Property:Head arrangement

Types of head arrangement

None.

Parts of head arrangement

None.

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B
Bidens leptocephala +
singly  +
Bidens mitis +
singly  +
Bidens pilosa +
singly  +
Bidens polylepis +
in open , more or less corymbiform arrays  +, in 2s  +, singly  +
Bidens tenuisecta +
singly  +
Bidens trichosperma +
singly  +
Bidens tripartita +
in 2s  +, singly  +
Bidens vulgata +
in 2s or 3s or in open , corymbiform arrays  +, singly  +
Bigelowia +
singly  +
Bigelowia nudata +
singly  +
Bigelowia nudata var. australis +
singly  +
Bigelowia nudata var. nudata +
singly  +
Bigelowia nuttallii +
singly  +
Blennosperma +
singly  +
Blennosperma bakeri +
singly  +
Blennosperma nanum +
singly  +
Blennosperma nanum var. nanum +
singly  +
Blennosperma nanum var. robustum +
singly  +
Blepharipappus +
in open , corymbiform arrays  +, singly  +
Blepharipappus scaber +
in open , corymbiform arrays  +, singly  +
Blepharizonia +
in more or less racemiform-paniculiform , paniculiform or spiciform , arrays  +, singly  +
Blepharizonia laxa +
in more or less racemiform-paniculiform arrays  +, singly  +
Blepharizonia plumosa +
in more or less racemiform-paniculiform , paniculiform or spiciform , arrays  +, singly  +
Boltonia +
singly  +
Boltonia apalachicolensis +
singly  +
Boltonia asteroides +
singly  +
Boltonia asteroides var. asteroides +
singly  +
Boltonia asteroides var. latisquama +
singly  +
Boltonia asteroides var. recognita +
singly  +
Boltonia caroliniana +
singly  +
Boltonia decurrens +
singly  +
Boltonia diffusa +
singly  +
Boltonia diffusa var. diffusa +
singly  +
Boltonia diffusa var. interior +
singly  +
Borrichia +
singly  +
Borrichia arborescens +
singly  +
Borrichia frutescens +
singly  +
Borrichia ×cubana +
singly  +
Bradburia +
in lax paniculiform arrays  +, singly  +
Bradburia hirtella +
in lax paniculiform arrays  +, singly  +
Bradburia pilosa +
in lax paniculiform arrays  +, singly  +
Brickellia +
singly  +
Brickellia amplexicaulis +
singly  +
Brickellia atractyloides +
singly  +
Brickellia atractyloides var. arguta +
singly  +
Brickellia atractyloides var. atractyloides +
singly  +
Brickellia atractyloides var. odontolepis +
singly  +
Brickellia baccharidea +
singly  +
Brickellia betonicifolia +
singly  +
Brickellia brachyphylla +
singly  +
Brickellia californica +
singly  +
Brickellia chenopodina +
singly  +
Brickellia cordifolia +
singly  +
Brickellia coulteri +
singly  +
Brickellia coulteri var. brachiata +
singly  +
Brickellia coulteri var. coulteri +
singly  +
Brickellia cylindracea +
singly  +
Brickellia dentata +
singly  +
Brickellia desertorum +
singly  +
Brickellia eupatorioides +
singly  +
Brickellia eupatorioides var. chlorolepis +
singly  +
Brickellia eupatorioides var. corymbulosa +
singly  +
Brickellia eupatorioides var. eupatorioides +
singly  +
Brickellia eupatorioides var. floridana +
singly  +
Brickellia eupatorioides var. gracillima +
singly  +
Brickellia eupatorioides var. texana +
singly  +
Brickellia floribunda +
singly  +
Brickellia frutescens +
singly  +
Brickellia grandiflora +
singly  +
Brickellia greenei +
in open , cymiform arrays  +, singly  +
Brickellia hinckleyi +
singly  +
Brickellia hinckleyi var. hinckleyi +
singly  +
Brickellia hinckleyi var. terlinguensis +
singly  +
Brickellia incana +
singly  +
Brickellia knappiana +
singly  +
Brickellia laciniata +
singly  +
Brickellia lemmonii +
singly  +
Brickellia lemmonii var. conduplicata +
singly  +
Brickellia lemmonii var. lemmonii +
singly  +
Brickellia longifolia +
singly  +
Brickellia longifolia var. longifolia +
singly  +
Brickellia longifolia var. multiflora +
singly  +
Brickellia microphylla +
singly  +
Brickellia microphylla var. microphylla +
singly  +
Brickellia microphylla var. scabra +
singly  +
Brickellia nevinii +
singly  +
Brickellia oblongifolia +
in corymbiform arrays  +, singly  +
Brickellia oblongifolia var. linifolia +
in corymbiform arrays  +, singly  +
Brickellia oblongifolia var. oblongifolia +
in corymbiform arrays  +, singly  +
Brickellia parvula +
in corymbiform-paniculiform arrays  +, singly  +
Brickellia pringlei +
in paniculiform arrays  +, singly  +
