Browse any Canadian kratom vendor's product page in 2026 and you'll see the same vocabulary used in slightly different ways across sites. "Strain", "vein", "blend", "kapuas", "white maeng da", "bali" — the terms aren't standardized across the industry, and Canadian buyers often arrive at our customer inbox asking what these words actually mean. This article is a plain-language glossary built for Canadian buyers in 2026. It is botanical reference only. We don't make claims about what kratom does, and we don't recommend any specific strain or blend for any purpose.
The botanical baseline
Kratom is the common name for the leaves of Mitragyna speciosa, an evergreen tree in the coffee family native to Southeast Asia (primarily Indonesia, Thailand, and Malaysia). The leaves contain alkaloids — most notably mitragynine and 7-hydroxymitragynine — which are what kratom-related testing measures and reports.
Everything else in this glossary is a way of describing leaves from this single plant: where they grew, how they were harvested, how they were dried, how they were processed, and how they were combined.
Vein colour
The most commonly discussed attribute. Vein colour refers to the colour of the central vein on the kratom leaf when it is harvested. There are three main categories you'll see on Canadian vendor sites:
- Red vein. Leaves harvested with red central veins. Typically considered fully mature.
- Green vein. Mid-stage leaves. Veins are green when harvested.
- White vein. Younger leaves. Veins are paler.
Some vendors also list "yellow vein" — this is generally not a natural fourth colour but rather the result of specific drying or fermentation processes. We don't currently sell a yellow vein product.
Important note: vein colour is not a promise about effect. It's a description of the leaf's appearance at harvest. We don't make claims that any one vein colour does any particular thing.
Strain names
This is where the vocabulary gets messy. "Strain" in kratom marketing is loosely used to indicate either geographic origin (Bali, Borneo, Sumatra, Thai), or a specific cultivar name (Maeng Da, Horn), or a processing style. There are no enforced standards across vendors. A "Red Bali" from one Canadian vendor is not chemically identical to a "Red Bali" from another.
Common Canadian-market strain names you'll encounter:
- Maeng Da. Originally a Thai colloquial term. In modern usage, often refers to higher-alkaloid leaves.
- Bali. Refers to a processing or marketing style, not necessarily literal origin from Bali.
- Borneo. Often associated with leaves from Indonesian Borneo (Kalimantan).
- Sumatra. Indonesian Sumatra origin.
- Indo. Generic "Indonesian" — the broadest category.
- Horn. Refers to a specific leaf shape (pointed tip), not origin.
Blends
A blend is a recipe combination of two or more vein colours or strain types, mixed at a defined ratio. Blends are usually given proprietary names by the vendor. Our five signature blends — CLARITY, GOODNIGHT, UPLIFT, RELAX, SUNRISE — are recipe combinations whose names function as recipe identifiers. The blend name tells you which combination of vein colours and mesh sizes went into the bag. It does not tell you what the kratom will do for you.
Mesh size
Mesh size describes how finely the dried leaf has been ground. "Fine mesh" is closer to a flour-like powder; "coarse mesh" is closer to ground-pepper texture. Mesh affects brewing time, strainer compatibility, and aroma intensity. We ship in a consistent fine-to-medium mesh suited for tea brewing or toss-and-wash.
Alkaloids
The two most-discussed alkaloids in kratom are mitragynine (the dominant alkaloid by mass in most leaves) and 7-hydroxymitragynine (often abbreviated 7-HMG, present in much smaller quantities). A COA — Certificate of Analysis — reports these as percentages or parts-per-million depending on the lab. There are more than 30 known alkaloids in kratom; most are present in trace amounts.
COA and lab tests
A COA is the document a third-party lab issues after testing a batch of kratom. A complete COA typically reports:
- Mitragynine and 7-HMG content (alkaloid profile)
- Heavy metals (lead, arsenic, mercury, cadmium)
- Microbial counts (yeast, mould, total plate count, sometimes Salmonella and E. coli)
- Pesticide residue
Some COAs also report solvent residue and other contaminants. Canadian buyers in 2026 increasingly ask vendors for the full COA before ordering. We publish ours on the Lab Reports page.
Batch number
A unique identifier printed on every bag that links to a specific COA. If you have two bags of the same blend and they have different batch numbers, they were tested separately and have their own alkaloid profiles. This matters more than the blend name when you care about consistency.
Bundle vs single bag
A "bundle" is a multi-bag offer at a packaged price. Our bundles include Mini (5×25g), Medium (4×100g), and Maximum (4×250g). Single bags are sold per blend per weight.
Words that don't mean what they sound like
A few terms you'll see in Canadian kratom marketing that buyers should approach with caution:
- "Organic." There is no certified-organic standard for kratom in Canada. Anyone using the word is using it loosely.
- "Pure." All raw single-vein kratom powder is "pure" in the sense of being unblended. The word adds nothing.
- "Premium." Marketing language. Without a lab report, it means nothing.
- "Wild-harvested." Sometimes accurate, often unverifiable.
The most useful term for Canadian buyers in 2026 to look for is "lab-tested" — and even that only matters if the vendor will show you the actual COA.
What this glossary is and isn't
This is botanical and commercial vocabulary, not health information. None of these terms imply that kratom does anything specific for the buyer. Canadian regulations around kratom are nuanced; buyers should consult Health Canada directly for current regulatory context. Our role is to be transparent about what's in the bag, where it came from, and what the lab report says.
