jacob's staff

/'dʤeikəbz'stɑ:f/
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jacob's staff

A hiker uses a Jacob's staff to navigate the arid landscape.

Definition
  1. Noun:
    • A desert shrub: A spiny desert shrub (Fouquieria splendens) native to the southwestern United States and Mexico, characterized by slender, bare, spiny branches that produce leaves and clusters of red flowers following seasonal rains. This is the primary botanical meaning.
    • A historical surveying instrument: A single-legged instrument, also known as a cross-staff, used historically for measuring angles in astronomy, navigation, and surveying. This meaning is derived from the name of the biblical patriarch Jacob.
Usage Examples
  • Noun (Botanical):
    • The arid landscape was dotted with the stark, vertical forms of Jacob's staff.
    • After the rare desert rain, the Jacob's staff burst into vibrant red blooms.
  • Noun (Historical Instrument):
    • The navigator used a Jacob's staff to measure the angle of the sun above the horizon.
    • Before the invention of the theodolite, surveyors relied on tools like the Jacob's staff.
Advanced Usage
  • "To be as barren as a Jacob's staff": A simile describing something as utterly dry, unproductive, or lifeless, drawing from the plant's desert habitat.
    • During the drought, the fields were as barren as a Jacob's staff.
Variants and Related Words
  • Ocotillo: The more common name for the desert shrub .
  • Cross-staff: A direct synonym for the historical measuring instrument.
  • Fouquieria: The botanical genus name for the plant.
Synonyms
  • For the plant: Ocotillo, coachwhip, vine cactus.
  • For the instrument: Cross-staff, fore-staff, balestilha.
Related Phrases
  • "To plant one's staff": An idiom meaning to settle or take a stand, which shares the symbolic concept of a staff but is not directly derived from "Jacob's staff."
    • The explorer decided to plant his staff and build a home in the valley.
Related Idioms
  • None directly associated: There are no common idioms that specifically use the term "Jacob's staff." Its usage is largely technical (botanical/historical).
jacob's staff

A hiker uses a Jacob's staff to navigate the arid landscape.

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

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