Solomon's seal

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A six-pointed star or hexagram supposed to possess mystical powers.
• noun Any of several woodland plants of the genus Polygonatum, having paired greenish-yellow tubular flowers hanging from the leaf axils.

from The Century Dictionary.

• noun A plant of the genus Polygonatum.
• noun A symbol formed of two triangles interlaced or superposed, presenting a six-rayed figure, Compare pentacle.
• noun See Maianthemum.
• noun In Tasmania, the turquoise-berry, Drymophila cyanocarpa. See turquoise-berry.

from the GNU version of the Collaborative International Dictionary of English.

• A mystic symbol consisting of two interlaced triangles forming a star with six points, often with one triangle dark and one light, symbolic of the union of soul and body. It is shaped identically to the hexagram and Star of David, distinguished only in its usage.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A mystic symbol in the form of a hexagram.
• noun Any flowering plant of the genus Polygonatum.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a six-pointed star formed from two equilateral triangles; an emblem symbolizing Judaism
• noun any of several plants of the genus Polygonatum having paired drooping yellowish-green flowers and a thick rootstock with scars shaped like Solomon's seal