Species Details

Cicuta maculata var. bolanderi

Bolander's water-hemlock

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Photo of Cicuta maculata var. bolanderi
© 2007 Doreen L Smith
Photo of Cicuta maculata var. bolanderi
© 2007 Doreen L Smith
Scientific Name:
Cicuta maculata L. var. bolanderi (S. Watson) G.A. Mulligan
Common Name:
Bolander's water-hemlock
Family: Apiaceae
Element Code: PDAPI0M051
USDA Plants Symbol: CIMAB
Synonyms/Other Names:
CA Rare Plant Rank: 2B.1
Fed List: None
State List: None
Global Rank: G5T4T5
State Rank:
S2?
Other Status: SB_CalBG/RSABG
CRPR Changes:
changed from 2.1 to 2B.1 on 2013-06-12
added to 2.1 on 2009-01-05
Add Date: 1974-01-01
Date Edited: 2023-08-01
Lifeform: perennial herb
Blooming Period: Jul-Sep
JFMAMJJASOND
Elevation:
0 - 200 meters
0 - 655 feet
General Habitats:
  • Marshes and swamps (brackish, coastal, freshwater)
Microhabitat Details:
Microhabitat:
Notes:
Threats:
Threatened by development, non-native plants, and hydrological alterations.
Taxonomy:
Threat List Total: 2
Total EOs % of EOs
EOs with Threat Listed: 1 6 %
THREAT LIST:
Erosion/runoff 1 5%
Recreational use (non-ORV) 1 5%
Total Occurrences: 17
Element Occurrence Ranks:
A B C D X U
0 2 1 0 0 14
Occurrence Status:
Historical >20 Years 11
Recent <=20 Years 6
Presence:
Presumed Extant 17
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Arizona (AZ), California (CA), New Mexico (NM), Washington (WA)
California Counties and Islands: Name (Code)
Contra Costa (CCA), Marin (MRN), Sacramento (SAC), Santa Barbara (SBA)*, Solano (SOL)
Quads: Name (Quad Code)
Antioch North (3812117), Benicia (3812212), Birds Landing (3812127), Brentwood (3712186), Briones Valley (3712282), Bruceville (3812134), Casmalia (3412075), Courtland (3812135), Dozier (3812137), Drakes Bay (3812218), Fairfield South (3812221), Honker Bay (3812118), Inverness (3812217), Isleton (3812125), Jersey Island (3812116), Thornton (3812124), Tomales (3812228), Vine Hill (3812211)
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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