Brickellia rusbyi +
singly  +
Brickellia simplex +
in open , paniculiform arrays  +, singly  +
Brickellia venosa +
singly  +
Brickellia veronicifolia +
singly  +
Brickelliastrum +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Brickelliastrum fendleri +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Brintonia +
singly  +
Brintonia discoidea +
singly  +
Buddleja +
pseudoverticellate  +
Buddleja davidii +
pseudoverticellate  +
Buddleja indica +
pseudoverticellate  +
Buddleja lindleyana +
pseudoverticellate  +
Buddleja madagascariensis +
pseudoverticellate  +
Buddleja marrubiifolia +
pseudoverticellate  +
Buddleja racemosa +
pseudoverticellate  +
Buddleja racemosa var. incana +
pseudoverticellate  +
Buddleja racemosa var. racemosa +
pseudoverticellate  +
Buddleja saligna +
pseudoverticellate  +
Buddleja scordioides +
pseudoverticellate  +
Buddleja sessiliflora +
pseudoverticellate  +
Buddleja utahensis +
pseudoverticellate  +
C
Cacaliopsis +
singly  +
Cacaliopsis nardosmia +
singly  +
Calendula +
singly  +
Calendula arvensis +
singly  +
Calendula officinalis +
singly  +
Calycadenia +
in open to dense  +, singly  +
Calycadenia fremontii +
in open , spiciform arrays  +, singly  +
Calycadenia hooveri +
in more or less spiciform arrays  +, singly  +
Calycadenia micrantha +
in more or less spiciform arrays  +, singly  +
Calycadenia mollis +
in open to dense  +, singly  +
Calycadenia multiglandulosa +
in spiciform arrays  +, singly  +
Calycadenia oppositifolia +
in open to dense  +, singly  +
Calycadenia pauciflora +
in open , spiciform arrays  +, singly  +
Calycadenia spicata +
in open to dense  +, singly  +
Calycadenia truncata +
in open to dense  +, singly  +
Calycadenia villosa +
in open to dense  +, singly  +
Calycoseris +
in open , cymiform arrays  +, singly  +
Calycoseris parryi +
in open , cymiform arrays  +, singly  +
Calycoseris wrightii +
in open , cymiform arrays  +, singly  +
Calyptocarpus +
singly  +
Calyptocarpus vialis +
singly  +
Canadanthus +
singly  +
Canadanthus modestus +
singly  +
Carduus +
singly  +
Carduus acanthoides +
singly  +
Carduus acanthoides subsp. acanthoides +
in corymbiform arrays  +, singly  +
Carduus crispus +
singly  +
Carduus nutans +
in corymbiform arrays  +, singly  +
Carduus pycnocephalus +
singly  +
Carduus pycnocephalus subsp. pycnocephalus +
clustered  +, or  +
Carduus tenuiflorus +
singly  +
Carlina +
in corymbiform arrays  +, singly  +
Carlina vulgaris +
in corymbiform arrays  +, singly  +
Carlina vulgaris subsp. vulgaris +
in corymbiform arrays  +, singly  +
Carlquistia +
in loose , corymbiform arrays  +, singly  +
Carlquistia muirii +
in loose , corymbiform arrays  +, singly  +
Carminatia +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carminatia tenuiflora +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus bellidifolius +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus carnosus +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus corymbosus +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus odoratissimus +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus odoratissimus var. odoratissimus +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus odoratissimus var. subtropicanus +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus paniculatus +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus pseudoliatris +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphephorus tomentosus +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphochaete +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carphochaete bigelovii +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Carthamus +
in few-headed cymiform arrays  +, singly  +
Carthamus creticus +
in few-headed cymiform arrays  +, singly  +
Carthamus lanatus +
in few-headed cymiform arrays  +, singly  +
Carthamus leucocaulos +
in few-headed cymiform arrays  +, singly  +
Carthamus tinctorius +
in few-headed cymiform arrays  +, singly  +
Centaurea +
in corymbiform arrays  +, singly  +, radiant  +
Centaurea benedicta +
in corymbiform arrays  +, singly  +, radiant  +
Centaurea calcitrapa +
in leafy cymiform arrays  +, singly  +
Centaurea cyanus +
radiant  +
Centaurea depressa +
