A Phytogeographical Classification of the North American Pacific Coast Based on Climate, Vegetation and a Floristic Analysis of Vascular Plants

Table 2

Classification results: Presence percentages (rounded) of the most frequent taxa differentiating 21 clusterings obtained from ALC. Abbreviations as in Figure 3.

Cluster subgroups	BOR-1	BOR-2	TEM-1	TEM-2	TEM-3	TEM-4	TEM-5	TEM-6	ZEC-1	MED-1	MED-2	MED-3	MED-4	MED-5	MED-6	MED-7	ZEC-2	TRO-1	TRO-2	TRO-3	TRO-4
Number of taxa	68	73	91	136	32	80	81	74	82	50	125	68	23	120	147	98	117	135	58	78	111
Number of sites	11	12	12	19	6	9	16	17	4	12	19	9	5	8	11	9	14	27	17	18	24
Average taxa/sites	29	26	21	37	12	18	11	6	35	14	23	18	8	34	21	29	29	22	16	26	17
Boreal
Betula papyrifera var. kenaica	100	75
Puccinellia hultenii	55	67
Senecio pseudoarnica	55	67
Conioselinum gmelinii	64	67
Ligusticum scoticum subsp. hultenii	55	50
Stellaria humifusa	55	50
Poa eminens	64	42
Lathyrus palustris	55	42
Equisetum sylvaticum	100	17
Viburnum edule	100	8
Empetrum nigrum	100
Geocaulon lividum	100
Linnaea borealis subsp. americana	100
Picea glauca	100
Rosa acicularis subsp. acicularis	100
Shepherdia canadensis	100
Vaccinium uliginosum	100
Dendranthema arcticum subsp. arcticum	55
Atriplex alaskensis	36
Athyrium filix-femina subsp. cyclosurum		83
Lycopodium annotinum		83
Menziesia ferruginea		83
Oplopanax horridum		83
Orthilia secunda		83
Sorbus sitchensis		83
Tiarella trifoliata		83
Vaccinium membranaceum		83
Mertensia maritima		58
Boreo-temperate
Carex lyngbyei	91	83	67	42	0	67	13	12	25
Picea sitchensis		92	67	84	83	78	75		25
Deschampsia cespitosa subsp. beringensis	36	33	83	42		56	13		25
Festuca rubra subsp. rubra	55	50	17	63		22		6	25
Hordeum brachyantherum subsp. brachyantherum	64	58	25	16	17		6
Lathyrus japonicus var. maritimus	55	67	50	95	67	11		29
Honkenya peploides subsp. major	45	67	8	26		11		29
Plantago maritima var. juncoides	73	67	83	32		11
Temperate
Gaultheria shallon			50	79	100	67	50	18
Vaccinium ovatum			42	74	100	44	44
Sarcocornia perennis			100	32		11		18	50
Cakile edentula subsp. edentula var. edentula			8	68	33	11		12
Arctostaphylos uva-ursi			8	42	50	33	13
Anaphalis margaritacea			25	37	83	11
Glaux maritima			67	26			6
Cytisus scoparius				53	50		19
Tsuga heterophylla			8	5			44
Hypochaeris radicata				89		22
Lupinus littoralis				74	17
Poa confinis				42
Temperate-northern Mediterranean
Baccharis pilularis				21		11		18	100	8	58	67		88	27
Ammophila arenaria				89	50	44		18	100	8	63			38	18
Polystichum munitum			17	42	17	22	63	6	50			11
Salix hookeriana			33	74	17	78		6	50		11
Lonicera involucrata var. involucrata			33	58	50	78	13	12	50
Pinus contorta var. contorta			17	74	67	44	6		25		5
Carex obnupta			17	89		44		6	50		16			13
Alnus rubra			17	16		22	38	12	50
Tanacetum camphoratum			8	53	17	11			75		5
Juncus falcatus				74		22			50		11			13
Spiranthes romanzoffiana				32		22			50
Veronica scutellata				42		22			25
Cardionema ramosissimum				58					50		11
Phacelia argentea								6	50			11
Armeria maritima subsp. californica				26				6	75		32	33		13
Polygonum paronychia				53				6	75		37			13
Myrica californica			33	58	67	44								75	18
Calystegia soldanella						11			100	17	16		60	13
Carex pansa				42	17	11			50			22		63
Northern Mediterranean
Camissonia cheiranthifolia subsp. cheiranthifolia									100	8	58	22	100	38
Artemisia pycnocephala						11			100	8	58	33		13
Erigeron glaucus								6	50		58	89		25
Salix lasiolepis									25		5	11	40	100
Eriogonum latifolium								6	75		68	22		13
Ericameria ericoides						11				8	32	11		75
Eriophyllum stoechadifolium								12			74	89		63
Lupinus arboreus									25		16	11		38
Eriogonum parvifolium											11	89		75
Corethrogyne californica var. californica											11	67		88
Grindelia hirsutula var. maritima								6			11	44
Toxicodendron diversilobum								6				33		63	9
Southern Mediterranean
Lotus scoparius var. scoparius														50	36	78	7
Nassella lepida														25	9	78	7
Dudleya lanceolata														13	18	89	29
Lupinus chamissonis													20	63
Erigeron blochmaniae														50
Senecio blochmaniae														63
Dudleya caespitosa														50	9
Conicosia pugioniformis														50
Viguiera laciniata															18	78	14
Agave shawii subsp. shawii															55	100	14
Opuntia littoralis															45	44	14
Rhus integrifolia															64	78	14
Encelia californica var. californica															27	56	21
Mirabilis californica															9	44	43
Rosa minutifolia															9	56	21
Bergerocactus emoryi															36	100	21
