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plants NOT annuals |
 |
plants NOT with a woody caudex |
 |
plants NOT heavily scented |
 |
plants NOT glandular-hairy |
 |
juice watery; NOT [juice milky] |
 |
plants with leafy stems; NOT [plants more
or less scapose, cauline leaves none, or few and reduced to bracts] |
 |
leaves alternate; NOT [leaves opposite,
at least below] |
 |
leaves NOT linear |
 |
flowers heads more than 6 mm across |
 |
involucral bracts in one or more series,
all more or less the same; NOT [involucral bracts of 2 distinct,
dissimilar series] |
 |
involucre NOT glandular-glutinous (BF) |
 |
involucre resinous (sticky and gummy)
(BF) |
 |
receptacle naked; NOT [receptacle chaffy
or bristly] |
 |
flower heads with both tubular and ray
florets |
 |
rays florets conspicuous; NOT [ray
florets 1-6, inconspicuous] |
 |
ray florets pistillate or neuter; NOT
[ray florets perfect] |
 |
rays erect or spreading; NOT [rays
deflexed] |
 |
rays more or less entire; NOT [rays
distinctly 3-lobed] |
 |
rays yellow |
 |
stamens united to form a tube around the
pistil |
 |
pappus of 2-several, firm, caducous awns;
NOT [pappus composed of hairs] |