Penstemon digitalis which repeat with two flowers multiple times. The pedicels are almost one fourth of an inch long and produce 1.25 inch long two-lipped tubular flowers over dark green foliage. The plant has elliptic basal leaves and lance-shaped to oblong stem leaves. It is called beardtongue because the plant has a fifth stamen which resembles a hairy beard due to having small hairs. "Penstemon" is a combination of the Greek words, "penta", "five" and "stemon", referring to the stamen, every flower containing five stamens. Four of the stamens are fertile while the fifth one is sterile. The Latin word "digitalis" means
Recreational drug use part of the milieu of drug taking. The reasons for drug use appear to have as much to do with needs for friendship, pleasure and status as they do with unhappiness or poverty. Becoming a drug taker, to many people, is a positive affirmation rather than a negative experience.” Anthropological research has suggested that humans "may have evolved to counter-exploit plant neurotoxins". The ability to use botanical chemicals to serve the function of endogenous neurotransmitters may have improved survival rates, conferring an evolutionary advantage. A typically restrictive prehistoric diet may have emphasised the apparent benefit of consuming psychoactive drugs, which