Helenium bigelovii  A. Gray

Ubiquity: Common

Distritution: NE 1/4 (& Napa Marsh?)

Plant Communities:  Riparian (including Coastal Salt Marsh?)

Habitats: Wet, sunny to shaded, marshy streamsides/meadows/springs/ & seasonal drainages; in alluvial & serpentine formations

Elevations: 10-1550'

Comments:  Either hybridizes with H. puberulum.  Napa Marsh report questionable; why not H. bolanderi?

Updated:  3/31/98

Helenium bigelovii x puberulum

Ubiquity:  (Very?) uncommon

Distritution:  Seen at Philander Hunt Arroyo & Butts Canyon

Plant Communities:  Riparian

Habitats:  Moist, shaded, rocky or gravelly, ultramafic seasonal drainages; in an area of serpentine & sedimentary (pea gravel conglomerate) formations

Elevations:  640-720'

Comments:  Appears to be hybridizing here.  Collection needed

Updated:  3/31/98

Helenium bolanderi  A. Gray

Ubiquity: Very uncommon

Distritution: Known only from Fagan's Island in the Napa Marsh

Plant Communities:  Coastal Salt Marsh

Habitats: A wet, sunny, silty, saline, marshy area

Elevation: 6'

Comments:  Not native to Napa Co.

Updated:  3/31/98

Helenium puberulum  DC.

Ubiquity: Common

Distritution:  Throughout (including Napa Marsh?)

Plant Communities:  Riparian, Coastal Prairie

Habitats: Wet, sunny to partially-shaded, gravelly, streamsides/streambanks/ & springs; in volcanic, sedimentary, & alluvial formations

Elevations: 80-1750'

Comments:  Hybridizes with H. bigelovii

Updated:  3/31/98