catchfly. It is endemic to northern California
, where it is known from the southern Cascade Range
and sections of the Modoc Plateau
and Sierra Nevada. It grows in chaparral
and mountain forest habitat. It is a perennial herb growing from a woody, leafy caudex
and taproot
, sending up an erect, mostly unbranched stem which may be 60 centimeters tall. The lance-shaped leaves are up to 12 centimeters long around the caudex, and shorter farther up the stem. Flowers occur in a terminal cyme and sometimes in leaf axils. Each flower is encapsulated in a hairy, glandular calyx of fused sepal
s. The calyx in this species can be very long, nearly 4 centimeters in length in subspecies longistipata. At the end are five pink petals, each with usually four fringelike lobes at the tip.
Caryophyllaceae
The Caryophyllaceae, commonly called the pink family or carnation family, is a family of flowering plants. It is included in the dicotyledon order Caryophyllales in the APG III system, alongside 33 other families, including Amaranthaceae, Cactaceae and Polygonaceae...
known by the common name western catchfly. It is endemic to 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 known from the southern Cascade Range
Cascade Range
The Cascade Range is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, and the notable volcanoes known as the High Cascades...
and sections of the Modoc Plateau
Modoc Plateau
The Modoc Plateau lies in the northeast corner of California as well as parts of Oregon and Nevada. It is a mile-high expanse of lava flows with cinder cones, juniper flats, pine forests, and seasonal lakes. The plateau is thought to have been formed approximately 25 million years ago...
and Sierra Nevada. It grows in chaparral
Chaparral
Chaparral is a shrubland or heathland plant community found primarily in the U.S. state of California and in the northern portion of the Baja California peninsula, Mexico...
and mountain forest habitat. It is a perennial herb growing from a woody, leafy caudex
Caudex
A caudex is a form of stem morphology appearing as a thickened, short, perennial stem that is either underground or near ground level . It may be swollen for the purpose of water storage, especially in xerophytes...
and taproot
Taproot
A taproot is an enlarged, somewhat straight to tapering plant root that grows vertically downward. It forms a center from which other roots sprout laterally.Plants with taproots are difficult to transplant...
, sending up an erect, mostly unbranched stem which may be 60 centimeters tall. The lance-shaped leaves are up to 12 centimeters long around the caudex, and shorter farther up the stem. Flowers occur in a terminal cyme and sometimes in leaf axils. Each flower is encapsulated in a hairy, glandular calyx of fused 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. The calyx in this species can be very long, nearly 4 centimeters in length in subspecies longistipata. At the end are five pink petals, each with usually four fringelike lobes at the tip.