Asclepias cordifolia  (Benth.) Jepson

Ubiquity:  Common

Distritution: Throughout except Napa & Napa Marsh

Plant Communities:  Mixed Evergreen Forest, Blue Oak Woodland, Regular Chaparral

Habitats:  Dry, sunny, rocky, forested or wooded or brushy slopes; in volcanic or sedimentary places

Elevations:  200-2500'

Comments:  Poisonous

Updated: 2/25/98

Asclepias eriocarpa  Benth.

Ubiquity:  Common

Distritution: NE 1/2 & SE1/4

Plant Communities:  Many

Habitats:  Dry, sunny, gravelly or clayey, sub-barren creeksides/streambeds/pastures; in alluvial areas

Elevations:  320-2100'

Comments:  Poisonous

Updated:  2/25/98

Asclepias fascicularis  Decne. in A. DC.

Ubiquity:  Common

Distritution:  Throughout except Napa Marsh

Plant Communities:  Most, including Ruderal

Habitats:  Dry, sunny, gravelly or clayey, ultramafic or not, streamsides/creekbeds/valley floors/foothills/ & roadsides; most geologic formations including serpentine

Elevations:  20-1270'

Comments:  Poisonous

Updated:  2/25/98

Asclepias solanoana  Woodson

Ubiquity:  Very uncommon

Distritution:  Known only from Sensitive Plant Canyon in the Knoxville Area, (Oathill Mine Rd.?)

Plant Communities:  Serpentine Chaparral

Habitats:  Dry, sunny, rocky, ultramafic, sub-barren tallus slopes; in areas of serpentine

Elevations:  1249-1318'

Comments:  Limited Distribution (CNPS-4).  Serpentine endemic.  Not to be collected.  Poisonous.

Updated:  2/25/98

Asclepias speciosa  Torr.

Ubiquity:  Very uncommon

Distritution:  Known only from Table Mountain & Mountain Mill House

Plant Communities:  Mixed Evergreen Forest

Habitats:  Dry, rocky roadsides; in volcanic areas

Elevation:  1600'

Comments:  Poisonous

Updated:  2/25/98