Observation  Detail   gp307 
 
Plant Name   Hypericum grandifolium   Canary Island St John's Wort
Date 2011-11-01
Observer Mike Perlmutter     (PROFILE)
Source:Bay Area Early Detection Network
Natural Status wild
County Marin
Coordinates 37.87139,-122.56324: LOCATION CLOSEUP   
Elevation 101 meters
Location Edge of patch. Below pullout on HYW 1. Caltrans right of way. Plants are scattered on the steep rocky slope below the highway. Growing with poison oak and other coastal scrub.
Notes Surveyed with Caltrans employee Sean Casteel on November 1, 2011. Under contract with BAEDN, BAELIN Inc. initiated removal on November 15, 2011. Materials were bagged and disposed of in a landfill.
Number of Plants 1+Phenology Fruiting
Group AssociationEarly Detection Network
Location Quality HIGHWhat Grows Here? (at this location)
Calflora ID gp307 View this record in  
Plant Observation Entry
Added to Calflora 2011-11-02
Documentation Specimen.
Type incidental observation

For more information about this record, please contact the observer(s) or source institution(s) mentioned above.


below the road, scattered patches of Hypericum grandifolium invade disturbed slope and coastal scrub

Photo © 2011
Michael Perlmutter


Caltrans employee Shawn Casteel mapping edge of infestation.

© 2011
Michael Perlmutter


Scattered Hypericum grandifolium plants in foreground. Thimbleberry in below. Note structure in background.

© 2011
Michael Perlmutter


Andre Gauthier (BAELIN) with a large Hypericum he removed. November 15, 2011

© 2011
Michael Perlmutter


Shane Morgan (BAELIN) weed-wrenching a large Hypericum from the coastal scrub. November 15, 2011

© 2011
Michael Perlmutter


Derrin (BAELIN) with Hypericum removed from the roadside. Check out those roots! November 15, 2011

© 2011
Michael Perlmutter


BAELIN contractors removing Hypericum from the steep slope below HWY 1 November 15, 2011

© 2011
Michael Perlmutter
    Note that Calflora presents observation data from diverse sources. Some records may be multiple observations of the same plant populations or duplicate reports from different sources. Please carefully review data for your particular application.

    Suggested Citation
    Calflora: Information on California plants for education, research and conservation. [web application]. 2014. Berkeley, California:
    The Calflora Database [a non-profit organization].
    Available: http://www.calflora.org/   (Accessed: Oct 23, 2014).

    Please acknowledge contributors, both institutions and individual observers, mentioned above.

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