Alaska Arctic Tundra Vegetation Map

Bioclimate Subzone E

Alaska Arctic Tundra Vegetation Map-Bioclimate subzone E

Introduction - Subzone C - Subzone D - Subzone E

The subzone description below lists Alaska plant communities along a toposequence on acidic and non-acidic substrates; in subzones C, D and E; in the three floristic provinces of Northern Alaska (Northern Alaska, floristic province), Beringian Alaska (Beringian Alaska, floristic province) and Northern Beringian Islands (Northern Beringian Island, floristic province). Blocks of rows are positions along a mesotopographic gradient (see Mesotopographic gradient). Dominant plant functional types and species are listed where data were available. Literature citations (in small font) include unit names, habitat, citation and location.

See the Circumpolar Arctic Vegetation Map Subzone E for a complete subzone description.

Subzone E (Arctic Foothills, Seward Peninsula, and southwestern Alaska)

Floristic provinces:

Habitat along the meso-topographic gradient Acidic substrates
(community # 35-70)
Non-acidic substrates
(community # 71-85)
Dry exposed sites 35.

Vaccinio uliginosi-Salicetum phlebophyllae Assoc. 43, prostrate vegetation of ridgetops on acidic soils (Cooper 1986) (Arrigetch Mtns.).


Prostrate dwarf shrub: Vaccinium uliginosum, Salix phlebophylla, Loiseleuria procumbens, Vaccinium vitis-idaea, Dryas octopetala;
Graminoid: Hierochloe alpina, Carex microchaeta; Forb: Androsace chamaejasme;
Moss: Rhacomitrium lanuginosum

71.

Selaginello sibiricae-Dryadetum octopetalae, dry gravelly soils (Walker et al. 1994) (Toolik Lake).


Prostate dwarf shrub: Dryas octopetala, Dryas drummondii;
Forb: Antennaria alpina, Minuartia obtusiloba, Oxytropis nigrescens, Smelowskia calycina, Artemisia arctica;
Lichen Alectoria nigrescens, Bryocaulon divergens, Hypogymnia subobscura, Ochrolechia upsaliensis;
Moss Polytrichum piliferum, Tortula ruralis

36.

Carici scirpoideae-Vaccinietum uliginosi, Assoc. 18 (Cooper 1986) (Arrigetch Mtns.)


Prostrate dwarf shrub: Dryas octopetala, Vaccinium uliginosum;
Graminoid: Carex scirpoidea, Carex microchaeta, Festuca altaica; Lichen: Cladina spp., Flavocetraria spp.

72.

Caricetum scirpoideo-rupestris, Assoc.30, limestone slopes (Cooper 1986) (Arrigetch Mtns.).


Prostrate dwarf shrub: Dryas octopetala, Saxifraga oppositifolia;
Sedge: Carex scirpoidea, Carex rupestris;
Lichen: Thamnolia subuliformis, Dactylina beringica, Vulpicida tilesii, Flavocetraria nivalis, Flavocetraria cucullata, Cetraria islandica;
Moss: Ditrichum flexicaule

37.

Selaginello sibiricae-Dryadetum octopetalae, dry gravelly soils (Walker et al. 1994) (Imnavait Creek).


Prostate dwarf shrub: Dryas octopetala, Dryas drummondii;
Forb: Antennaria alpina, Minuartia obtusiloba, Oxytropis nigrescens, Artemisia arctica;
Lichen: Alectoria nigrescens, Bryocaulon divergens, Hypogymnia subobscura, Ochrolechia upsaliensis;
Moss: Polytrichum piliferum, Tortula ruralis

73.

Alpine Dryas stand ; Map units 61 lichen meadow, mountain (Hanson 1953), 71 Dryas limestone slope, and 72 bald limestone slope (Swanson and Schuman 1985); Vegetation type Dryas dwarf-shrub tundra (Racine and Anderson 1979); Releves C5, C17, C-H (Raynolds et al. 2002) (Seward Peninsula).


