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 Lachnocaulon

Eriocaulaceae

Lachnocaulon

Copy permalink to share

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.

© Scott Ward
(c) Horn, Jay
  2
Mature heads 4-7 mm across; seeds obviously longitudinally striate (as seen at 10× magnification); scapes pilose throughout
 ⇒ Lachnocaulon anceps

(c) Ward, Scott G
  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
 ⇒ Lachnocaulon beyrichianum

(c) Horn, Jay - CC-BY
1
Trichomes at the tips of the receptacular bracts translucent, the head therefore showing the brown color of the bractlets.

(c) Horn, Jay

(c) Horn, Jay
  3
Scape glabrous (or with a few trichomes).

(c) Horn, Jay
    4
Leaves 0.5-1 (-2) cm long; head gray or gray-brown, usually globose; carpels 2
 ⇒ Lachnocaulon digynum

(c) Bridges, Edwin
    4
Leaves 2-3 cm long; head reddish- or dark brown, usually elongate-cylindric; carpels 3
 ⇒ Lachnocaulon engleri

(c) Horn, Jay