Sibara filifolia | |
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Scientific classification
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Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Brassicales |
Family: | Brassicaceae |
Genus: | Sibara |
Species: | S. filifolia
|
Binomial name | |
Sibara filifolia | |
Synonyms | |
Arabis filifolia |
Sibara filifolia, the Santa Cruz Island winged rockcress [1] or Santa Cruz Island rockcress, is a rare species of flowering plant in the family Brassicaceae. It is endemic to the Channel Islands of California, where it is now known from a few occurrences on San Clemente Island and one population on Catalina Island. [2]
It was once present on Santa Cruz Island, and perhaps other Channel Islands, but these occurrences were extirpated by feral goats and pigs. [3] The plant was feared extinct until small remaining occurrences were discovered in 1986. [4] A 1995 estimate of the total remaining population was 500 individuals. [3] The plant became a federally listed endangered species of the United States in 1997, along with Cercocarpus traskiae and Lithophragma maximum, two other rare Channel Islands plants. [5]
Sibara filifolia is an annual herb producing a hairless, sometimes waxy stem up to around 30 centimeters in maximum height. The leaves are very narrow and almost strandlike, measuring less than a millimeter wide, and growing about 1.5 centimeters long. The flowers each have four spoon-shaped lavender petals a few millimeters long. The fruit is a flattened, elongated silique up to 4 centimeters long containing tiny seeds.
Sibara filifolia grows in the coastal sage scrub of two islands off the coast of southern California.
Sibara filifolia | |
---|---|
![]() | |
Scientific classification
![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Brassicales |
Family: | Brassicaceae |
Genus: | Sibara |
Species: | S. filifolia
|
Binomial name | |
Sibara filifolia | |
Synonyms | |
Arabis filifolia |
Sibara filifolia, the Santa Cruz Island winged rockcress [1] or Santa Cruz Island rockcress, is a rare species of flowering plant in the family Brassicaceae. It is endemic to the Channel Islands of California, where it is now known from a few occurrences on San Clemente Island and one population on Catalina Island. [2]
It was once present on Santa Cruz Island, and perhaps other Channel Islands, but these occurrences were extirpated by feral goats and pigs. [3] The plant was feared extinct until small remaining occurrences were discovered in 1986. [4] A 1995 estimate of the total remaining population was 500 individuals. [3] The plant became a federally listed endangered species of the United States in 1997, along with Cercocarpus traskiae and Lithophragma maximum, two other rare Channel Islands plants. [5]
Sibara filifolia is an annual herb producing a hairless, sometimes waxy stem up to around 30 centimeters in maximum height. The leaves are very narrow and almost strandlike, measuring less than a millimeter wide, and growing about 1.5 centimeters long. The flowers each have four spoon-shaped lavender petals a few millimeters long. The fruit is a flattened, elongated silique up to 4 centimeters long containing tiny seeds.
Sibara filifolia grows in the coastal sage scrub of two islands off the coast of southern California.