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Andrew Novak — Reviewed writer, former magazine editor
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How to Understand the Difference Between Hemp and Marijuana Buds

To the untrained eye, hemp and marijuana buds look nearly identical because they both belong to the Cannabis sativa family. However, the primary difference lies in the chemical composition—specifically the concentration of Tetrahydrocannabinol (THC). Understanding the difference between hemp and marijuana buds is essential for legal compliance and ensuring you get the specific effects you desire, whether it is the therapeutic calm of CBD or the psychoactive high of THC.

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Part 1

Examining Physical Characteristics

1

Look for a light shade of red or purple to find hemp buds.

Look for a light shade of red or purple to find hemp buds.
While both hemp buds and marijuana buds are primarily green, hemp buds can often have a shade of red or light purple mixed in. Dark purple buds are more likely to be marijuana.
  • While both hemp buds and marijuana buds are primarily green, hemp buds can often have a shade of red or light purple mixed in.
  • Dark purple buds are more likely to be marijuana.
  • While both hemp buds and marijuana buds are primarily green, hemp buds can often have a shade of red or light purple mixed in.
  • Dark purple buds are more likely to be marijuana.
  • While both hemp buds and marijuana buds are primarily green, hemp buds can often have a shade of red or light purple mixed in.
2

Check to see if the buds have small, crystallized hairs on them.

Check to see if the buds have small, crystallized hairs on them.
Trichomes are the small crystallized hairs that grow on the outside of the cannabis flowers. Sometimes you can see them with the naked eye, but other times, you’ll need a magnifying glass to really zoom in. If there are a lot of trichomes on the buds or they have a frosty look to them, there’s a good chance that the buds are hemp.
  • Trichomes are the small crystallized hairs that grow on the outside of the cannabis flowers.
  • Sometimes you can see them with the naked eye, but other times, you’ll need a magnifying glass to really zoom in.
  • If there are a lot of trichomes on the buds or they have a frosty look to them, there’s a good chance that the buds are hemp.
  • Trichomes are the small crystallized hairs that grow on the outside of the cannabis flowers.
  • Sometimes you can see them with the naked eye, but other times, you’ll need a magnifying glass to really zoom in.
3

Find skinny leaves growing on the cannabis plant.

Find skinny leaves growing on the cannabis plant.
If you can see the plant that the buds grew on, look for the typical marijuana leaves with 5 to 9 clustered leaflets, only skinnier. If they’re thin, spindly, and serrated, chances are that you’re looking at a hemp plant.
  • If you can see the plant that the buds grew on, look for the typical marijuana leaves with 5 to 9 clustered leaflets, only skinnier.
  • If they’re thin, spindly, and serrated, chances are that you’re looking at a hemp plant.
  • If you can see the plant that the buds grew on, look for the typical marijuana leaves with 5 to 9 clustered leaflets, only skinnier.
  • If they’re thin, spindly, and serrated, chances are that you’re looking at a hemp plant.
  • If you can see the plant that the buds grew on, look for the typical marijuana leaves with 5 to 9 clustered leaflets, only skinnier.
4

Look for fewer branches or leaves below the top part of the plant.

Look for fewer branches or leaves below the top part of the plant.
While marijuana plants will grow into a bush or shrub shape, hemp plants often keep their branches and leaves near the top 1/3 of the plant. If most of the leaves are clustered near the top part of the plant, there’s a good chance that it’s a hemp plant.
  • While marijuana plants will grow into a bush or shrub shape, hemp plants often keep their branches and leaves near the top 1/3 of the plant.
  • If most of the leaves are clustered near the top part of the plant, there’s a good chance that it’s a hemp plant.
  • While marijuana plants will grow into a bush or shrub shape, hemp plants often keep their branches and leaves near the top 1/3 of the plant.
  • If most of the leaves are clustered near the top part of the plant, there’s a good chance that it’s a hemp plant.
  • While marijuana plants will grow into a bush or shrub shape, hemp plants often keep their branches and leaves near the top 1/3 of the plant.
5

Assume that the plant is hemp if it’s around 20 feet (6.1 m) tall.

