Allium acuminatum Hook.

Ubiquity:  Uncommon

Distritution:  N1/2, SW1/4 except Napa Marsh

Plant Communities:  Yellow Pine Forest, Blue Oak Woodland, (Chaparral?)

Habitats:  Dry, sunny, brushy or wooded slopes/summits/ & flats; in volcanic areas

Elevations:  400-898'

Comments:  

Updated: 2/18/98

Allium amplectens Torr.

Ubiquity:  Common

Distritution:  Throughout except Napa Marsh

Plant Communities:  Yellow Pine Forest, Blue Oak Woodland, Annual Grassland

Habitats:  Dry, sunny, rocky or clayey, ultramafic or not, grassy summits/slopes; occasionally fields/streamsides/creekbeds; in serpentine & volcanic areas

Elevations:  395-2500'

Comments:  

Updated:  2/18/98

Allium cratericola Eastw.

Ubiquity:  Very uncommon

Distritution:  Only in the Craters Region (= Bear Valley) & Oat Hill Mine Rd.

Plant Communities:  Regular Chaparral

Habitats:  Dry, sunny, rocky, sub-barren flats/slopes/benches; in volcanic areas

Elevations:  2400-2600'

Comments:  

Updated:  2/18/98

Allium falcifolium  H. & A.

        Ubiquity:  Common

Distritution:  Throughout except Napa Marsh

Plant Communities:  Regular & Serpentine Chaparral

Habitats:  Dry, sunny, rocky, brushy or sub-barren slopes/summits/flats; in serpentine areas & occasionally volcanic places

Elevations:  250-2400'

Comments:  

Updated:  2/18/98

Allium fimbriatum  S. Wats.

Ubiquity:  (Un?)common

Distritution:  NE1/4 & SW1/4 except Napa Marsh

Plant Communities:  Serpentine Chaparral

Habitats:  Dry, sunny, rocky, brushy or grassy slopes/flats/& talus; on serpentine

Elevations:  200-1400'

Comments:  Habitats need to be better noted

Updated:  2/18/98

Allium lacunosum  S. Wats.

Ubiquity:  Very uncommon

Distritution: Known only from Leoma Lake area in Wildhorse Valley 

Plant Communities:  Regular Chaparral

Habitats:  Dry, sunny, rocky, sub-barren slopes; in volcanic areas

Elevations:  1410'

Comments:  Collection needed.  Not native to Napa Co.?

Updated:  2/18/98

Allium neapolitanum  Cirillo

Ubiquity:  Very uncommon

Distritution:  Probably throughout except Napa Marsh

Plant Communities:  Ruderal

Habitats:  Old lanscapes

Elevations:  20-600'

Comments:  Non-native. Collection needed

Updated:  2/18/98

Allium serra  D. McNeal & F. Ownbey

Ubiquity:  (Un?)common

Distritution: American Canyon to the Knoxville area (= W1/2)

Plant Communities:  Serpentine Chaparral and Coastal Prairie

Habitats:  Dry, sunny, rocky, grassy or brushy, sub-barren areas; in serpentine places; occasionally in volcanic areas

Elevations:  300-2200'

Comments: Collection needed.  = A. serratum

Updated: 2/18/98

Allium unifolium  Kell.

Ubiquity:  Very uncommon

Distritution:  Throughout, except Napa Marsh (SE1/4?)

Plant Communities:  Many

Habitats:  Moist, sunny, rocky or clayey, ultramafic or not, grassy places; & in cultivated areas like fields; in volcanic, serpentine, & sedimentary substrata

Elevations:  120-1600'

Comments:  

Updated:  2/18/98