The note unfolds with a profound, multifaceted earthiness, immediately announcing its presence with a dry, rooty tenacity. It is far from simple, presenting a complex tapestry woven with nuances of damp soil after a summer rain, green tendrils pushing through loam, and a distinct, almost caramelized sweetness that sets it apart from its Haitian or Javanese brethren. There's an initial sharpness, a crisp, almost mineralic quality that swiftly mellows into a velvety, woody richness. It possesses a smoky undertone, akin to embers smoldering, but it is a gentle, sophisticated smoke, not acrid or overtly assertive. Texturally, it evokes the sensation of finely milled earth, simultaneously dry and rich, with an oily depth that speaks to its longevity. Its projection is moderate to strong initially, settling into an intimate, sophisticated aura. As a true base note, it is incredibly long-lasting, often perceptible for many hours, sometimes days, on fabric, evolving to reveal a subtle, almost nutty, ambery warmth over time. The 'Bourbon' designation specifically hints at a rounder, slightly sweeter, more refined profile, less starkly smoky or grapegruit-like than some other vetiver varieties, offering a smooth, almost liquor-like warmth in its deepest drydown.