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Beyond indica and sativa: the five-class spectrum
Three boxes cannot hold the whole menu. Planet 13 grades cannabis on a five-class spectrum, indica, indica-hybrid, hybrid, sativa-hybrid, sativa, and grades every batch by its own lab results, not by the name on the jar.
The honest part first
Indica and sativa are a retail convention, not a chemical taxonomy. Modern cannabis science treats the old categories as historical: on a genetic level the two are not cleanly distinct, and the labels work as a rough cultural shorthand for aroma and expected character, not as a scientific classification. Shoppers still use the words, and they are still useful, as long as you read them as a prediction of character, never a promise.
Why five classes instead of three
Most cannabis on any modern menu lands somewhere in the middle. A three-class scheme collapses that whole middle into one undifferentiated "hybrid" shelf, which throws away exactly the information you shop by. The two lean classes, indica-hybrid and sativa-hybrid, restore that resolution: a hybrid with a clear relaxing tilt and a hybrid with a clear lively tilt are different purchases, and the spectrum says so.
Graded per batch, not per name
Here is the part that makes the system trustworthy: the class is computed from each batch's own lab terpene panel, not inherited from the strain's reputation. The same strain grown, harvested, and cured at different times can test differently, so two jars with the same name can sit at different points on the spectrum. The label on the shelf reflects what is actually in that jar.
What moves the needle
The grading reads the terpenes the lab measured and weighs the ones that carry a direction in retail convention. Myrcene and linalool, the earthy-musky and lavender-floral terpenes, pull a profile toward the indica end. Limonene, pinene, and terpinolene, the citrus, pine, and bright-herbal terpenes, pull toward sativa. Caryophyllene and humulene show up in almost everything, so they are deliberately left out of the lean math; counting them would drag every result toward the middle.
The most-quoted rule of thumb in the trade is that a myrcene-forward profile reads as indica. Honest caveat, straight from the chemistry literature: myrcene levels vary widely and do not correlate cleanly with how a plant was labeled, which is exactly why the spectrum should be read as a predicted-effect convention rather than a lab-proven effect guarantee. Your own chemistry, tolerance, and setting do plenty of the deciding.
How to use it on the menu
Start with the class to narrow the shelf, then read the terpene panel to pick within it. Two indica-hybrids with the same THC can smell and feel different because their terpene mixes differ; the spectrum gets you to the right neighborhood, the panel picks the house.
Effect descriptions reflect common retail associations, not medical claims. Individual experiences vary. For use only by adults 21 and older.