Jacob's Staff

For the plant known as the ocotillo, sometimes called the Jacob's staff, see ocotillo. The Jacob's staff is also called a cross-staff. Both the terms Jacob's staff and cross-staff are used for several things. This can lead to considerable confusion unless one clarifies the purpose for the object so named. The most frequent uses of the terms are for astronomy and navigation and for surveying.
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Noun
1. desert shrub of southwestern United States and Mexico having slender naked spiny branches that after the rainy season put forth foliage and clusters of red flowers
(synonym) ocotillo, coachwhip, vine cactus, Fouquieria splendens
(hypernym) candlewood
(member-holonym) Fouquieria, genus Fouquieria

[Judaic] This staff, made of a branch of a certain tree, forced the spirits in the vicinity to make themselves visible. At the same time, the powerful radiation from the staff kept them at bay.

ASTA FERRATA [USATA DAI GEOMETRI PER MISURAZIONI]. QUADRANTE (DI GIACOBBE)

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