Just found this:

here is the info about p91<
it is from the princess strains, it was origanally grown from the government.
100%sativa
the real name is princess 75, the street name in california is p91

Heres the facts.
The seeds were found only in the deepest part of the buds indicating that the father was an unusually early-maturing JH that the growers missed at first.

Princess smells very much like pineapple both during flowering and when dried, but there's this "evil" scent in it too, like rotting meat, which has been linked with the most devastating weed (notably the Durban/Thai hybrid from SSSC, years ago).

The taste is connoisseur quality when it's cured; VERY fruity. The high is almost too intense for a lot of people. Dr. atomic actually refused to smoke any on our second meeting, after getting rather "hazed and confused" on the first sampling we did together a couple of weeks before, so he decided to try Shiva Skunk and found that more mellow and to his liking.

Two hits of Princess will induce your body to tremble involuntarily and your heart to race and paranoid thoughts...very much like Haze, but not quite as intense. It also has a "creeper" quality that makes it easy to over-indulge...you get progressively higher during the first 10 minutes after smoking. Look at the May '98 issue of High Times' centerfold and find "Yellow Cab"...that's EXACTLY what the finished Princess buds look like.

The "frosting" of stalked, capitate trichomes on the flowers and smaller leaves gives them a "furry" appearance much like Haze.
Princess grows vigorously, and is rapidly maturing...6 to 7 weeks of 12/12. It feeds heavily and requires about 50% stronger nutrient solution than an Indica does.

This strain is exactly what most people believe doesn't exist; a Sativa which grows VERY well indoors, stays short, and matures as rapidly as an Indica (faster than many), and has the great KILLER Sativa high/flavor. The yield is fine too. Mr Soul finds that the Indica strains are too leafy/stalky and much goes to waste with them, whereas Princess has an extremely high flower/leaf ratio and therefore almost no waste.