glochid or glochidium: small barbed hair (modified spine) found only on members (like prickly-pears and chollas) of the cactus subfamily Opuntioideae.
spine: a modified, sharp, pointed leaf Glochids or glochidia, which grow in tufts, are prominently visible (and felt) by gardeners weeding or otherwise working around prickly-pear cactus.
Our gardens may lay mostly dormant in this season, but still there are some herbaceous and woody plants with color, form, and texture that can both surprise and delight in the winter landscape.