singly  +, radiant  +
Centaurea diffusa +
in corymbiform arrays  +, singly  +, radiant  +
Centaurea diluta +
radiant  +
Centaurea iberica +
in leafy cymiform arrays  +, singly  +
Centaurea jacea +
radiant  +
Centaurea macrocephala +
singly  +, radiant  +
Centaurea melitensis +
in open leafy corymbiform arrays  +, singly  +
Centaurea montana +
in few-headed corymbiform arrays  +, singly  +, radiant  +
Centaurea nigra +
in corymbiform arrays  +, singly  +, radiant  +
Centaurea nigrescens +
radiant  +
Centaurea phrygia +
singly  +, radiant  +
Centaurea scabiosa +
singly  +
Centaurea solstitialis +
in open leafy arrays  +, singly  +
Centaurea stoebe +
in corymbiform arrays  +, singly  +, radiant  +
Centaurea stoebe subsp. micranthos +
in corymbiform arrays  +, singly  +, radiant  +
Centaurea sulphurea +
in open , few-headed corymbiform arrays  +, singly  +
Centaurea virgata +
in corymbiform arrays  +, singly  +, radiant  +
Centaurea virgata subsp. squarrosa +
in corymbiform arrays  +, singly  +, radiant  +
Centaurea ×moncktonii +
radiant  +
Centratherum +
singly  +
Centratherum punctatum +
singly  +
Centromadia +
singly  +
Centromadia fitchii +
singly  +
Centromadia parryi +
singly  +
Centromadia parryi subsp. australis +
singly  +
Centromadia parryi subsp. congdonii +
singly  +
Centromadia parryi subsp. parryi +
singly  +
Centromadia parryi subsp. rudis +
singly  +
Centromadia pungens +
singly  +
Centromadia pungens subsp. laevis +
singly  +
Centromadia pungens subsp. pungens +
singly  +
Chaenactis +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis alpigena +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis artemisiifolia +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis carphoclinia +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis carphoclinia var. carphoclinia +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis carphoclinia var. peirsonii +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis cusickii +
radiant  +
Chaenactis douglasii +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis douglasii var. alpina +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis douglasii var. douglasii +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis evermannii +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis fremontii +
radiant  +
Chaenactis glabriuscula +
radiant  +
Chaenactis glabriuscula var. glabriuscula +
radiant  +
Chaenactis glabriuscula var. heterocarpha +
radiant  +
Chaenactis glabriuscula var. lanosa +
radiant  +
Chaenactis glabriuscula var. megacephala +
radiant  +
Chaenactis glabriuscula var. orcuttiana +
radiant  +
Chaenactis macrantha +
radiant  +
Chaenactis nevadensis +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis nevii +
radiant  +
Chaenactis parishii +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis santolinoides +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis sect. Acarphaea +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis sect. Chaenactis +
radiant  +
Chaenactis sect. Macrocarphus +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis stevioides +
radiant  +
Chaenactis suffrutescens +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis thompsonii +
in more or less cymiform arrays  +, singly  +, radiant  +
Chaenactis xantiana +
radiant  +
Chaetadelpha +
singly  +
Chaetadelpha wheeleri +
singly  +
Chaetopappa +
singly  +
Chaetopappa asteroides +
singly  +
Chaetopappa asteroides var. asteroides +
singly  +
Chaetopappa asteroides var. grandis +
singly  +
Chaetopappa bellidifolia +
singly  +
Chaetopappa bellioides +
singly  +
Chaetopappa effusa +
singly  +
Chaetopappa ericoides +
singly  +
Chaetopappa hersheyi +
singly  +
Chaetopappa imberbis +
singly  +
Chaetopappa parryi +
singly  +
Chamaechaenactis +
singly  +
Chamaechaenactis scaposa +
singly  +
Chamaemelum +
in lax corymbiform arrays  +, singly  +
Chamaemelum fuscatum +
in lax corymbiform arrays  +, singly  +
Chamaemelum nobile +
in lax corymbiform arrays  +, singly  +
Chaptalia +
singly  +
Chaptalia albicans +
singly  +
Chaptalia texana +
singly  +
Chaptalia tomentosa +
singly  +
Chloracantha +
singly  +
Chloracantha spinosa +
singly  +
Chloracantha spinosa var. spinosa +
