Listing
Jun 16, 1976
Jun 16, 1976 Listing (Endangered)
Proposed Endangered Status for 1700 U.S. Plants; 41 FR 24523 24572
- Publication type: Proposed
Item 1
FWS Focus
Overview
Characteristics
Overview
Contra Costa wallflower (Erysimum capitatum var. angustatum) is an endangered plant associated with the Antioch Dunes ecosystem in northern California. With a few exceptions, Contra Costa wallflower is only found at Antioch Dunes National Wildlife Refuge, where the last remnants of the Antioch Dunes are preserved.
Scientific Name
Erysimum capitatum var. angustatum
Common Name
Contra Costa wallflower
sand dune wallflower
FWS Category
Flowering Plants
Identification Numbers
Characteristics
Characteristic category
Habitat
Characteristics
Habitat
Contra Costa wallflower is associated with Antioch Dunes, a riverbank dune system that historically reached heights of over 100 feet and may have stretched for miles along the San Joaquin River. With a few minor exceptions Contra Costa wallflower can only be found at Antioch Dunes National Wildlife Refuge (ADNWR), the last remnants of the Antioch Dunes.
Characteristic category
Physical Characteristics
Characteristics
Size & Shape
??????Contra Costa wallflower is an herbaceous, short-lived perennial characterized by small yellow flowers and long, thin stems.
Color & Pattern
Contra Costa wallflower is characterized by small yellow flowers.
Characteristic category
Life Cycle
Characteristics
Life Cycle
??????Contra Costa wallflower is an herbaceous, short-lived perennial.
Characteristic category
Similar Species
Characteristics
Similar Species
???????Contra Costa wallflower is a variety of Western wallflower (Erysimum capitatum). Contra Costa wallflower is similar in appearance to other varieties of Western wallflower and other species in the genus Erysimum. Western wallflower is a member of the mustard family (Brassicaceae) that occurs in suitable habitat in western North America from México to Canada. The use of “wallflower” in the common name indicates the tendency of species in the genus Erysimum to grow on old rock walls and other rocky substrates.
Geography
Characteristics
Range
??????Contra Costa wallflower is an endangered plant associated with the Antioch Dunes ecosystem in northern California. Antioch Dunes is a riverbank dune system that historically reached heights of over 100 feet and may have stretched for miles along the south bank of the San Joaquin River. With a few exceptions, Contra Costa wallflower is only found at Antioch Dunes National Wildlife Refuge, where the last remnants of the Antioch Dunes are preserved.
Timeline
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9 Items