Silene polypetala
Encyclopedia
Silene polypetala is a rare species of flowering plant in the pink family
known by the common names eastern fringed catchfly and fringed campion. It is native to Georgia
and northern Florida
in the United States. It is threatened by the loss and degradation of its habitat. It is a federally listed endangered species
of the United States.
This plant is a rhizomatous
perennial herb growing from a thick taproot
topped with a woody, branching caudex
. There are several stems and shoots measuring up to 40 centimeters in length. The lance-shaped leaves are each up to 9 centimeters long by 25 wide and grow in pairs along the stem. The inflorescence
usually has three flowers. Each flower has five pink or white fan-shaped petals with fringed tips, each measuring 1.5 to 2.5 centimeters long. The base of the flower is encased in a papery 10-veined calyx of sepal
s. The plant can reproduce vegetatively
by resprouting from its rhizome, so what appears to be several plants may be one plant with genetically identical clones
.
This plant grows in soils of sandy, calcareous
loam
, often in moist habitat in forests and woods.
The main threat to the species is the loss of its habitat. In Georgia some populations have been endangered from logging
and excavation activities, resulting in habitat fragmentation
. The introduced species
English ivy
(Hedera helix) has invaded
one population. Other invasive plant species include Japanese honeysuckle (Lonicera japonica), Chinese privet (Ligustrum sinense), spiceberry (Ardisia crenata), heavenly bamboo
(Nandina domestica), and golden bamboo
(Phyllostachys aurea). Though some populations have been destroyed, some new ones have been discovered in the meantime.
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 names eastern fringed catchfly and fringed campion. It is native to Georgia
Georgia (U.S. state)
Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...
and northern Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...
in the United States. It is threatened by the loss and degradation of its habitat. It is a federally listed endangered species
Endangered species
An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...
of the United States.
This plant is a rhizomatous
Rhizome
In botany and dendrology, a rhizome is a characteristically horizontal stem of a plant that is usually found underground, often sending out roots and shoots from its nodes...
perennial herb growing from a thick 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...
topped with a woody, branching 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...
. There are several stems and shoots measuring up to 40 centimeters in length. The lance-shaped leaves are each up to 9 centimeters long by 25 wide and grow in pairs along the stem. 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...
usually has three flowers. Each flower has five pink or white fan-shaped petals with fringed tips, each measuring 1.5 to 2.5 centimeters long. The base of the flower is encased in a papery 10-veined calyx of 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 plant can reproduce vegetatively
Vegetative reproduction
Vegetative reproduction is a form of asexual reproduction in plants. It is a process by which new individuals arise without production of seeds or spores...
by resprouting from its rhizome, so what appears to be several plants may be one plant with genetically identical clones
Cloning
Cloning in biology is the process of producing similar populations of genetically identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually. Cloning in biotechnology refers to processes used to create copies of DNA fragments , cells , or...
.
This plant grows in soils of sandy, calcareous
Calcareous
Calcareous is an adjective meaning mostly or partly composed of calcium carbonate, in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines.-In zoology:...
loam
Loam
Loam is soil composed of sand, silt, and clay in relatively even concentration . Loam soils generally contain more nutrients and humus than sandy soils, have better infiltration and drainage than silty soils, and are easier to till than clay soils...
, often in moist habitat in forests and woods.
The main threat to the species is the loss of its habitat. In Georgia some populations have been endangered from logging
Logging
Logging is the cutting, skidding, on-site processing, and loading of trees or logs onto trucks.In forestry, the term logging is sometimes used in a narrow sense concerning the logistics of moving wood from the stump to somewhere outside the forest, usually a sawmill or a lumber yard...
and excavation activities, resulting in habitat fragmentation
Habitat fragmentation
Habitat fragmentation as the name implies, describes the emergence of discontinuities in an organism's preferred environment , causing population fragmentation...
. The introduced species
Introduced species
An introduced species — or neozoon, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its indigenous or native distributional range, and has arrived in an ecosystem or plant community by human activity, either deliberate or accidental...
English ivy
Hedera helix
Hedera helix is a species of ivy native to most of Europe and western Asia. It is labeled as an invasive species in a number of areas where it has been introduced.-Description:...
(Hedera helix) has invaded
Invasive species
"Invasive species", or invasive exotics, is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats, with several definitions....
one population. Other invasive plant species include Japanese honeysuckle (Lonicera japonica), Chinese privet (Ligustrum sinense), spiceberry (Ardisia crenata), heavenly bamboo
Nandina
-Description:Nandina domestica commonly known as nandina, heavenly bamboo or sacred bamboo, is a suckering shrub in the Barberry family, Berberidaceae. It is a monotypic genus, with this species as its only member. It is native to eastern Asia from the Himalaya east to Japan.Despite the common...
(Nandina domestica), and golden bamboo
Phyllostachys aurea
Phyllostachys aurea is a bamboo species in the genus Phyllostachys native to China and introduced in Japan. It is also a garden ornamental, and the most commonly cultivated bamboo in the United States, where they grow very aggressively in the southern, warm and moist climates.-Vernacular...
(Phyllostachys aurea). Though some populations have been destroyed, some new ones have been discovered in the meantime.