Prostrate dwarf shrub: Dryas octopetala, Rhododendron camtschaticum;
Sedge: Carex nardina;
Forb: Artemisia senjavinensis, Artemisia globularia, Saxifraga oppositifolia, Oxytropis nigrescens, Packera cymbalaria, Smelowskia calycina, Minuartia arctica, Phlox sibirica, Potentilla biflora, Potentilla uniflora, Stellaria dicranoides;
Lichen: Thamnolia subuliformis, Cetraria islandica

38.

Salici phlebophyllae-Arctoetum alpinae, dry acidic organic soils (Walker et al. 1994) (Imnavait Creek).


Prostrate dwarf shrub: Arctous alpina, Vaccinium vitis-idaea, V. uliginosum, Salix phlebophylla;
Grass: Hierochloe alpina;
Lichen: Flavocetraria cucullata, Sphaerophorus globosus, Alectoria ochroleuca, Cladina arbuscula;
Moss: Polytrichum strictum, Dicranum elongatum

74.

Rock desert, Lava A,B,C (Raynolds et al. 2002) (Seward Peninsula).


Lichen: Umbilicaria spp., Rhizocarpon geographicum, Cladonia stellaris;
Dwarf shrub: Loiseluria procumbens

39.

Map units 65 lichen slope and 70 lichen granitic slope (Swanson and Schuman 1985); Vegetation type dwarf-shrub tundra (Racine and Anderson 1979); Releves C13, QC35, QC36 (Raynolds et al. 2002) (Seward Peninsula).


Prostrate dwarf shrub: Loiseleuria procumbens, Arctous alpina, Empetrum nigrum, Rhododendron camtschaticum, Salix phlebophylla;
Lichen: Bryocaulon divergens, Pseudephebe pubescens, Cladina spp., Thamnolia spp.

 
40.

Sites V1,4,5 (Talbot et al. 1985); Map unit 4 ; description of Askinuk Mtns.(McCaffery and Harwood 1997); Map Units D1a, M11 (Tande and Jennings 1986), lowland moist low scrub (Jorgenson 2000) (Yukon-Kuskokwim Delta).


Prostrate and erect dwarf shrub: Dryas integrifolia, Empetrum nigrum;
Lichen: Cladina rangiferina, Cladina spp., Alectoria ochroleuca

 
Moist sites 41.

Northern Beringian Islands: Sphagno-Eriophoretum vaginati, tussock tundra on acidic fine grained soils (Walker et al. 1994) (Imnavait Creek).

Beringian Alaska: Cottongrass-sedge-dwarf heath shrub complex (Hanson 1953); Tussock dwarf-shrub tundra (Racine and Anderson 1979); 42B- low shrub cottongrass tussock tundra, 60 - lichen tussock tundra (Swanson and Schuman 1985); C2,C8,C19,QC1, QC2,QC45  (Raynolds et al. 2002) (Seward Peninsula).

Map Units M11, M14 (Tande and Jennings 1986); Map Unit 71 - lowland moist low-scrub (Jorgenson 2000); Sites BB10-13, MM5,7 (Talbot 1983) (Yukon-Kuskokwim Delta).


Tussock sedge: Eriophorum vaginatum, Carex bigelowii;
Erect dwarf shrub: Betula nana, Ledum decumbens, Vaccinium vitis-idaea, Empetrum hermaphroditum, Cassiope tetragona, Rubus chamaemorus;
Forb: Pyrola grandiflora, Bistorta plumosa, Saxifraga nelsoniana;
Moss: Sphagnum spp., Hylocomium splendens, Aulacomnium turgidum, Dicranum spp., Polytrichum strictum;
Lichen: Cladina spp., Cladonia amaurocraea, Cetraria spp., Dactylina arctica

75.

Northern Beringian Islands: Dryado integrifoliae-Caricetum bigelowii, moist calcareous tundra (Walker et al. 1994) (Toolik Lake).

Beringian Alaska: Vegetation type Bigelow's sedge tussock dwarf-shrub tundra (Racine and Anderson 1979); Releves R6,7a,33,37,57,58 (Raynolds et al. 2002) (Seward Peninsula).


