Difference between revisions of "Cirsium eatonii"

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{{Plant2000
 
{{Plant2000
|apex architecture_or_shape=spiny
+
|apex architecture or shape=spiny
|apex orientation=ascending,spreading
+
|apex orientation=ascending;spreading
 
|apex position=outer
 
|apex position=outer
|apex shape=linear-acicular,entire,plane,spine-tipped
+
|apex shape=linear-acicular;entire;plane;spine-tipped
|array architecture=subcapitate,spiciform,racemiform,branched
+
|array architecture=subcapitate;spiciform;racemiform;branched
 
|base orientation=short-appressed
 
|base orientation=short-appressed
 
|blade shape=oblong
 
|blade shape=oblong
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|collar coloration=stramineous
 
|collar coloration=stramineous
 
|collar variability=differentiated
 
|collar variability=differentiated
|corolla coloration=ochroleucous,yellow,lavender,pink,purple
+
|corolla coloration=ochroleucous;yellow;lavender;pink;purple
 
|cypsela coloration=brown
 
|cypsela coloration=brown
|face architecture=winged-petiolate,sessile
+
|face architecture=winged-petiolate;sessile
 
|face arrangement=distributed
 
|face arrangement=distributed
|face count=present,many
+
|face count=present;many
|face external_texture=glabrous,villous,glabrous,villous
+
|face external texture=glabrous;villous;glabrous;villous
 
|face other=principal
 
|face other=principal
|face position=adaxial,basal,cauline,distal
+
|face position=adaxial;basal;cauline;distal
|face size=reduced,reduced
+
|face size=reduced;reduced
|head architecture=sessile,short-pedunculate
+
|head architecture=sessile;short-pedunculate
 
|head arrangement=crowded
 
|head arrangement=crowded
|head orientation=erect,nodding
+
|head orientation=erect;nodding
|involucre coloration=green,suffused,with,dark-c-purple,purple
+
|involucre coloration=green;suffused with dark-c-purple;purple
|involucre external_texture=villous,tomentose
+
|involucre external texture=villous;tomentose
|involucre shape=ovoid,campanulate
+
|involucre shape=ovoid;campanulate
 
|involucre width=wider
 
|involucre width=wider
|lobe arrangement=spaced,spaced
+
|lobe arrangement=spaced;spaced
|lobe arrangement_or_shape=linear
+
|lobe arrangement or shape=linear
 
|margin arrangement=overlapping
 
|margin arrangement=overlapping
|margin shape=undulate,unlobed,spiny-dentate,pinnatifid,lance-oblong,triangular,3-lobed,spiny-dentate
+
|margin shape=undulate;unlobed;spiny-dentate;pinnatifid;lance-oblong;triangular;3-lobed;spiny-dentate
|midvein external_texture=arachnoid-tomentose
+
|midvein external texture=arachnoid-tomentose
 
|phyllary size=subequal
 
|phyllary size=subequal
 
|ridge width=narrow
 
|ridge width=narrow
|stem architecture=simple,branched,branched
+
|stem architecture=simple;branched;branched
|stem external_texture=glabrous,villous,tomentose,glabrate
+
|stem external texture=glabrous;villous;tomentose;glabrate
|stem internal_texture=fleshy
+
|stem internal texture=fleshy
|stem orientation=erect,ascending
+
|stem orientation=erect;ascending
 
|tip position=exserted
 
|tip position=exserted
 
|tooth arrangement=spaced
 
|tooth arrangement=spaced
|trichome architecture=septate,septate,septate,septate,non-septate
+
|trichome architecture=septate;septate;septate;septate;non-septate
|trichome external_texture=arachnoid-tomentose
+
|trichome external texture=arachnoid-tomentose
|whole_organism life_style=perennial
+
|whole organism life style=perennial
|Flowering time=mar,spring,apr,may,jun,summer,jul,aug,sep,fall,oct,nov
+
 