singly  +
Chondrilla +
singly  +
Chondrilla juncea +
singly  +
Chorisiva +
singly  +
Chorisiva nevadensis +
singly  +
Chromolaena +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Chromolaena bigelovii +
singly  +
Chromolaena frustrata +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Chromolaena ivifolia +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Chromolaena odorata +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Chrysactinia +
singly  +
Chrysactinia mexicana +
singly  +
Chrysanthemoides +
in loose , corymbiform arrays  +, singly  +
Chrysanthemoides monilifera +
in loose , corymbiform arrays  +, singly  +
Chrysogonum +
in cymiform , corymbiform , paniculiform , racemiform or spiciform , arrays  +, singly  +
Chrysogonum virginianum +
in cymiform , corymbiform , paniculiform , racemiform or spiciform , arrays  +, singly  +
Chrysogonum virginianum var. australe +
in cymiform , corymbiform , paniculiform , racemiform or spiciform , arrays  +, singly  +
Chrysogonum virginianum var. brevistolon +
in cymiform , corymbiform , paniculiform , racemiform or spiciform , arrays  +, singly  +
Chrysogonum virginianum var. virginianum +
in cymiform , corymbiform , paniculiform , racemiform or spiciform , arrays  +, singly  +
Chrysoma +
singly  +
Chrysoma pauciflosculosa +
singly  +
Chrysopsis +
singly  +
Chrysopsis delaneyi +
singly  +
Chrysopsis floridana +
singly  +
Chrysopsis godfreyi +
singly  +
Chrysopsis gossypina +
singly  +
Chrysopsis gossypina subsp. cruiseana +
singly  +
Chrysopsis gossypina subsp. gossypina +
singly  +
Chrysopsis gossypina subsp. hyssopifolia +
singly  +
Chrysopsis highlandsensis +
singly  +
Chrysopsis lanuginosa +
singly  +
Chrysopsis latisquamea +
singly  +
Chrysopsis linearifolia +
singly  +
Chrysopsis linearifolia subsp. dressii +
singly  +
Chrysopsis linearifolia subsp. linearifolia +
singly  +
Chrysopsis mariana +
singly  +
Chrysopsis scabrella +
singly  +
Chrysopsis subulata +
singly  +
Chrysothamnus +
in condensed cymiform clusters  +, singly  +
Chrysothamnus depressus +
in condensed cymiform clusters  +, singly  +
Chrysothamnus eremobius +
in condensed cymiform clusters  +, singly  +
Chrysothamnus greenei +
in condensed cymiform clusters  +, singly  +
Chrysothamnus humilis +
in condensed cymiform clusters  +, singly  +
Chrysothamnus molestus +
in condensed cymiform clusters  +, singly  +
Chrysothamnus scopulorum +
in condensed cymiform clusters  +, singly  +
Chrysothamnus stylosus +
in condensed cymiform clusters  +, singly  +
Chrysothamnus vaseyi +
in condensed cymiform clusters  +, singly  +
Chrysothamnus viscidiflorus +
in condensed cymiform clusters  +, singly  +
Chrysothamnus viscidiflorus subsp. axillaris +
in condensed cymiform clusters  +, singly  +
Chrysothamnus viscidiflorus subsp. lanceolatus +
in condensed cymiform clusters  +, singly  +
Chrysothamnus viscidiflorus subsp. planifolius +
in condensed cymiform clusters  +, singly  +
Chrysothamnus viscidiflorus subsp. puberulus +
in condensed cymiform clusters  +, singly  +
Chrysothamnus viscidiflorus subsp. viscidiflorus +
in condensed cymiform clusters  +, singly  +
Cichorium +
singly  +
Cichorium intybus +
singly  +
Cirsium +
singly  +
Cirsium altissimum +
singly  +
Cirsium andersonii +
in corymbiform , racemiform or spiciform , arrays  +, singly  +
Cirsium andrewsii +
singly  +
Cirsium arizonicum +
singly  +
Cirsium arizonicum var. arizonicum +
singly  +
Cirsium arizonicum var. bipinnatum +
singly  +
Cirsium arizonicum var. chellyense +
singly  +
Cirsium arizonicum var. rothrockii +
singly  +
Cirsium arizonicum var. tenuisectum +
singly  +
Cirsium arvense +
in corymbiform or paniculiform arrays  +, singly  +
Cirsium barnebyi +
clustered  +, or  +
Cirsium brevifolium +
singly  +
Cirsium brevistylum +
crowded  +
Cirsium canescens +
singly  +
Cirsium carolinianum +
singly  +
Cirsium ciliolatum +
singly  +
Cirsium clavatum +
clustered  +, or  +
Cirsium clavatum var. americanum +
clustered  +, or  +
Cirsium clavatum var. clavatum +
clustered  +, or  +
Cirsium clavatum var. osterhoutii +
clustered  +, or  +
Cirsium crassicaule +
singly  +
Cirsium cymosum +
singly  +
Cirsium cymosum var. canovirens +
singly  +