Amblyopappus pusillus																22	79
Cneoridium dumosum															36	44
Eriogonum fasciculatum var. fasciculatum															36	78
Malosma laurina															18	44
Acalypha californica															18	44
Achnatherum diegoense																44
Dudleya campanulata																44
Dudleya cultrata																	86
Mediterranean-Tropical
Sarcocornia pacifica										100	42		20	25	9		21	26	47		4
Spartina foliosa								6	50	75	32			25	18		21	19	35
Frankenia salina								6		92	16			25	18		21	19
Suaeda esteroa										58				13	18		21	19	6
Arthrocnemum subterminale										58					18		21	19	41		13
Batis maritima										50					18		21	26	88		25
Monanthochloe littoralis										58					18		43	26	41		25
Limonium californicum									50	58	16			25			7
Southern Mediterranean-Tropical
Abronia maritima													40	25	18	11	64	44	12	22	50
Stenocereus gummosus															9	44	43	11	12	33	13
Croton californicus														50	9		7	4		56	17
Mammillaria dioica															18	89	50	7	6
Simmondsia chinensis															18	89	21			33
Isocoma menziesii var. vernonioides															18		57	4
Lycium brevipes															27	11	93	48
Euphorbia misera															9	78	71	56
Dudleya attenuata subsp. orcuttii															18	44	7	4
Isocoma menziesii var. menziesii															18	11	64	4	6
Helianthus niveus subsp. niveus															9	11	93	7
Echinocereus maritimus															18	44	21	4
Ambrosia chenopodiifolia															9	44	21	11
Opuntia prolifera															9	67	21	7
Mesembryanthemum crystallinum															18	11	100	44
Atriplex canescens var. canescens															18	11	50	41
Atriplex julacea																11	79	89	6
Frankenia palmeri																11	50	100	6
Lycium andersonii																22		7	47		4
Camissonia cheiranthifolia subsp. suffruticosa															18		43	4
Suaeda taxifolia																	43	37			13
Camissonia crassifolia																	29	70
Astragalus anemophilus																	50	4
Tropical
Ambrosia ambrosioides																		67	88	72	100
Cenchrus palmeri																		30	88	67	96
Hymenoclea pentalepis																		67	88	78	100
Allenrolfea occidentalis																		74	88	11	33
Hyptis emoryi																		67	88	17	92
Fouquieria diguetii																		37	35		4
Atriplex magdalenae																		7			33
Encelia ventorum																		59
Chaenactis lacera																		33
Dyssodia anthemidifolia																		22
Sphaeralcea fulva																		26
Thermotropical
Maytenus phyllanthoides																			88	78	63
Opuntia cholla																			18	61	8
Bursera microphylla																			29	11	8
Sporobolus virginicus																			12	89	29
Ipomoea pes-caprae																			6	94	4
Sesuvium verrucosum																			41	11	13
Laguncularia racemosa																			100		4
Rhizophora mangle																			100		8
Avicennia germinans																			100		13
Sanlucan
Oenothera drummondii var. thalassaphila																				94	4
Setaria palmeri																				94	100
Cyrtocarpa edulis																				78	25
Euphorbia leucophylla																				100	29
Jouvea pilosa																				100	33
Lycium fremontii var. congestum																				50	33
Proboscidea althaefolia																				94	25
Antigonon leptopus																				61	4
Asclepias subulata																				72	4
Froelichia interrupta																				72	4
Jatropha cordata																				44	4
Portulaca pilosa																				56	4
Drymaria holosteoides var. crassifolia																				39	4
Bursera cerasifolia																				28	4
Dalea divaricata subsp. anthonyi																				83
Cardiospermum corindum																				33
Castela peninsularis																				33
Porophyllum porphyreum																				39
Physalis glabra																				39
Scaevola plumieri																				39
Widespread taxa
Distichlis spicata			92	32		11		6	50	75	37	33	20	50	18		50	7
Cakile maritima				53	17	11		18	50	25	74	22	80	25	27	11	21
Ambrosia chamissonis			8	5		11		6	75	17	74	44	80	88	9	11	14
Argentina egedii subsp. egedii	91	67	50	89		89			25	8			20	25	9
Leymus mollis subsp. mollis	91	92	58	74	83	22		41	25		42			13	9
Achillea millefolium	73	33	25	47				12	75		74	67		88	9
Cuscuta salina			42	21		11			50	75			20		18		14	4
Fragaria chiloensis subsp. pacifica			25	84		22		6	75		42			38	18
Abronia latifolia				11		11		6	50	8	63		60	38
Triglochin maritimum	64	33	83	47		44			50	42
Juncus lesueurii				89	17	22			100		26		20	50
Jaumea carnosa			83	37					50	75				25	18		14
Artemisia californica										8		67		25	36	100	7