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Cannabis Plant Anatomy: From The Bottom To The Top

Contents:

  1. Mycorrhizae
  2. Seeds
  3. Roots
  4. Cotyledons
  5. Stem
  6. Branches
  7. Fan leaves
  8. Sugar leaves
  9. Flowers
  10. Calyxes
  11. Pistils and stigmas
  12. Trichomes

Without a doubt, cannabis claims the title as one of the most beautiful plants on Earth—from its glittering trichomes and signature leaves to its complex root system. Many growers frequent their grow rooms just to stand in awe at what grows before them.

Although the flowers get most of the attention—and rightly so—every part of this complex species has a critical and interesting function. As a cultivator, it helps to familiarise yourself with the anatomy of the cannabis plant. In doing so, you’ll develop an eye for what your plant requires, what it needs less of, and when to harvest.

Explore our in-depth guide below to see the cannabis plant like never before.

MYCORRHIZAE

Although not genetically part of the cannabis plant, mycorrhizae form a mutually beneficial relationship with cannabis roots that helps both species survive and thrive. These fungi appear all throughout nature and form a fascinating symbiotic relationship with up to 90% of plant species.

FUNCTION

Mycorrhizal fungi participate in a give-and-take relationship with cannabis plants. These species form networks of thin, hair-like filaments in the soil—known as mycelium—and produce enzymes to break down organic matter.

After liberating nutrients from the substrate, the mycelium uptakes and shuttles them around to plants. Because cannabis roots aren’t capable of this impressive function themselves, they have to “bargain” with the mycelium to access these nutrients. Luckily, plants produce sugars during photosynthesis, and transport many of these molecules down into the roots. Here, they swap these energy-rich exudates for the nutrients they need to fulfil important physiological functions.

Mycorrhizae ultimately act as an extension of the root system. Not only do they break down organic matter to release nutrients, but they also transport these important molecules from areas plants could otherwise not reach. Ultimately, mycorrhizal fungi play a fundamental role in plant nutrition and soil biology and chemistry.

LOCATION

This fusion between plant and fungi occurs in the rhizosphere, or root zone. The mycelium forms a sheath-like structure around the root tip that surrounds plant cells in the root cortex. Threads of hyphae—individual strands of mycelium—extend out into the soil where they break down organic matter and even connect one plant to another, forming a biological internet.

HOW TO BOOST MYCORRHIZAE PRODUCTION

Mycorrhizal fungi exist naturally in many different types of soil. However, there are numerous different species. To make the most of this synergistic relationship, introduce tried and tested mycorrhizal fungi products when planting or transplanting.

Come inside to get to know every aspect of the cannabis plant, from terpene-producing trichomes to photosynthesising fan leaves and everything in between!

Pictures of Marijuana for Parents

Photos in Different Stages of Growth and Use

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John C. Umhau, MD, MPH, CPE is board-certified in addiction medicine and preventative medicine. He is the medical director at Alcohol Recovery Medicine. For over 20 years Dr. Umhau was a senior clinical investigator at the National Institute on Alcohol Abuse and Alcoholism of the National Institutes of Health (NIH).

These pictures show marijuana, also known as cannabis or weed, in varying stages of growth, processing, and use. You may be concerned about plants you find growing in and around your home. Or, you may wonder whether what you discovered in your child’s room is marijuana or indicates your child may be using marijuana.

Even if you live in a jurisdiction where marijuana is legal, there are age restrictions and your child can end up on the wrong side of the law. You should prepare to have a conversation with your child about the risks involved in using or selling marijuana when underage.

Marijuana Plant Growing in a Pot

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Cavan Images, LLC / Taxi / Getty Images

If you find plants around your home that look similar to the marijuana plant in the photo, someone in your household is trying to grow their own weed. The plants have changed considerably in recent decades as they have been bred to produce more buds.

Leaves on a Marijuana Plant

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Gary Morrison / Getty Images

If you see plants like this growing around your home, chances are they did not just pop-up in the wild—they were purposely cultivated. Cannabis plants have a palmate leaf with serrated leaflets. You are likely to recognize them from popular art. While there are plants with similar leaves, the serration pattern for Cannabis is distinctive.

Chopped Up Marijuana Plant

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Steve Cicero / Getty Images

Marijuana is dried and chopped up to prepare it for use and sale. The stems are usually removed.

Marijuana Joints

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Levi Bianco / Getty Images

If your child is using marijuana, you may be likely to find rolled joints of marijuana cigarettes. You may also find rolling papers. Your child may claim that these are hand-rolled tobacco cigarettes, which would also be a concern.

Small Amount of Marijuana Ready for Sale

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Michael Betts / Getty Images

You may find a small amount of marijuana your child has acquired for personal use to smoke. It is probably readily available in your community.

Plastic Bag Full of Marijuana

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Nate Brown / EyeEm / Getty Images

You may also find larger quantities of marijuana in a plastic zip-lock bag. You might find smaller plastic bags with residue inside. This can trigger concerns that your child is transporting or selling marijuana rather than obtaining it for personal use.

Marijuana Bud

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Oksana Smith / EyeEm / Getty Images

Marijuana buds are higher in THC than other parts of the plant and are sold at a premium. As marijuana has been increasingly bred to produce more buds, you may find this type of marijuana in your home. It is probably much more potent than the average street-grade weed.

Close Up of Marijuana Bud

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Michael Thomas / EyeEm / Getty Images

If you look closely at a marijuana bud, you will see the fine “hairs” and leaves that make up the bud after it is dried.

Processed Marijuana Buds

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Sinisa Kukic / Getty Images

If you find a larger quantity of processed marijuana buds in your home, someone either has an expensive habit or they are selling weed to their friends.

Indoor Marijuana Grow Operation

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Jeff Rotman / naturepl.com / Getty Images

If you see this many marijuana plants growing indoors, you have stumbled upon a major indoor marijuana grow operation. Leave the scene immediately and call 9-1-1 if it is not a legal operation.

You Found Some Marijuana, Now What?

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Richard T. Nowitz / Getty Images

First of all, don’t over-react. Before you force your child into a professional drug treatment program that you may not be able to afford and they may not even need, take a step back and try to evaluate the situation.

It may be that your child has experimented with marijuana use or tried it a couple of times with their friends. That happens a lot more these days than it may have happened when you were in school.

Forty-four percent of all students have tried weed by 12th grade according to the National Institutes of Health.   That means that your child probably has friends who are smoking marijuana or at least know someone who is.

Your child’s involvement in marijuana may have just been a passing curiosity, or it may be more than that. Before you react, you need to assess just what your child’s level of involvement is with marijuana.

How do you do that? The best advice available is the simplest—ask your child.

Whether or not adolescents become involved in drugs—or stay involved—may be related to their parents’ attitudes about drug use. Having a matter-of-fact, rational discussion with your child about marijuana may be the best way to approach the situation.

Of course, your child’s use of marijuana may be more involved than simple experimentation, depending on how much of the drug you found. If so, they may not be as willing to talk to you about it. In this case, you will need to educate your child on the legal risks of transporting or selling marijuana.

Parents may want to know what marijuana looks like in all stages of development and use. See photos that can help you check what you find at home.