Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Click images to enlarge and show more photo credit.

Key to Dipsacus

Dipsacaceae

Dipsacus

Copy permalink to share

1 Principal (lower) stem leaves laciniate-pinnatifid, cut at least halfway to the midrib; stems to 3 (-4) m tall
1 Principal (lower) stem leaves entire or toothed; stems to 2 (-3) m tall.
  2 Bracts on the receptacle 7-30 mm long, with straight apical spines, these stiff but flexible; bracts of the involucre 1-13 cm long, curved upward
  2 Bracts on the receptacle 12-14 mm long, with recurved apical spines, these rigid; bracts of the involucre 1-5 cm long, spreading more or less horizontally