Sedges: Carex bigelowii, Eriophorum angustifolium ssp. triste, Carex membranacea, E. vaginatum;
Prostrate dwarf shrub: Dryas integrifolia, Salix reticulata, Arctous rubra;
Erect dwarf shrub: Salix richardsonii, S. glauca, Vaccinium uliginosum, Rhododendrum lapponicum;
Forb: Lupinus arcticus, Oxytropis maydelliana, Pedicularis capitata, Lagotis glauca, Eutrema edwardsii, Tephroseris frigida, Bistorta vivipara, Packera cymbalaria, Pedicularis lanata, Tofieldia pusilla;
Horsetail: Equisetum arvense, Equisetum variegatum;
Moss: Tomentypnum nitens, Hylocomium splendens, Aulacomnium turgidum;
Lichen: Thamnolia subuliformis, Flavocetraria spp., Dactylina arctica

41 (cont).

Cottongrass-sedge-dwarf heath shrub complex (Hanson 1953); Tussock dwarf-shrub tundra (Racine and Anderson 1979); 42B- low shrub cottongrass tussock tundra, 60 - lichen tussock tundra (Swanson and Schuman 1985); C2,C8,C19,QC1, QC2,QC45  (Raynolds et al. 2002) (Seward Peninsula).

Map Units M11, M14 (Tande and Jennings 1986); Map Unit 71 - lowland moist low-scrub (Jorgenson 2000); Sites BB10-13, MM5,7 (Talbot 1983) (Yukon-Kuskokwim Delta).

75 (cont).

Vegetation type Bigelow's sedge tussock dwarf-shrub tundra (Racine and Anderson 1979); Releves R6,7a,33,37,57,58 (Raynolds et al. 2002) (Seward Peninsula).

42.

Sphagno-Eriophoretum vaginati, Betula nana and Salix pulchra subtypes, shrub-dominated tussock tundra (Walker and Walker 1996) (Imnavait Creek).


Erect dwarf shrub: Betula nana, Salix pulchra, Ledum decumbens, Vaccinium vitis-idaea;
Tussock sedge: Eriophorum vaginatum;
Moss: Sphagnum spp., Hylocomium splendens, Aulacomnium turgidum, Dicranum spp.;
Lichen: Cladina spp., Cladonia amaurocraea, Cetraria spp., Peltigera aphthosa

76.

44-shrub lichen upland (Swanson and Schuman 1985); Releve C-C (Raynolds et al. 2002) (Seward Peninsula).


Low shrub: Betula nana, Salix pulchra, Salix glauca;
Moss: Pleurozium schreberi, Hylocomium splendens

43.

Sphagno-Eriophoretum vaginati betuletosum nanae, dwarf shrub on palsas and high-centered polygons (Walker et al. 1994) (Imnavait Creek).


Erect dwarf shrub: Betula nana, Ledum decumbens;
Prostrate dwarf-shrub: Rubus chamaemorus, Vaccinium vitis-idaea;
Moss: Sphagnum spp.

 
44.

Northern Beringian Islands: Sphagno-Eriophoretum vaginati betuletosum nanae, shrub tundra in warmer mesoclimatic oases along water tracks and in basins (Walker et al. 1994) (Imnavait Creek).

Beringian Alaska: Vegetation Type low-medium shrub thicket (Racine and Anderson 1979); shrub hillside, Map Unit 35 (Swanson and Schuman 1985) Releves C3, C16, QC3, C-C (Raynolds et al. 2002) (Seward Peninsula).

Map unit 9 (Talbot et al. 1985) Map Unit M13 (Tande and Jennings 1986) (Yukon-Kuskokwim Delta).


Low shrub: Betula nana, Salix pulchra;
Erect dwarf-shrub: Ledum decumbens, Rubus chamaemorus;
Grass: Calamagrostis canadensis;
Moss: Aulacomnium turgidum, Hylocomium splendens

44 (cont).

Vegetation Type low-medium shrub thicket (Racine and Anderson 1979); shrub hillside, Map Unit 35 (Swanson and Schuman 1985) Releves C3, C16, QC3, C-C (Raynolds et al. 2002) (Seward Peninsula).