Assume that the plant is hemp if it’s around 20 feet (6.1 m) tall.
Since most marijuana plants grow into a shrub shape, they’re usually shorter and closer to the ground. If the plant is around 20 feet (6.1 m) tall, it could be a hemp plant, since they tend to have longer stalks and deeper roots.
  • Since most marijuana plants grow into a shrub shape, they’re usually shorter and closer to the ground.
  • If the plant is around 20 feet (6.1 m) tall, it could be a hemp plant, since they tend to have longer stalks and deeper roots.
  • Since most marijuana plants grow into a shrub shape, they’re usually shorter and closer to the ground.
  • If the plant is around 20 feet (6.1 m) tall, it could be a hemp plant, since they tend to have longer stalks and deeper roots.
  • Since most marijuana plants grow into a shrub shape, they’re usually shorter and closer to the ground.
Part 2

Looking at Chemical Composition

1

Look for CBD products to indicate hemp buds.

Look for CBD products to indicate hemp buds.
While marijuana buds are primarily smoked or eaten, hemp buds are usually used in skin and body care, textiles, paper construction, and supplements. While some of these products can contain marijuana buds, they often contain hemp buds because of the high CBD content.
  • While marijuana buds are primarily smoked or eaten, hemp buds are usually used in skin and body care, textiles, paper construction, and supplements.
  • While some of these products can contain marijuana buds, they often contain hemp buds because of the high CBD content.
  • While marijuana buds are primarily smoked or eaten, hemp buds are usually used in skin and body care, textiles, paper construction, and supplements.
  • While some of these products can contain marijuana buds, they often contain hemp buds because of the high CBD content.
  • While marijuana buds are primarily smoked or eaten, hemp buds are usually used in skin and body care, textiles, paper construction, and supplements.
2

Ask about the THC content to see if they’re hemp buds.

Ask about the THC content to see if they’re hemp buds.
If you’re at a dispensary or a grower, ask the seller about the THC content of the buds. If they have less than 0.3% THC in them, they’re technically hemp buds. Tony Robinson CBD expert Expert Interview
  • If you’re at a dispensary or a grower, ask the seller about the THC content of the buds.
  • If they have less than 0.3% THC in them, they’re technically hemp buds.
  • Tony Robinson CBD expert Expert Interview
  • If you’re at a dispensary or a grower, ask the seller about the THC content of the buds.
  • If they have less than 0.3% THC in them, they’re technically hemp buds.
3

Clarify if there’s a high amount of CBD in the buds.

Clarify if there’s a high amount of CBD in the buds.
Along with a low amount of THC, hemp buds also usually have a high CBD content. If there’s 20% or more CBD in the buds, they’re probably hemp buds. Tony Robinson CBD expert Expert Interview
  • Along with a low amount of THC, hemp buds also usually have a high CBD content.
  • If there’s 20% or more CBD in the buds, they’re probably hemp buds.
  • Tony Robinson CBD expert Expert Interview
  • Along with a low amount of THC, hemp buds also usually have a high CBD content.
  • If there’s 20% or more CBD in the buds, they’re probably hemp buds.
4

Send the buds to a lab to get the chemical content tested.

Send the buds to a lab to get the chemical content tested.
Tony Robinson CBD expert Expert Interview Unfortunately, the only surefire way to know whether your buds are hemp or marijuana buds is to have their THC and CBD content tested. Get in contact with a marijuana testing lab and send them a sample of your buds to see what the chemical composition is. If they contain less than 0.3% THC, then they are definitely hemp buds. Tony Robinson CBD expert Expert Interview
  • Tony Robinson CBD expert Expert Interview Unfortunately, the only surefire way to know whether your buds are hemp or marijuana buds is to have their THC and CBD content tested.
  • Get in contact with a marijuana testing lab and send them a sample of your buds to see what the chemical composition is.
  • If they contain less than 0.3% THC, then they are definitely hemp buds.
  • Tony Robinson CBD expert Expert Interview
  • Tony Robinson CBD expert Expert Interview Unfortunately, the only surefire way to know whether your buds are hemp or marijuana buds is to have their THC and CBD content tested.

Community Q&A

Q Can you tell the difference between hemp and marijuana just by looking at them?

A Generally, no. While some industrial hemp looks different, high-quality hemp buds (CBD flower) are visually indistinguishable from marijuana buds.

Q Will hemp buds make me feel high?

A No. Because hemp contains less than 0.3% THC, it does not produce the psychoactive 'high' associated with marijuana.

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