Dr Grinspoon   Named in honor of our hero, the brilliant cannabis advocate, researcher and author Dr. Lester Grinspoon, this is a pure heirloom Sativa.   The plant grows thin and tall, and requires a longer flowering time.   When mature, the colas look like compact, green and red-brown beads, loosely strung on thin stems with a dusting of THC crystals.   The fragrance off the buds is of sumac and lemon; the smoke is light and tangy with citrus and tropical fruit aromas.   Dr. Grins