vigna: genus of vines or erect herbs having trifoliate leaves and yellowish or purplish flowers; of warm or tropical regions; most species often placed in genus Phaseolus
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
mojave rattlesnake: extremely dangerous; most common in areas of scattered scrubby growth; from Mojave Desert to western Texas and into Mexico