 |
juice watery; NOT [juice milky] |
|
leaves not mottled |
|
leaves with spiny margins |
|
receptacle densely bristly; NOT
[receptacle naked] |
|
bracts of involucre not dry or
parchmenty, usually green; NOT [bracts of involucre dry, parchmenty or
membranous, not green] |
|
some involucral bracts spiny-tipped; NOT
[involucral bracts with hooked bristles] |
|
flower heads with all florets tubular |
|
stamens united to form a tube around the
pistil |
|
achenes 3-4 mm long; NOT [achenes 6-7 mm
long] |
|
pappus present, distinct; NOT [pappus
none or inconspicuous] |
|
pappus of hairs; NOT [pappus of scales,
or of awns, or a crown] |
|
pappus hairs much longer than achene; NOT
[pappus hairs not longer than achene] |
|
pappus hairs naked or merely minutely
barbellate; NOT [pappus hairs plumose]
|
