Jacob's Staff Definition

noun

A single straight rod or staff, pointed and iron-shod at the bottom, for penetrating the ground, and having a socket joint at the top, used, instead of a tripod, for supporting a compass.

Wiktionary

Verbascum thapsus , the common mullein .

Wiktionary

The ocotillo , one of Fouquieria Fouquieria , a genus of desert shrubs of southwestern United States and Mexico having slender naked spiny branches that after the rainy season put forth foliage and clusters of red flowers.

Wiktionary