nicotiana tobacco seeds tabacum, 7580 days to maturity 'Sensation Mix' Flowering Tobacco Seeds
Description
While nicotine is flushed within 3 days, its metabolite cotinine can remain detectable in blood, saliva, or urine for up to 10 days or more, especially with heavy or frequent use

Every trace must be removed to keep you safe

UPDATE - July, 2019: I want to say that with proper preparation and good smoking technique -particularly in a pipe you know well, it is entirely possible to smoke this straight down to the heel with fewer than three relights and often with none at all

1 2 "Review: In 'Topdog/Underdog,' Staying Alive Is the Ultimate Hustle"

Here are two things I didn't know, or hadn't considered, or both: 1

I had to monitor the stations to determine their degree of compliance, but, of course, the monitoring I could do was limited
