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This category includes the native flora of the Southwestern United States, within the United States, in North America.
- Taxa of the lowest rank are always included. Higher taxa are included only if endemic.
- For the purposes of this category, the "Southwestern United States" is defined in accordance with the World Geographical Scheme for Recording Plant Distributions. That is, the geographic region is defined by the political boundaries of its constituents:
- See also southern adjacent: Category:Flora of Northwestern Mexico.
Subcategories
This category has the following 5 subcategories, out of 5 total.
Pages in category "Flora of the Southwestern United States"
The following 200 pages are in this category, out of approximately 663 total. This list may not reflect recent changes.
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- Abronia fragrans
- Acalypha ostryifolia
- Acamptopappus
- Acmispon grandiflorus
- Aconitum columbianum
- Acourtia nana
- Actaea rubra
- Adenophyllum cooperi
- Adenophyllum porophylloides
- Adiantum aleuticum
- Ageratina herbacea
- Ageratina paupercula
- Ageratina rothrockii
- Ageratina wrightii
- Agoseris aurantiaca
- Agoseris glauca
- Agoseris heterophylla
- Agrostis elliottiana
- Aliciella subnuda
- Allenrolfea occidentalis
- Allium acuminatum
- Allium bisceptrum
- Allium macropetalum
- Almutaster
- Aloysia wrightii
- Amaranthus acanthochiton
- Amaranthus fimbriatus
- Amaranthus torreyi
- Amaranthus watsonii
- Ambrosia acanthicarpa
- Ambrosia ambrosioides
- Ambrosia chamissonis
- Ambrosia confertiflora
- Ambrosia dumosa
- Ambrosia eriocentra
- Ambrosia salsola
- Amelanchier alnifolia
- Amsinckia menziesii
- Amsonia tomentosa
- Androstephium breviflorum
- Anemone drummondii
- Anemone parviflora
- Anemone tuberosa
- Antennaria anaphaloides
- Antennaria corymbosa
- Antennaria dimorpha
- Antennaria flagellaris
- Antennaria lanata
- Antennaria luzuloides
- Antennaria marginata
- Antennaria media
- Antennaria microphylla
- Antennaria parvifolia
- Antennaria pulcherrima
- Antennaria rosea
- Antennaria rosulata
- Antennaria umbrinella
- Arctostaphylos patula
- Arctostaphylos pungens
- Argyrochosma jonesii
- Argyrochosma limitanea
- Aristida adscensionis
- Aristida purpurea
- Arnica cordifolia
- Arnica fulgens
- Arnica lanceolata
- Arnica latifolia
- Arnica longifolia
- Arnica mollis
- Arnica ovata
- Arnica parryi
- Arnica sororia
- Artemisia bigelovii
- Artemisia carruthii
- Artemisia franserioides
- Artemisia nova
- Artemisia pygmaea
- Artemisia spinescens
- Artemisia tridentata
- Asclepias asperula
- Asplenium adiantum-nigrum
- Astragalus aboriginorum
- Astragalus amphioxys
- Astragalus bisulcatus
- Astragalus didymocarpus
- Astragalus kentrophyta
- Astragalus miser
- Astragalus nuttallianus
- Astragalus preussii
- Astragalus purshii
- Astragalus sabulonum
- Astrolepis cochisensis
- Atrichoseris
- Atrichoseris platyphylla
- Atriplex canescens
- Atriplex confertifolia
- Atriplex elegans
- Atriplex gardneri
- Atriplex nuttallii
B
- Baccharis bigelovii
- Baccharis brachyphylla
- Baccharis salicifolia
- Baccharis sergiloides
- Bahia absinthifolia
- Bahiopsis parishii
- Baileya multiradiata
- Baileya pauciradiata
- Baileya pleniradiata
- Balsamorhiza sagittata
- Bebbia
- Bebbia juncea
- Berberis fendleri
- Berberis fremontii
- Berberis haematocarpa
- Berberis repens
- Berberis trifoliolata
- Betula glandulosa
- Bidens heterosperma
- Bidens leptocephala
- Bidens tenuisecta
- Bistorta bistortoides
- Bistorta vivipara
- Bitterroot
- Boehmeria cylindrica
- Boerhavia intermedia
- Boerhavia wrightii
- Bommeria
- Bothriochloa barbinodis
- Bouteloua barbata
- Bouteloua trifida
- Brickellia amplexicaulis
- Brickellia arguta
- Brickellia atractyloides
- Brickellia baccharidea
- Brickellia betonicifolia
- Brickellia brachyphylla
- Brickellia californica
- Brickellia coulteri
- Brickellia desertorum
- Brickellia floribunda
- Brickellia frutescens
- Brickellia incana
- Brickellia laciniata
- Brickellia lemmonii
- Brickellia longifolia
- Brickellia microphylla
- Brickellia oblongifolia
- Brickellia parvula
- Brickellia rusbyi
- Brickellia simplex
- Brickellia venosa
- Brickelliastrum
- Bromus arizonicus
- Bromus carinatus
- Buckleya distichophylla
- Buddleja utahensis
- Bursera microphylla
C
- California macrophylla
- Calliandra eriophylla
- Calochortus aureus
- Calochortus flexuosus
- Calochortus kennedyi
- Caltha leptosepala
- Calycoseris
- Calycoseris parryi
- Calycoseris wrightii
- Calylophus lavandulifolius
- Canotia holacantha
- Carex albonigra
- Carex alma
- Carex haydeniana
- Carex subfusca
- Carminatia tenuiflora
- Carnegiea gigantea
- Carphochaete bigelovii
- Castilleja minor
- Castilleja sessiliflora
- Ceanothus pauciflorus
- Centromadia pungens
- Cercocarpus breviflorus
- Chaenactis carphoclinia
- Chaenactis fremontii
- Chaetopappa ericoides
- Chaptalia texana
- Chasmanthium latifolium
- Chenopodium atrovirens
- Chenopodium desiccatum
- Chloris virgata
- Chloropyron maritimum
- Chorizanthe brevicornu
- Chorizanthe corrugata
- Chorizanthe rigida
- Chorizanthe watsonii
- Chrysothamnus depressus
- Chrysothamnus greenei
- Chrysothamnus vaseyi