}}
 
}}
 
Cirsium eatonii is a polymorphic species widely distributed in a high elevation archipelago across the central Rocky Mountains and the Intermountain Region. During Pleistocene glacial episodes, the progenitors of this species complex undoubtedly occupied lower elevation sites and likely had more contiguous populations. Post-glacial isolation of these populations in allopatric high elevation sites has allowed them to differentiate to a greater or lesser extent. Prehistoric or recent introgressive hybridization with other thistle species probably has contributed to the diversification of the complex (R. J. Moore and C. Frankton 1965). Several of the races recognized here as varieties have been treated in the past as species (e.g., C. clokeyi, C. peckii). Their current geographic isolation and more or less distinctive features might support such recognition, but application of this approach across the complex would result in a proliferation of microspecies.
 
Cirsium eatonii is a polymorphic species widely distributed in a high elevation archipelago across the central Rocky Mountains and the Intermountain Region. During Pleistocene glacial episodes, the progenitors of this species complex undoubtedly occupied lower elevation sites and likely had more contiguous populations. Post-glacial isolation of these populations in allopatric high elevation sites has allowed them to differentiate to a greater or lesser extent. Prehistoric or recent introgressive hybridization with other thistle species probably has contributed to the diversification of the complex (R. J. Moore and C. Frankton 1965). Several of the races recognized here as varieties have been treated in the past as species (e.g., C. clokeyi, C. peckii). Their current geographic isolation and more or less distinctive features might support such recognition, but application of this approach across the complex would result in a proliferation of microspecies.

Latest revision as of 22:56, 18 February 2014


Cirsium eatonii is a polymorphic species widely distributed in a high elevation archipelago across the central Rocky Mountains and the Intermountain Region. During Pleistocene glacial episodes, the progenitors of this species complex undoubtedly occupied lower elevation sites and likely had more contiguous populations. Post-glacial isolation of these populations in allopatric high elevation sites has allowed them to differentiate to a greater or lesser extent. Prehistoric or recent introgressive hybridization with other thistle species probably has contributed to the diversification of the complex (R. J. Moore and C. Frankton 1965). Several of the races recognized here as varieties have been treated in the past as species (e.g., C. clokeyi, C. peckii). Their current geographic isolation and more or less distinctive features might support such recognition, but application of this approach across the complex would result in a proliferation of microspecies.

Facts about "Cirsium eatonii"
apex architecture or shapespiny +
apex orientationascending + and spreading +
apex positionouter +
apex shapelinear-acicular +, entire +, plane + and spine-tipped +
array architecturesubcapitate +, spiciform +, racemiform + and branched +
base orientationshort-appressed +
blade shapeoblong +
bract shapespiny-fringed +
branch orientationascending +
caudex architecturetaprooted +
collar colorationstramineous +
collar variabilitydifferentiated +
corolla colorationochroleucous +, yellow +, lavender +, pink + and purple +
cypsela colorationbrown +
face architecturewinged-petiolate + and sessile +
face arrangementdistributed +
face countpresent + and many +
face external textureglabrous + and villous +
face otherprincipal +
face positionadaxial +, basal +, cauline + and distal +
face sizereduced +
head architecturesessile + and short-pedunculate +
head arrangementcrowded +
head orientationerect + and nodding +
involucre colorationgreen +, suffused with dark-c-purple + and purple +
involucre external texturevillous + and tomentose +
involucre shapeovoid + and campanulate +
involucre widthwider +
lobe arrangementspaced +
lobe arrangement or shapelinear +
margin arrangementoverlapping +
margin shapeundulate +, unlobed +, spiny-dentate +, pinnatifid +, lance-oblong +, triangular + and 3-lobed +
midvein external texturearachnoid-tomentose +
phyllary sizesubequal +
ridge widthnarrow +
stem architecturesimple + and branched +
stem external textureglabrous +, villous +, tomentose + and glabrate +
stem internal texturefleshy +
stem orientationerect + and ascending +
tip positionexserted +
tooth arrangementspaced +
trichome architectureseptate + and non-septate +
trichome external texturearachnoid-tomentose +
whole organism life styleperennial +