Map unit 9 (Talbot et al. 1985) Map Unit M13 (Tande and Jennings 1986) (Yukon-Kuskokwim Delta).

45.

Climacium dendroides-Alnus viridis comm., open alder shrub in warmer mesoclimatic oases of the foothills (Walker et al. 1997) (Happy Valley).


Low shrub: Alnus viridis ssp. fruticosa, Salix richardsonii, Spiraea stevenii;
Erect dwarf shrub: Vaccinium uliginosum, V. vitis-idaea, Pyrola grandiflora;
Grass: Calamagrostis canadensis;
Horsetail: Equisetum arvense;
Forb: Boschniakia rossica, Valeriana capitata;
Moss: Climacium dendroides, Hylocomium splendens, Thuidium philibertii, Timmia austriaca

46.

Resprouting tussocks with colonizing liverworts and mosses on burned tussock tundra (Racine 1987) (Seward Peninsula).


Tussock sedge: Eriophorum vaginatum;
Grass: Calamagrostis canadensis, Arctagrostis latifolia;
Forb: Epilobium latifolium, Tephroseris congesta;
Bryophyte: Marchantia polymorpha, Ceratodon purpureus

47.

Map Unit 60 lichen tussock tundra (Swanson and Schuman 1985) (Seward Peninsula).


Sedge: Eriophorum vaginatum;
Erect dwarf shrub: Ledum decumbens, Vaccinium vitis-idaea, Rubus chamaemorus;
Lichen: Cladina rangiferina, Cladina mitis, Cladina arbuscula, Flavocetraria cucullata, Cetraria islandica;
Moss: Sphagnum spp.

48.

Vegetation type dwarf birch-heath-lichens (Hanson 1953); Vegetation type birch dwarf-shrub tundra (Racine and Anderson 1979); Map Unit 32- mixed shrub tundra,44 - shrub lichen upland (Swanson and Schuman 1985); Releve C14 (Raynolds et al. 2002) (Seward Peninsula).

Map Unit M11(Tande and Jennings 1986); Map Unit 71, lowland moist low scrub (Jorgenson 2000) (Yukon-Kuskokwim Delta).


Erect dwarf shrub: Betula nana, Ledum decumbens, Empetrum nigrum, Loiseleuria procumbens, Vaccinium uliginosum;
Lichen: Cladina rangiferina, Cladina stygia, Stereocaulon tomentosum;
Moss: Sphagnum spp., Dicranum spp.

49.

Site 63, 32 (Swanson et al. 1986) (Nunivak Island).


Erect and prostrate dwarf shrub: Betula nana, Salix fuscescens, Empetrum nigrum, Vaccinium vitis-idaea;
Sedge: Carex bigelowii;
Lichen: Cladina rangiferina, Cladina arbuscula, Cetraria islandica

50.

Map Units 1,3 (Talbot et al. 1985); Map Unit M12 (Tande and Jennings 1986); Map Unit L3 (Wibbenmeyer et al. 1982) (Kuskokwim Mtns.).


Low shrub: Betula nana;
Sedge: Eriophorum vaginatum;
Dwarf shrub: Ledum decumbens, Rubus chamaemorus, Vaccinium uliginosum, V. vitis-idaea, Empetrum nigrum;
Moss: Sphagnum spp.;
Lichen: Cladina spp., Cetraria spp.

51.

Alder types; green alder shrub thicket (Hanson 1953); Map Unit 22 -tall shrub hillside (Racine and Anderson 1979); Releves C15,C18,QC25 (Raynolds et al. 2002) (Seward Peninsula).

Map Unit 8, subalpine scrub (Talbot et al. 1985); Map Units D2,D5,F1,F2 (Wibbenmeyer et al. 1982) (Yukon-Kuskokwim Delta).


Low shrub: Alnus viridis ssp. fruticosa, Spiraea stevenii;
Grass: Calamagrostis canadensis;
Fern: Dryopteris expansa

Wet sites 52.

Sphagnum orientale-Eriophorum scheuchzeri comm., wet microsites in wet acidic tundra in foothills (Walker and Walker 1996) (Imanavait Creek).


