What people are saying - Write a review
We haven't found any reviews in the usual places.
Discarded Concepts 6 Species in Contemporary Systematics 7
The Species as a Reproductively Isolated Unit 13 Distinction as a Guide
6 other sections not shown
achenes amounts analysis appears attributes basis biological botanical botanists Canada cannabinoid Cannabis sativa Cannabis Volume characters chemical chromosomes classification common concept concerned considerable considered Court cultivated debate defined definition described discussion distinction distinguish domesticated drug evidence examined example existence fact females fibre flower forms frequently fruits genus given groups hemp hybridization important indica individuals interpretation intoxicant issue Italy kinds known legislation less limited male marihuana material mature means morphological narcotic nature nomenclature noted organisms originally particular pattern phenotype plants populations possible present problem produced provides question rank recent recognition recognized reference regarding relatively represent reproductive resin result ruderalis Schultes Science scientific seeds selection separate similar Small species species of Cannabis species problem specimens statute strains Studies TABLE taxonomic taxonomists term tion United University usually variation varieties wild