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Key to Lachnocaulon

Eriocaulaceae

Lachnocaulon

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© Scott Ward
(c) Horn, Jay
1 Trichomes at the tips of the receptacular bracts milky white, opaque, the head therefore appearing gray to white, obscuring the brown color of the bractlets.
(c) Ward, Scott G
  2 Mature heads 4-7 mm across; seeds obviously longitudinally striate (as seen at 10× magnification); scapes pilose throughout
(c) Horn, Jay - CC-BY
  2 Mature heads 3.5-4 mm across; seeds not obviously longitudinally striate, the striations obscure and very fine (not visible at 10× magnification); scapes glabrous (or nearly so) distally
(c) Horn, Jay
1 Trichomes at the tips of the receptacular bracts translucent, the head therefore showing the brown color of the bractlets.
(c) Horn, Jay
    3 Scape glabrous (or with a few trichomes).
(c) Bridges, Edwin
      4 Leaves 0.5-1 (-2) cm long; head gray or gray-brown, usually globose; carpels 2
(c) Horn, Jay
      4 Leaves 2-3 cm long; head reddish- or dark brown, usually elongate-cylindric; carpels 3