Sedge: Carex rotundata, Carex rariflora, Carex chordorrhiza, Eriophorum scheuchzeri;
Moss: Sphagnum orientale

77.

Eriophorum angustifolium-Carex aquatilis comm., nonacidic marshes (Walker and Barry 1991) (Toolik Lake).


Sedge: Carex aquatilis, Carex chordorrhiza Carex spp., Eriophorum angustifolium spp.;
Moss: Drepanocladus brevifolius, Scorpidium scorpioides, Cinclidium latifolium, Meesia triquetra, Catascopium nigritum, Distichium capillaceum

53.

Sphagnum lenense-Salix fuscescens comm., raised microsites in acidic wetlands (Walker and Walker 1996) (Imnavait Creek).


Sedge: Carex rotundata, Carex rariflora;
Prostrate dwarf shrub: Salix fuscescens, Andromeda polifolia, Rubus chamaemorus, Betula nana;
Moss: Sphagnum lenense, Sphagnum spp.

78.

Salt grass meadow (Racine and Anderson 1979); 51- tidal marsh (Swanson and Schuman 1985) (Seward Peninsula).

Map Unit 14 (Talbot et al. 1985), Map Unit M15 (Tande and Jennings 1986; Map Unit 13 (Jorgenson 2000) (Yukon-Kuskokwim Delta).


Graminoid: Puccinellia phryganodes, Carex ramenskii

54.

Map Unit 55- cottongrass-water sedge (low-centered polygons) (Swanson and Schuman 1985) (Seward Peninsula).


Sedge: Carex aquatilis, Eriophorum scheuchzeri;
Erect dwarf shrub: Ledum palustre ssp. decumbens;
Moss: Sphagnum spp.;
Lichen: Cladina spp., Cladonia spp.

 
55.

Map Units W1, W8, W9, M9 (Tande and Jennings 1986); Map Unit 24 slightly brackish wet sedge-shrub meadow (Jorgenson 2000) (Yukon-Kuskowkim Delta).


Sedge: Carex ramenskii, Carex rariflora, Carex lyngbyaei;
Prostrate dwarf shrub: Salix fuscescens;
Forb: Comarum palustre

56.

Map Unit W10 (Tande and Jennings 1986) (Yukon-Kuskowkim Delta).


Graminoid: Carex aquatilis, Carex rariflora, Calamagrostis deschamsioides;
Hemiprostrate dwarf shrub: Empetrum nigrum;
Moss: Sphagnum spp.

57.

Sites F1,H2,M2B (Talbot 1983); Map Unit 61 - lowland wet sedge meadow (Jorgenson 2000) ; Map Unit W2e,W3e (Tande and Jennings 1986); Map Units 5,18,22 (Talbot et al. 1985) (Yukon-Kuskokwim Delta).


Sedge: Carex aquatilis, Eriophorum angustifolium spp., Carex rostrata;
Forb: Comarum palustre, Menyanthes trifoliata;
Moss: Sphagnum spp.

58.

Map Unit 21, 16 (Talbot et al. 1985); Map Unit W3 (Tande and Jennings 1986) (Yukon-Kuskokwim Delta).


Sedge: Eriophorum russeolum, Carex aquatilis;
Forb: Comarum palustre;
Moss: Sphagnum spp.

59.

Map Unit 5, 22 (Talbot et al. 1985); Map Unit W3e, W4 (Tande and Jennings 1986) (Yukon-Kuskokwim Delta).


Sedge: Carex aquatilis;
Erect dwarf shrub: Betula nana, Empetrum nigrum, Ledum palustre ssp. decumbens, Vaccinium uliginosum;
Moss: Sphagnum spp.;
Lichen: Cladina spp., Flavocetraria spp.

60.

Map Unit 23 (Talbot et al. 1985) (Yukon-Kuskokwim Delta).


Erect dwarf shrub: Andromeda polifolia;
Moss: Sphagnum balticum

61.

Type 52 (Swanson et al. 1986) (Nunivak Island).


