Plutarch, Theseus
Bernadotte Perrin, Ed.

And so in the first place, in Epidauria, when Periphetes, who used a club as his weapon and on this account was called Club-bearer, laid hold of him and tried to stop his progress, he grappled with him and slew him. And being pleased with the club, he took it and made it his weapon and continued to use it, just as Heracles did with the lion's skin. That hero wore the skin to prove how great a wild beast he had mastered, and so Theseus carried the club to show that although it had been vanquished by him, in his own hands it was invincible. [2]

On the Isthmus, too, he slew Sinis the Pine-bender in the very manner in which many men had been destroyed by himself, and he did this without practice or even acquaintance with the monster's device, but showing that valor is superior to all device and practice. Now Sinis had a very beautiful and stately daughter, named Perigune. This daughter took to flight when her father was killed, and Theseus went about in search of her. But she had gone off into a place which abounded greatly in shrubs and rushes and wild asparagus, and with exceeding innocence and childish simplicity was supplicating these plants, as if they understood her, and vowing that if they would hide and save her, she would never trample them down nor burn them. [3] When, however, Theseus called upon her and gave her a pledge that he would treat her honorably and do her no wrong, she came forth, and after consorting with Theseus, bore him Melanippus, and afterwards lived with Deioneus, son of Eurytus the Oechalian, to whom Theseus gave her. From Melanippus the son of Theseus, Ioxus was born, who took part with Ornytus in leading a colony into Caria whence it is ancestral usage with the Ioxids, men and women, not to burn either the asparagus-thorn or the rush, but to revere and honor them.