Cirsium cymosum var. cymosum +
singly  +
Cirsium discolor +
singly  +
Cirsium douglasii +
crowded  +
Cirsium douglasii var. breweri +
crowded  +
Cirsium douglasii var. douglasii +
crowded  +
Cirsium drummondii +
crowded  +, or  +
Cirsium eatonii +
crowded  +
Cirsium eatonii var. clokeyi +
crowded  +
Cirsium eatonii var. eatonii +
crowded  +
Cirsium eatonii var. eriocephalum +
crowded  +
Cirsium eatonii var. hesperium +
crowded  +
Cirsium eatonii var. murdockii +
crowded  +
Cirsium eatonii var. peckii +
crowded  +
Cirsium eatonii var. viperinum +
crowded  +
Cirsium edule +
crowded  +
Cirsium edule var. edule +
crowded  +
Cirsium edule var. macounii +
crowded  +
Cirsium edule var. wenatchense +
singly  +
Cirsium engelmannii +
singly  +
Cirsium flodmanii +
singly  +
Cirsium foliosum +
crowded  +
Cirsium fontinale +
singly  +
Cirsium fontinale var. campylon +
singly  +
Cirsium fontinale var. fontinale +
singly  +
Cirsium fontinale var. obispoense +
singly  +
Cirsium grahamii +
singly  +
Cirsium helenioides +
less commonly  +, singly  +
Cirsium hookerianum +
crowded  +, or  +
Cirsium horridulum +
singly  +
Cirsium horridulum var. horridulum +
singly  +
Cirsium horridulum var. megacanthum +
singly  +
Cirsium horridulum var. vittatum +
singly  +
Cirsium hydrophilum +
singly  +
Cirsium hydrophilum var. hydrophilum +
singly  +
Cirsium hydrophilum var. vaseyi +
singly  +
Cirsium inamoenum +
singly  +
Cirsium inamoenum var. davisii +
singly  +
Cirsium inamoenum var. inamoenum +
singly  +
Cirsium joannae +
crowded  +
Cirsium kamtschaticum +
singly  +
Cirsium lecontei +
less commonly  +, singly  +
Cirsium longistylum +
singly  +
Cirsium mohavense +
singly  +
Cirsium muticum +
singly  +
Cirsium neomexicanum +
in corymbiform arrays  +, singly  +
Cirsium nuttallii +
singly  +
Cirsium occidentale +
singly  +
Cirsium occidentale var. californicum +
singly  +
Cirsium occidentale var. candidissimum +
singly  +
Cirsium occidentale var. compactum +
in more or less tight clusters  +, singly  +
Cirsium occidentale var. coulteri +
singly  +
Cirsium occidentale var. lucianum +
singly  +
Cirsium occidentale var. occidentale +
singly  +
Cirsium occidentale var. venustum +
singly  +
Cirsium ochrocentrum +
singly  +
Cirsium ochrocentrum var. martinii +
singly  +
Cirsium ochrocentrum var. ochrocentrum +
singly  +
Cirsium ownbeyi +
crowded  +
Cirsium palustre +
singly  +
Cirsium parryi +
singly  +
Cirsium perplexans +
singly  +
Cirsium pitcheri +
singly  +
Cirsium praeteriens +
singly  +
Cirsium pulcherrimum +
in 2-3-headed clusters in more or less congested flat-topped or racemiform arrays  +, singly  +
Cirsium pulcherrimum var. aridum +
in 2-3-headed clusters in more or less congested flat-topped or racemiform arrays  +, singly  +
Cirsium pulcherrimum var. pulcherrimum +
in 2-3-headed clusters in more or less congested flat-topped or racemiform arrays  +, singly  +
Cirsium pumilum +
singly  +
Cirsium pumilum var. hillii +
singly  +
Cirsium pumilum var. pumilum +
singly  +
Cirsium quercetorum +
crowded  +
Cirsium remotifolium +
singly  +
Cirsium remotifolium var. odontolepis +
singly  +
Cirsium remotifolium var. remotifolium +
singly  +
Cirsium remotifolium var. rivulare +
singly  +
Cirsium repandum +
singly  +
Cirsium rhothophilum +
singly  +
Cirsium rydbergii +
singly  +
Cirsium scariosum +
crowded  +, singly  +
Cirsium scariosum var. americanum +
crowded  +
Cirsium scariosum var. citrinum +
crowded  +, singly  +
Cirsium scariosum var. coloradense +
crowded  +, singly  +
Cirsium scariosum var. congdonii +
crowded  +
Cirsium scariosum var. robustum +
crowded  +, singly  +
Cirsium scariosum var. scariosum +
crowded  +, singly  +
Cirsium scariosum var. thorneae +
crowded  +, solitary  +
Cirsium scariosum var. toiyabense +
crowded  +
Cirsium texanum +
singly  +
Cirsium tracyi +
singly  +
Cirsium turneri +
in condensed corymbiform arrays  +, singly  +
Cirsium undulatum +
singly  +
Cirsium vinaceum +
singly  +
Cirsium virginianum +
singly  +
Cirsium vulgare +
singly  +
Cirsium wheeleri +
singly  +
Cirsium wrightii +
singly  +
Cladanthus +
in lax , corymbiform arrays  +, singly  +
Cladanthus mixtus +
in lax , corymbiform arrays  +, singly  +
Clappia +
singly  +