Sedge: Carex aquatilis, Carex glareosa;
Prostrate dwarf shrub: Salix fuscescens;
Moss: Sphagnum spp.

Snow beds 62.

Carex microchaeta-Cassiope tetragona comm., early-melting acidic snowbeds (Walker et al. 1994) (Imnavait Creek).


Hemiprostrate dwarf shrub: Cassiope tetragona;
Prostrate dwarf shrub: Salix phlebophylla, Vaccinium vitis-idaea, Pyrola grandiflora, Diapensia lapponica, Ledum decumbens, Vaccinium uliginosum;
Sedge: Carex microchaeta;
Grass: Hierochloe alpina;
Moss: Hylocomium splendens, Aulacomnium turgidum, Dicranum spp.;
Lichen: Flavocetraria cucullata, Flavocetraria nivalis, Nephroma arcticum, Stereocaulon alpinum, Sphaerophorus globosus

79.

Dryas integrifolia-Cassiope tetragona comm., early-melting nonacidic snow beds (Walker et al. 1994) (Toolik Lake).


Hemiprostrate dwarf shrub: Cassiope tetragona; Prostrate dwarf shrub: Dryas integrifolia, Salix reticulata, S. arctica;
Sedge: Carex scirpoidea;
Forb: Geum glaciale, Pedicularis lanata, Pedicularis oederi, Parrya nudicaulis, Papaver macounii spp. discolor, Silene acaulis, Bistorta plumosa;
Moss: Rhytidium rugosum, Aulacomnium turgidum, Tomentypnum nitens, Ptilidium ciliare;
Lichen: Flavocetraria cucullata, Flavocetraria nivalis, Cladonia amaurocraea, Dactylina arctica

63.

Salix rotundifolia-Saxifraga nivalis comm., late-melting snow beds (Walker et al. 1989) (Imnavait Creek).


Prostrate dwarf shrub: Salix rotundifolia

80.

Salix rotundifolia-Saxifraga nivalis comm., late-melting snow beds (Walker et al. 1989) (Toolik Lake).


Prostrate dwarf shrub: Salix rotundifolia;
Sedge: Carex aquatilis, Eriophorum angustifolium ssp. triste;
Horsetail: Equisetum scirpoides, Equisetum variegatum;
Moss: Distichium capillaceum, Ditrichum flexicaule

64.

Four-angled heather-blueberry type (Hanson 1953); Releve 2000-CC (Raynolds et al. 2002) (Seward Peninsula).


Hemiprostrate dwarf shrub: Cassiope tetragona, Loiseleuria procumbens, Vaccinium uliginosum;
Forb;
Lichen: Alectoria nigricans, Sphaerophorus globosus

81.

Early-melting snowbeds, Releve 2000-C-D (Raynolds et al. 2002) (Seward Peninsula).


Dwarf shrub: Salix reticulata, S. richardsonii;
Horsetail: Equisetum arvense;
Moss: Tomentypnum nitens

Riparian areas 65.

Valeriano-Salicetum planifoliae ass. nov. (Schickhoff et al. 2002); Eriophorum angustifolium-Salix pulchra comm., acidic to circumneutral water tracks, streamsides (Walker et al. 1994) (Imnavait Creek).


Low shrub: Salix pulchra, Betula nana;
Erect dwarf shrub;
Sedge: Eriophorum angustifolium spp., Carex membranacea;
Forb: Valeriana capitata, Anemone richardsonii, Polemonium acutiflorum, Dodecatheon frigidum;
Moss: Hylocomium splendens, Tomentypnum nitens, Sphagnum spp., Sanionia uncinatus, Aulacomnium palustre, Paludella squarrosa

82.

Epilobio latifolii-Salicetum alaxensis ass., active floodplains (Schickhoff et al. 2002) (Toolik Lake).


Forb: Castilleja caudata, Epilobium latifolium, Hedysarum alpinum, Eurybia sibirica;
Low shrub: Salix alaxensis

66.

Salicetum glauco-richardsonii ass. prov., willow shrublands on stable floodplains (Schickhoff et al. 2002) (Imnavait Creek).


