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Despite that, cannabis is typically classified in the following four categories:
Within the glandular trichomes, there are three main types: bulbous, capitate-sessile and capitate-stalked.
Male plants will produce pollen sacs that at first look like little tiny balls and then grow into larger clusters of oblong-shaped sacs. Conversely, a female weed plant will produce pistils, which in their early stages look like thin hairs and then eventually start growing into more structured ovules and stigmas.
Along with understanding the various parts of a marijuana plant, you should also know about the different types of cannabis. While there are long-held claims about the effects that sativas, indicas, and hybrids offer, current research suggests that the effects of cannabis are determined by a person’s endocannabinoid system and the plant-specific cannabinoid profile.
The thin hairs that extend from a female’s bract to catch male pollen. They are commonly confused with pistils. Knowing how to identify stigmas is an important part of growing weed, as these are the telltale signs that a plant is female and will therefore produce the cannabinoid-rich flowers you’re trying to harvest.
The small leaves that surround the reproductive cells of a female weed plant. When a female plant is exposed to pollen from a male marijuana plant, the bracts surround and shield the seed pod.
Hermaphrodite plants are a rare monecious plant, meaning it develops both male and female sex organs. Hermaphrodites are primarily formed if a female weed plant is exposed to extreme conditions during key stages of growth. Flowers from hermaphrodite plants will be full of seeds, making them very poor quality for consumption. To avoid this, growers must be experts at spotting both hermaphrodite and male plants early and then getting rid of them before they ruin nearby female plants.
The flowers of the female marijuana plant can be identified by their small teardrop structures, which consist of pistils attached to bracts. Cannabis flowers are usually covered with a frosty-looking coating of trichomes, with a heavier density of trichomes making for a more desirable flower.
In either case, once hermaphroditism has compromised the safety and purity of your sensimilla, the plant should not be propagated further. Remember, once a hermy, always a hermy. The plant pictured here is in the tenth and what should have been the final week of ripening, but a timer failed and one light stayed on continuously for almost two weeks, causing this vegetative regrowth. Because the light was continuous, the plant made no pollen. This method of re-vegging can be used to save a flowering plant you have no copies of, but be careful, as this may cause some strains to hermaphrodite.
Light poisoning is the most common cause for a normal plant to hermaphrodite.
Negative stressors can combine with small interruptions of the light cycle to cause hermaphroditism, especially with less-stable, clone-only hybridized strains. When the night cycle is abnormally interrupted, it sends a mixed hormonal signal to the plant. This can cause a full female plant to throw some male flowers. Male flowers are easy to identify, especially when side by side with female flowers. Male flowers look like small bunches of bananas, which will take a week or two to swell before they burst and release their pollen.
Light poisoning refers to the flowering night cycle of a plant being unnaturally interrupted with light. The best way to prevent this is to close yourself inside your darkened room during the daylight, and then after allowing a few minutes for your eyes to adjust to the dark, check for any light leaks from covered windows, door jams, etc. Also cover all timer and appliance lights with tape.
Cannabis plants are monecious. This means they have the ability to be either male or female. Or in the case of hermaphroditism, they can be both. The reason to make sure there are no males or hermaphrodites in your garden is because male flowers make pollen. When pollen touches the white hairs on a flower, it makes a seed, and seeded weed gives you headaches. Even though there are reasons in nature hermaphroditism could be important, such as continuing the species in case there is no male present, hermaphroditism is generally a bad thing when talking about cannabis plants.
Finding a hermaphrodite in your growroom can happen at any stage of the flowering cycle and is indicated by the presence of male flowers growing on the same plant as female flowers. As with all species in nature this can occur in varying degrees. A plant can become slightly or majorly hermaphroditic. In cases where singular male flowers are found between the branch and stalk nodes, you should be diligently removing them as they grow. You must re-inspect the plant top to bottom every few days to be sure pollination and seeding doesn’t occur. If you find male flowers (anthers) actually growing from within the female flowers (buds) the situation is a little more dire. You can still remove all the male anatomy as it appears, but it will be harder to find and much more prevalent. This is a horrible discovery that leads to a tough decision: Should you let the plant live and risk the whole crop being ruined by seeds?
Purposefully causing a plant to hermaphrodite is called selfing. Gibberellic acid or colloidal silver is typically sprayed onto the female plant. This technique is used to make feminized seeds and uses the plant’s ability to be both male and female to force a female plant to produce male flowers. The pollen contained in these male flowers can only produce female seeds. Just keep in mind that feminized plants should not be used for breeding, as they were produced without a true male, making them genetically inferior.