Amaranthus albus L.

Ubiquity:  Common?

Distritution: Throughout  

Plant Communities:  Coastal Salt Marsh, Ruderal

Habitats:  Dry, sunny, weedy waste areas; in disturbed places like road sides/beds; in cultivated places like fields

Elevations:  10-700'

Comments:   Collection needed.  Non-native

Updated:  2/18/98


Amaranthus blitoides  S. Wats.

Ubiquity:  Very uncommon

Distritution:  Known only from Pacific Union College, Knoxville-Lakeport Rd., & Wildhorse Valley

Plant Communities:  Ruderal

Habitats:  Dry, sunny, clayey, weedy waste areas; & cultivated places

Elevations:  300-1750'

Comments:  Collection needed

Updated:  2/18/98


Amaranthus californicus ( Moq.) S. Wats.

Ubiquity:  Very uncommon

Distritution:  Known only from Conn Creek, Lake Hennessey, Pope Valley & Knoxville area

Plant Communities: Many  

Habitats:  Moist, sunny or shady flats/lakesides

Elevations:  160-300'

Comments:  Collection needed

Updated:  11/8/97


Amaranthus cruentus  L.

Ubiquity:  Very uncommon

Distritution:  Only known along Hwy. 12 in the Carneros area

Plant Communities:  Ruderal

Habitats:  Dry, sunny, clayey, weedy waste areas; & disturbed places like roadsides/fields

Elevations:  60-130'

Comments:  Non-native.  Collection needed

Updated:  2/18/98


Amaranthus deflexus L.

Ubiquity:  Very uncommon

Distritution:  Known only in few places near & in Napa

Plant Communities:  Ruderal

Habitats:  Dry or moist, sunny, clayey, weedy waste areas; & cultivated places

Elevations:  10-20'

Comments:  Non-native. Collection needed

Updated:  2/18/98


Amaranthus hybridus L.

Ubiquity:  Common

Distritution:  Throughout

Plant Communities:  Ruderal

Habitats:  Dry, sunny, clayey, weedy waste areas; on alluvial deposits

Elevations:  20-1750'

Comments:  Non-native

Updated:  2/18/98


Amaranthus retroflexus L.

Ubiquity:  Very common

Distritution:  Throughout (except Napa Marsh?)

Plant Communities:  Ruderal, Riparian

Habitats:  Moist, sunny, clayey, weedy waste areas/streambeds; & cultivated places; on alluvial deposits

Elevations:  20-1750'

Comments:  Non-native

Updated:  2/18/98