Tall shrub: Salix alaxensis, S. richardsonii, S. glauca;
Prostrate shrub: Dryas integrifolia, Arctous rubra;
Forb: Hedysarum alpinum, Tofieldia pusilla, Parnassia kotzebuei;
Horsetail: Equisetum arvense;
Moss: Ditrichum flexicaule, Tomentypnum nitens, Distichium capillaceum

83.

Dryas integrifolia-Lupinus arcticus comm., dry river terraces (Walker et al. 1997) (Toolik Lake); Dryas terrace comm. (J.C. Jorgenson, 2005 pers. com.) (Arctic NWR).


Prostrate dwarf shrub: Dryas integrifolia, Arctous rubra, Salix reticulata;
Erect dwarf shrub: Salix richardsonii, Vaccinium uliginosum, Rhododendron lapponicum;
Forb: Anemone parviflora, Bistorta vivipara, Castilleja caudata, Lupinus arcticus, Oxytropis campestris, Oxytropis borealis, Pedicularis capitata;
Sedge: Carex scirpoidea, C. rupestris; Horsetail: Equisetum variegatum;
Moss: Rhytidium rugosum, Hylocomium splendens, Tomentypnum nitens;
Lichen: Flavocetraria cucullata, Flavocetraria nivalis, Cladonia pocillum, Dactylina arctica, Masonhalea richardsonii, Peltigera canina, Thamnolia subuliformis

67.

Climaceum dendroides-Alnus viridis comm., alder shrublands floodplains (Walker et al. 1997) (Happy Valley).


Tall shrub: Alnus viridis ssp. fruticosa, Salix richardsonii;
Erect dwarf shrub: Vaccinium uliginosum, V. vitis-idaea, Pyrola grandiflora;
Grass: Calamagrostis canadensis;
Horsetail: Equisetum arvense;
Forb: Boschniakia rossica, Valeriana capitata;
Moss: Climacium dendroides, Hylocomium splendens, Thuidium philibertii, Timmia austriaca

84.

Salicetum glauco-richardsonii ass. prov., willow shrubland on stable floodplains (Schickhoff et al. 2002) (Toolik Lake).


Tall shrub: Salix alaxensis, S. richardsonii, S. glauca;
Prostrate shrub: Dryas integrifolia, Arctous rubra;
Forb: Hedysarum alpinum, Tofieldia pusilla, Parnassia kotzebuei;
Horsetail: Equisetum arvense;
Moss: Ditrichum flexicaule, Tomentypnum nitens, Distichium capillaceum

68.

Map unit 34-low shrub - floodplain (Swanson and Schuman 1985) (Seward Peninsula).


Low shrub: Salix pulchra;
Moss: Hylocomium splendens;
Lichen: Cetraria islandica, Cladina spp.

85.

Climaceum dendroides-Alnus viridis comm., alder shrubland on floodplains (Walker et al. 1997) (Happy Valley).


Tall shrub: Alnus viridis ssp. fruticosa, Salix richardsonii;
Erect dwarf shrub: Vaccinium uliginosum, V. vitis-idaea, Pyrola grandiflora;
Grass: Calamagrostis canadensis;
Horsetail: Equisetum arvense;
Forb: Boschniakia rossica, Valeriana capitata;
Moss: Climacium dendroides, Hylocomium splendens, Thuidium philibertii, Timmia austriaca

69.

Vegetation type tall willow thicket (Racine and Anderson 1979); Map unit 82 - riverwash (Swanson and Schuman 1985) (Seward Peninsula).


Low or tall shrub: Salix alaxensis, S. richardsonii;
Forb: Epilobium latifolium;
Moss: Sphagnum spp.;
Lichen: Thamnolia subuliformis

 
70.

Map unit W2e (Tande and Jennings 1986); Site G5, 9, 12, 14; MM6, 005, V3 (Talbot 1983) (Yukon-Kuskokwim Delta).


Tall shrub: Salix arbusculoides, S. alaxensis, Alnus viridis ssp. fruticosa;
Low shrub: Salix pulchra;
Grass: Calamagrostis canadensis;
Moss: Climacium dendroides

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