Key

Taxon:
Display:
Plant
  longevity
   annual or biennial
   perennial
  armature
   unarmed
   armed
Leaves
  arrangement/phyllotaxy
   basal
   alternate
  blade division
   all simple
   deeply lobed or divided
   some or all fully compound
  leaf attachment
   sessile or nearly so
   leaf stalk (petiole) clearly present
  leaf (leaflet) margin
   entire
   toothed
Inflorescence
  type
   solitary
   cymose
Composite Traits
  head type
   discoid (disk only)
   radiate (rays and disks)

Denver Botanic Gardens Chatfield Thistles (ID)

Melissa Islam
Species Count: 7

Asteraceae