A little rewording.
The kokugos all put the plant first. GG5 only has the plant.

@@ -12,1 +12,2 @@
-<gloss>headdress worn in kyogen to indicate a female character (being played by a man), a white sash tied around the head, with ends hanging down and tucked into belt</gloss>
+<xref type="see" seq="2654360">実葛・さねかずら</xref>
+<gloss>scarlet kadsura (Kadsura japonica)</gloss>
@@ -16,1 +17,1 @@
-<gloss>a type of flower (Kadsura japonica)</gloss>
+<gloss>white sash tied around the head, with ends hanging down and tucked into belt, worn in kyogen to indicate a female character being played by a man</gloss>

大辞林、広辞苑

This is a distinctive item in kyōgen (just used on NHK program tonight); 大辞林 has a good picture.

Hope definition is ok – it’s a bit intricate to describe, b/c it’s so unfamiliar (I’ve omitted minor details, like the knob/horn-like bits at the top).

I wonder if the 葛（かずら） is a corruption/respelling of 鬘 “headdress, wig”, which makes more sense etymologically.