Species Details

Dithyrea maritima

beach spectaclepod

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Scientific Name:
Dithyrea maritima A. Davids.
Common Name:
beach spectaclepod
Family: Brassicaceae
Element Code: PDBRA10020
USDA Plants Symbol: DIMA6
Synonyms/Other Names:
Lifeform: perennial rhizomatous herb
Blooming Period: Mar-May
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Elevation:
3 - 50 meters
10 - 165 feet
General Habitats:
  • Coastal dunes
  • Coastal scrub (sandy)
Microhabitat Details:
Microhabitat:
Notes:
Extirpated from half of its historical range. Need historical quads for SCT Isl. Last seen in LAX Co. in 1932. Threatened by trampling, vehicles, and non-native plants. See Erythea 2:179 (1894) for original description.
Threats:
Taxonomy:
Threat List Total: 8
Total EOs % of EOs
EOs with Threat Listed: 13 46 %
THREAT LIST:
Non-native plant impacts 6 21%
Other 5 17%
Foot traffic/trampling 4 14%
ORV activity 3 10%
Erosion/runoff 2 7%
Total Occurrences: 28
Element Occurrence Ranks:
A B C D X U
2 4 0 1 3 18
Occurrence Status:
Historical >20 Years 18
Recent <=20 Years 10
Presence:
Presumed Extant 25
Possibly Extirpated 0
Presumed Extirpated 3
California Endemic:
California Island:
States: Name (Code)
Baja California (BA), California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX)*, San Luis Obispo (SLO), Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Arroyo Grande NE (3512025), Beverly Hills (3411814), Casmalia (3412075), Morro Bay South (3512037), Oceano (3512015), Pismo Beach (3512026), Point Sal (3412086), Redondo Beach (3311874)*, San Miguel Island East (3312083), San Nicolas Island (3311924), Santa Catalina East (3311833), Santa Catalina North (3311844), Santa Catalina South (3311834), Santa Catalina West (3311845), Surf (3412065), Topanga (3411815), Venice (3311884)*
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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