taxonID	type	description	language	source
0396B82BB57FFF92FFCDA16D3291F87B.taxon	description	More recently, the term chemovar / chemotype has been applied to cannabis varieties based on cannabinoid levels and profiles: (1) type I (THCA / CBDA >> 1), type II (CBDA / THCA ≈ 1), type III (THCA / CBDA « 1), type IV (cannabigerol (CBGA) - dominant, with very low THC + CBD content), and type V (very low cannabinoid content overall). Types I and II are considered as medical (or drug-type) cannabis, while chemotypes III – V are described as hemp (Hillig and Mahlberg 2004; Pacifico et al. 2006; Schilling et al. 2021). It must be noted that classification based on cannabinoid levels is somewhat misleading. The C. sativa plant is very phenotypically diverse in traits other than cannabinoid levels, including height, leaf shape, photoperiod, and highly variable responses to environmental stimuli (discussed in more detail below). Furthermore, chemotypes do not necessarily constitute a phylogenetic classification based on evolutionary relationship. The dioecy of the plant leads to high levels of heterozygosity even within a single cannabis variety (Clarke and Merlin 2016; Schilling et al. 2021) and, unlike previously assumed, many morphological traits (e. g., leaf shape) do not correlate with phytochemistry (Vergara et al. 2021). Many traits important for plant growth, development, and stress resilience have not been examined in detail. To summarize, the vast amount of C. sativa variants coupled with a lack of defined genetic pedigrees poses a question as to the comparability of studies looking at different lineages. For instance, the literature surveyed here involved no less than 52 different hemp and 35 different medical cannabis varieties, inconsistently defined as cultivars, strains, or chemovars. When directly compared, many varieties display different responses to the same stressor, hinting to vastly different genetics within the species. For consistency, in this manuscript we use the terms “ variety, cultivar, strain, and chemovar ” interchangeably and as they appear in the original cited work. In addition to clearly defining the nomenclature, it may be relevant to consider utilizing a smaller number of standardized and genetically stable varieties in the future to ensure verifiable results that can be systematically applied to larger growth operations.	en	Payment, Josephine, Cvetkovska, Marina Cvetkovska Marina (2023): The responses of Cannabis sativa to environmental stress: a balancing act. Botany 101 (8): 318-332, DOI: 10.1139/cjb-2023-0056, URL: https://doi.org/10.1139/cjb-2023-0056
