St. Andrew's cross
a cross composed of four diagonal arms of equal length; saltire. See illus. under cross.
St. An•drew's-crossPronunciation: (an'drOOz-krôs', -kros'), [key]
a low evergreen shrub, Ascyrum hypericoides,
native to temperate and subtropical America, having flowers in clusters of three: often cultivated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.