Mindblown: a blog about philosophy.

Minute coiled threads in some seed coats that uncoil when moistened.  

(Of organ arrangement) in a spiral or ascending coil along an axis; for example, leaves on a stem with one (alternate) leaf per node.  

(Of pollen exine) with small spines.  

A very small spine.  

With spines. Like a spine or thorn in shape; having spines.  

With spines (mostly used for leaf margin). With a spine at the tip. Thorny.  

Horny pad from which the spines stick out (e.g. in Euphorbia) [unusual term].  

± spiny, ending in a sharp point. Degenerating into a thorn.