From the ancient source text:

"The only data I could gather on the Crocust is that it has a particular smell that seems to create the illusion of olfactorial sense rather than have an odor of its own."

Moderns have more extensive access to a wide array of botanical information and available uses due to centuries of successful alchemical experimentation. The Crocust plant may not have been native to the St. Montaigne Delta, having arrived during the Second Montaignean Migration, shortly after 250 B.E.D (this author refuses to use any modern nomenclature as an affront to the Gods and the Naturale Sciences we divine from them!), and the earliest recordings of observations occurred several centuries later. The plant was most notable for creating the illusion of scent, rather than having its own order. This was amusing to many, particularly children, in the region, while largely considered a harmless wilde plantte largely left to grow as the Gods pleased. It's cultivation may have occurred in small garden plots adjacent to commons in the various farming villages in the greater expanses of certain experimental duchies, but it was never cultivated or grown on a mass scale.

As other scholars more learned in horticultural and alchemical studies have duly noted, the potent alignment between the crocust and another substance, the Flouncing Kombitoulous created a burgeoning drug trade that triggered the Niallin War after The Banishment of Twaliz One complicated extensively by the relative abundance of crocust and the relative inabundance of Flouncing Kombitoulus. The wild crocust, once known for childhood games and small garden cultivation largely enjoyed by widows (with no man in their life, the occasional illusion of a manly scent from a crocust was a well known home made remedy for loneliness and the vapors), was now being seized by the authorities to prevent the proliferation of the pernicious drug trade. Some degenerate duchies like Lacessa and Twaliz (before its just disappearance) tacked a different route. Twaliz decriminalized the trade after it became overwhelmed by drug usage, and largely turned the other way as cartels operated inside its once sacralized borders. Lacessa took this damnability one step further and actively legalized and taxed a government sanctioned monopoly on the substances. The established duchies wanted no part in this trade and sought to prevent this drug from reaching them, and decided to take action trigerring the Niallin War. The story of that warre is a story for another day, and another snifter of Laccessan Brandy, but for now simply that no widow before the war would have guessed how their little secret plantte transformed regional power politics and international diplomacy, but that there would be many widows after the war to set them right.