Difference between revisions of "Saussurea angustifolia"

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{{Plant2000
 
{{Plant2000
|anther coloration=purple
+
|blade arrangement or shape=linear,elliptic
|apex shape=acute
+
|chromosome count=26,52
|array architecture=open,crowded
+
|head arrangement=crowded,in,moreorless
|base shape=acute
+
|margin arrangement=crowded,separated
|bristle coloration=brownish
+
|margin external texture=glabrous,arachnoid
|bristle position=outer,inner
+
|margin shape=entire,denticulate,cauline,oblong
|corolla coloration=purple
+
|phyllary position=outer
|face coloration=green,purplish
+
|face external texture=pilose,tomentose
+
|leaf architecture=sessile
+
|leaf position=basal,cauline
+
|leaf size=smaller
+
|margin shape=entire,dentate
+
|phyllary position=outer,inner,outer
+
|phyllary shape=ovate,lanceolate
+
 
|phyllary size=unequal
 
|phyllary size=unequal
|receptacle architecture or external texture=scaly
 
|rhizome size=slender
 
 
|stem architecture=simple
 
|stem architecture=simple
|stem count=few
+
|stem external texture=arachnoid
|stem orientation=arising,ascending
+
|tip shape=acute
+
|whole organism external texture=tomentose,glabrescent
+
 
|whole organism life style=plant
 
|whole organism life style=plant
|whole organism other=herbage
 
 
|flowering time=jul,summer,aug
 
|flowering time=jul,summer,aug
 
}}
 
}}
 
Extreme forms of the varieties of Saussurea angustifolia are distinctive, ranging from slender, erect, subglabrous specimens of var. angustifolia to dwarf, densely pubescent forms of vars. viscida and yukonensis. The extremes are connected by intermediates. As is indicated by the synonymy, little unanimity exists in the interpretation of these taxa. I have chosen to follow S. L. Welsh (1974) in treating S. densa as a variety of S. angustifolia rather than as a distinct species. The extent to which the differences among these taxa are genetic or environmentally induced has not been investigated.
 
Extreme forms of the varieties of Saussurea angustifolia are distinctive, ranging from slender, erect, subglabrous specimens of var. angustifolia to dwarf, densely pubescent forms of vars. viscida and yukonensis. The extremes are connected by intermediates. As is indicated by the synonymy, little unanimity exists in the interpretation of these taxa. I have chosen to follow S. L. Welsh (1974) in treating S. densa as a variety of S. angustifolia rather than as a distinct species. The extent to which the differences among these taxa are genetic or environmentally induced has not been investigated.

Revision as of 19:15, 28 November 2013


Extreme forms of the varieties of Saussurea angustifolia are distinctive, ranging from slender, erect, subglabrous specimens of var. angustifolia to dwarf, densely pubescent forms of vars. viscida and yukonensis. The extremes are connected by intermediates. As is indicated by the synonymy, little unanimity exists in the interpretation of these taxa. I have chosen to follow S. L. Welsh (1974) in treating S. densa as a variety of S. angustifolia rather than as a distinct species. The extent to which the differences among these taxa are genetic or environmentally induced has not been investigated.