Liatris

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  L. novae-angliae

  1a. Capitula borne mostly on short peduncles 10–50 mm long, with (21–) 25–80 flowers 
 [Fig. 431]; disk flowers longer than 11 mm, pubescent adaxially (i.e., inside) near the base of 
the connate tube; involucre 9–17 mm tall
• See list of 2 species in 1b
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  1b. Capitula ± sessile, with 5–10 (–14) flowers; disk flowers 7–11 mm long, glabrous adaxially; involucre 7–11 mm tall
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    L. spicata

    2a. Outer involucral bracts obtuse to rounded at apex, erect; axis of capitulescence 
usually glabrous
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    L. pycnostachya

    2b. Outer involucral bracts acute to short-acuminate at apex, squarrose; axis of capitulescence usually hirsute

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 Show photos of:   Each photo represents one species in this genus.