Key 2: Series dominated by shrubs

Key Characteristics

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1 Shrubs with evergreen, leathery leaves dominant (chaparral) 5
1' Shrubs with evergreen, leathery leaves not dominant (chenopod scrub, coastal scrub, desert scrub, and other types) 2

    2 Subshrubs form primary canopy

Key to shrublands dominated by subshrubs p. 91

    2' Subshrubs do not form primary canopy

3
3 One single species dominates shrub canopy Key to shrublands where one species dominates p. 91
3' No species dominates shrub canopy 4

    4 Two species similarly important in shrub canopy

Key to shrublands where two species are similarly important p. 94

    4' More than two species similarly important in shrub canopy

Key to shrublands where more than two species are similarly important p. 94
5 One single species dominates shrub canopy Key to chaparrals where one species dominates p. 95
5' No single species dominates shrub canopy 6

    6 Two species similarly important in shrub canopy

Key to chaparrals where two species are similarly important p. 96

    6' More than two species similarly important in shrub canopy

Key to chaparrals where more than two species are similarly important p. 97
Key to shrublands dominated by subshrubs
1 Plants of the coastal dunes 2
1' Plants of interior dunes 3

    2 Sand-verbena and bursage important

Sand-verbena - beach bursage series

    2' Dune lupine and heather goldenbush important

Dune lupine-goldenbush series
3 Plants of interior dunes Desert sand-verbena series
3' Plants of riverbank dunes; d-CenV See unique stands section p. 325
Key to shrublands where one species dominates
1 Emergent trees over a shrub canopy; ColD, MojD desert scrubs
  Catclaw acacia series
  Foothill palo verde-saguaro series
  Joshua tree series
  Mesquite series [see tree series]
  Mojave yucca series
  Nolina series
  Ocotillo series
  Tamarisk series
  See unique stands section p. 325
1' Emergent trees absent or if present over a shrub canopy then not in ColD, MojD 2

    2 A bitterbrush, sagebrush or chenopod dominant

3

    2' A sagebrush or chenopod not dominant

4
3 Bitterbrush dominant Bitterbrush series
3' Bitterbrush not dominant 5

    4 A sagebrush dominant

sagebrush scrubs
  Big sagebrush series
  Black sagebrush series
  California sagebrush series
  Low sagebrush series
  Rothrock sagebrush series

    4' A chenopod dominant

chenopod scrubs
  Allscale series
  Bush seepweed series
  Desert-holly series
  Fourwing saltbush series
  Greasewood series
  Hop-sage series
  Iodine bush series
  Pickleweed series [see herbaceous plant series]
  Shadscale series
  Spinescale series
  Winterfat series
5 Rabbitbrush dominant Rabbitbrush scrubs
  Parry rabbitbrush series
  Rubber rabbitbrush series
5' Rabbitbrush not dominant 6

    6 A willow dominant

willow thickets
  Arroyo willow series [see tree series]
  Black willow series [see tree series]
  Hooker willow series [see tree series]
  Narrowleaf willow series
  Pacific willow series [see tree series]
  Red willow series [see tree series]
  Sandbar willow series
  Sitka willow series [see tree series]

    6' A willow not dominant

7
7 Alder dominant Mountain alder series
  Sitka alder series
7' Alder not dominant 8

    8 Coastal scrub species dominant

coastal scrubs
  Black sage series
  Brittlebush series
  Broom series
  California buckwheat series
  California encelia series
  California sagebrush series
  Coyote bush series
  Purple sage series
  Scalebroom series
  Sumac series
  White sage series

    8' Coast scrub species not dominant

9
9 Desert scrub species dominant; ColD, MojD desert scrubs
  Big galleta series
  Black bush series
  Brittlebush series
  Catclaw acacia series
  California buckwheat series
  Creosote bush series
  Iodine bush series
  Mesquite series [see tree series]
  Teddy-bear cholla series
  Scalebroom series
  White bursage series
9' Desert scrub species not dominant 10

    10 A Ceanothus species dominant

ceanothus brushfields
  Blue blossom series
  Deerbrush series
  Tobacco brush series

    10' A Ceanothus species not dominant

11
11 A Holodiscus dominant Holodiscus series
11' A Holodiscus not dominant 12

    12 A Quercus dominant

oak brushfields
  Brewer oak series
  Huckleberry oak series
  Sadler oak series

    12' A Quercus not dominant

13
13 Wax current or rock-gilia conspicuous See habitats section p. 348
13' Wax current or rock-gilia not conspicuous 14

    14 Exotic species dominant

Non-native brushfields
  Broom series
  Tamarisk series
  Yellow bush lupine series

    14' Exotic species not dominant

Native brushfields
  Arrow weed series
  Birchleaf mountain-mahogany series [see tree series]
  Bush chinquapin series
  Buttonbush series
  Mexican elderberry series
  Mountain heather-bilberry series
  Mulefat series
  McNab cypress series[see tree series]
  Sumac series
  Water birch series [see tree series]
Key to shrublands where two species are similarly important
1 Willows important Mixed willow series [see tree series]
  See habitats section p. 348
1' Willows not dominant 2

