Source : Webster's Revised Unabridged Dictionary (1913)

Assurgent \As*sur"gent\, a. [L. assurgens, p. pr. of assurgere;
   ad + surgere to rise.]
   Ascending; (Bot.) rising obliquely; curving upward. --Gray.

Source : WordNet®

assurgent
     adj 1: rising from the sea; "a seahorse assurgent"
     2: growing or extending upward; "an assurgent stem or leaf"