Clappia suaedifolia +
singly  +
Columbiadoria +
singly  +
Columbiadoria hallii +
singly  +
Conoclinium +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Conoclinium betonicifolium +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Conoclinium betonicifolium var. betonicifolium +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Conoclinium betonicifolium var. integrifolium +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Conoclinium coelestinum +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Conoclinium dissectum +
in usually determinate , rarely indeterminate , arrays  +, singly  +
Constancea +
in corymbiform , glomerate or paniculiform , arrays  +, singly  +
Constancea nevinii +
in corymbiform , glomerate or paniculiform , arrays  +, singly  +
Conyza +
singly  +
Conyza bonariensis +
singly  +
Conyza canadensis +
singly  +
Conyza floribunda +
singly  +
Conyza ramosissima +
singly  +
Coreocarpus +
in more or less corymbiform , cymiform or paniculiform , arrays  +, singly  +
Coreocarpus arizonicus +
in more or less corymbiform , cymiform or paniculiform , arrays  +, singly  +
Coreopsis +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis auriculata +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis basalis +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis bigelovii +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis californica +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis calliopsidea +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis delphiniifolia +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis douglasii +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis gigantea +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis gladiata +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis grandiflora +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis hamiltonii +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis integrifolia +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis intermedia +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis lanceolata +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis latifolia +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis leavenworthii +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis major +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis maritima +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis nudata +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis nuecensis +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis palmata +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis pubescens +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis pulchra +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis rosea +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis sect. Calliopsis +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis sect. Coreopsis +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis sect. Eublepharis +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis sect. Gyrophyllum +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis sect. Leptosyne +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis sect. Pugiopappus +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis sect. Silphidium +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis sect. Tuckermannia +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis stillmanii +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis tinctoria +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis tripteris +
in open , more or less corymbiform arrays  +, singly  +
Coreopsis verticillata +
in open , more or less corymbiform arrays  +, singly  +
Corethrogyne +
singly  +
Corethrogyne filaginifolia +
singly  +
Cosmos +
in corymbiform arrays  +, singly  +
Cosmos bipinnatus +
in corymbiform arrays  +, singly  +
Cosmos caudatus +
in corymbiform arrays  +, singly  +
Cosmos parviflorus +
in corymbiform arrays  +, singly  +
Cosmos sulphureus +
in corymbiform arrays  +, singly  +
Cota +
in lax , corymbiform arrays  +, singly  +
Cota tinctoria +
in lax , corymbiform arrays  +, singly  +
Cotula +
singly  +
Cotula australis +
singly  +
Cotula coronopifolia +
singly  +