    2 Mountain heather important

Mountain heather-bilberry series

    2' Mountain heather not important

3
3 Goldenbush important Bladderpod-California ephedra-narrowleaf goldenbush series
  Dune lupine-goldenbush series
3' Goldenbush not important 4

    4 Coastal scrub species important

coastal scrubs
  Birchleaf mountain-mahogany-California buckwheat series
  Brittlebush series
  Brittlebush-white bursage series
  California buckwheat-white sage series
  California sagebrush-California buckwheat series
  Chamise-black sage series
  Chamise-white sage series
  Purple sage series
  Salal-black huckleberry series
  White sage series

    4' Coastal scrub species not important

5
5 Bush potentilla, rock-gilia or wax current present See habitats section p. 348
5' Big sagebrush or creosote bush scrub species important desert scrubs
  Brittlebush series
  Catclaw acacia series
  Creosote bush-white bursage series
  Foothill palo verde-saguaro series
  Joshua tree series
  Mesquite series [see tree series]
  Mixed saltbush series
  Mojave yucca series
  Nolina series
  Ocotillo series
  See unique stands section p. 325
Key to shrublands where more than two species are similarly important
1 Willows important Mixed willow series
  See habitats section p. 348
1' Willows not important 2

    2 Creosote brush present

desert scrubs
  Brittlebush-white bursage series
  Catclaw acacia series
  Foothill palo verde-saguaro series
  Joshua tree series
  Mesquite series [see tree series]
  Mojave yucca series
  Nolina series
  Ocotillo series
  See unique stands section p. 325

    2' Creosote brush not present

mixed scrubs
  Bladderpod-California ephedra-narrowleaf goldenbush series
  Coast prickly-pear series
  Brittlebush-white bursage series
  Dune lupine-goldenbush series
  Mixed sage series
  Mixed saltbush series
  Sumac series
  See habitats section p. 348
Key to chaparrals where one species dominates
1 An Adenostoma species dominant or important Chamise series
  Red shank series
1' Adenostoma species not dominant, may be present 2

    2 A Ceanothus dominant

ceanothus chaparrals
  Bigpod ceanothus series
  Blue blossom series
  Chaparral whitethorn series
  Deerbrush series
  Hairyleaf ceanothus series
  Hoaryleaf ceanothus series
  Mountain whitethorn series
  Tobacco brush series
  Wedgeleaf ceanothus series

    2' A Ceanothus not dominant

3
3 A manzanita dominant manzanita chaparrals
  Bigberry manzanita series
  Eastwood manzanita series
  Greenleaf manzanita series
  Ione manzanita series
  Whiteleaf manzanita series
  Woollyleaf manzanita series
3' A manzanita not dominant 4

    4 Bush chinquapin dominant

Bush chinquapin series

    4' An oak dominant

oak chaparrals
  Brewer oak series
  Huckleberry oak series
  Leather oak series
  Scrub oak series
  Sadler oak series
  Canyon live oak shrub series
  Interior live oak shrub series
Key to chaparrals where two species are similarly important
1 A Salvia important Chamise-black sage series
  Chamise-white sage series
1' A sage not important 2

    2 Chamise important

chamise chaparrals
  Chamise-bigberry manzanita series
  Chamise-back sage series
  Chamise-cupleaf ceanothus series
  Chamise-Eastwood manzanita series
  Chamise-hoaryleaf ceanothus series
  Chamise-wedgeleaf ceanothus series
  Chamise-white sage series
  Chamise-woollyleaf ceanothus series
  Leather oak series
  Mixed oak series
  Red shank-chamise series
  Scrub oak-chamise series
  Sumac series

    2' Chamise not important

3
3 An live oak important live oak chaparrals
  Interior live oak shrub series
  Interior live oak-canyon live oak shrub series
  Interior live oak-chaparral whitethorn shrub series
  Leather oak series
  Mixed scrub oak series
  Scrub oak series
  Scrub oak - birchleaf mountain-mahogany series
  Scrub oak-chamise series
  Scrub oak-chaparral whitethorn series
3' An live oak not important 4

    4 Bigpod ceanothus important

mixed chaparrals
  Bigpod ceanothus - birchleaf mountain-mahogany series
  Bigpod ceanothus-hollyleaf redberry series

    4' Birchleaf mountain-mahogany important

5
5 Red shank important Red shank - birchleaf mountain-mahogany series
5' Red shank not important 6

    6 Birchleaf mountain-mahogany important

Birchleaf mountain-mahogany - California buckwheat series

     6' Woollyleaf manzanita important

 Woollyleaf manzanita series
Key to chaparrals where more than two species are similarly important
1 Chamise important Chamise - mission-manzanita - woollyleaf ceanothus series
1' Chamise not important 2

    2 Cupleaf ceanothus and fremontia important

Cupleaf ceanothus-fremontia-oak series

    2' Scrub oak important

Mixed scrub oak series

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