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Cannabis calyx seed

Little (very tiny) hard shelled thing inside each individual calyx.. what are these?

Yep, I’m an experienced grower.. not a professional though.. so yeah, I’m wanting to know what are these tiny little things that reside inside each little individual calyx. It almost looks like a seed.. but its nowhere near the size of a seed. nowhere near it.

If I had to compare it to something to give you an idea of how small these things are.. I would have to say that they’re not bigger than the tip of a ballpoint pen. Actually, they’re a little smaller than that even.

I looked at one underneath my microscope.. magnified it at 50x and it almost looks like a seed.. but like I said.. the size is throwing me off because they’re so freaking small!! I tried taking a picture of one.. but they’re just too small to focus on with my current camera.

Are these terpenes?? Or.. what?

just some guy
Well-Known Member
Well-Known Member

ahhhh alrighty then. Thanks for that.. I was really thinking that it HAD to be a seed.. I just didn’t realize how small they were when they’re that premature.

Thats what was throwing me off.. making me second guess as to what they were. Even though I knew it was a seed.. the rediculus small size just threw me off as I’ve never seen a seed that small before.. wow.

Learned something new today!

thanks for the help ppl.

benny blanco
Active Member

Does it look like a tiny lima bean? Smaller than an ant? I had those and I was trippin out but it wasn’t a seed. I only had one or two though


I just chopped a Dinafem Roadrunner an hour ago, and had the same dang thing. I feel like an idiot b/c I didn’t notice. It looked like all the fem plants I have grown before. I had a scrog in a PC case (about 6 inches tall, but growing about 18 inches sideways), so it was hard to see under the canopy.

Fuck, is this going to really hurt the potency? I could really use a pick me up. I feel awful — like I want to puke.

I grow only 2-3 plants per year for personal consumption and I have really learned a lot over the past two years. Except for the tiny white seeds, this was by far the healthiest, frostiest, possibly highest yielding grow I have done (first time I scrogged).

Is all the frosty resin going to be downgraded b/c of the herm?

Other notes: I grow organic hydro, hempy style in perlite. The grow went 65 days from seed to chop. I chopped when all the hairs turned red. 24/7 light schedule.


A calyx is an important part of a plant that is essential to protecting the flower during its development. The calyx of a flower is made up of individual structures that look like leaves, each of which is known as a sepal. These sepals form the outer cover of the flower’s bud as it begins to form before it blooms. After the flower has bloomed, the calyx will usually appear as several small leaves growing from the stem at the flower’s base.

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In cannabis cultivation, the calyx, or calyxes (plural), is important for another reason—it contains high concentrations of resin.

A calyx may also be known as a calyce.

Calyx of a cannabis flower.

Maximum Yield Explains Calyx

The calyx is the very first thing to develop when a flower starts to form. After the calyx has developed, it creates a protective exterior for the flower, and the budding petals will begin to form inside of it. For better protection, the calyx’s sepals are often formed in a pattern that alternates with the petals of the flower. While it is still forming, though, the sepals create a tight enclosure that will not open until the petals and the other parts of the flower are fully formed.

At the point that the flower is fully formed and ready to bloom, the sepals will begin to open and peel back away from the petals. In most cases, the sepals are much smaller than the petals of the flower, and they will not continue to grow or use the plant’s nutrients or water after the flower has bloomed.

Within the cannabis calyx, you will find all of the important reproductive organs, including the pistil and stigmas. You’ll also find resin glands, which are responsible for producing cannabinoids, including THC.

Depending on the plant, the calyx may dry up and harden as the flower ages, or they may continue to look green and healthy. For example, a rose’s calyx is made up of small sepals that will hang away from the flower as it blooms. On the other hand, a strawberry blossom’s calyx will continue to have leafy green sepals even after the flower has died and the strawberry has formed and ripened.

In a mature female plant, the calyx will grow, and eventually open to expose the pistils, which look like long, white hairs. In a male, this does not occur. Instead, the buds droop down and form pollen.

The Cannabis Female Flower

In the cannabis industry, the general terms—bud, cola, nug— are easy enough and universally accepted, but when discussing specific plant parts with botanical terms, confusion reigns.

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Foremost are the incorrect uses of calyx and pistil. Growers read or hear about swollen calyxes being a sign of maturity and an indication of readiness for harvesting. What are incorrectly called calyxes or false calyxes are correctly identified as bracts.

Cannabis female flowers do have calyx cells, but not a defined calyx. The female cannabis calyx cells are one part of the perianth, a nearly transparent, delicate tissue that partially encloses the ovule (prospective seed).

Each female flower has a single ovule, which is encapsulated by bracteoles and bracts. The bracts and bracteoles are small, modified leaves that enclose and protect the seed in what some growers refer to as the seed pod.

The bracts have the densest covering of capitate-stalked resin glands of any plant part, and it is within the heads of these resin glands that the plant synthesizes and holds the highest concentrations of cannabinoids and terpenes of any plant part. Bracts make up most of the substance and weight of high-quality marijuana buds.

By definition, a perianth consists of a corolla and a calyx. In more familiar showy flowers, the corolla is the brightly colored petals we generally appreciate when looking at flowers, and the calyx is the smaller green cup (sepals) holding the petals at the flower’s base.

Bright showy colors, large flower sizes, and enticing fragrances evolved to attract insects such as bees and flies, or animals such as birds and bats to collect and transfer pollen (unintentionally) to other flowers.

Cannabis flowers are not brightly colored, large, or enticingly fragrant (at least to most non-humans); marijuana plants are wind-pollinated with no need to attract insects or animals to carry the males’ pollen, hence these plant parts never evolved into significant, attractive, or showy parts.

Each female marijuana flower has two stigmas that protrude from a single ovule; they are “fuzzy” (hirsute), about ¼ to ½ inch long, usually white, but sometimes yellowish, or pink to red and, occasionally, lavender to purple.

Stigmas are the pollen catchers. Some writers identify stigmas as pistils, and this too is incorrect. The pistil is all of the reproductive female flower parts. The Cannabis pistil consists of two stigmas and an ovule (prospective seed). The term is misused in many books and seed catalogs that describe a single Cannabis flower as having two pistils.

If a flower is pollinated, the ovule becomes a single fruit, essentially a single seed, an achene. The perianth tightly clasps the seed and usually contains tannins, which give mature seeds their markings or spotted coat. Between a thumb and finger you can rub the perianth off of a seed.

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A well-pollinated typical bud develops from 50 to 150 seeds, a cola easily holds many hundreds, and even a small, but thoroughly pollinated female can bear thousands of seeds.

Cannabis has six kinds of trichomes: three are non-glandular and three are glandular and resin-bearing. Cystolith hairs are the most visible of the non-glandular as these needle-like “hairs” prominently cover all of the above-ground plant parts: stems, branches, leaves, petioles and flowers.

The other two non-glandular trichomes are visible with magnification. These smaller cystolith hairs with warty bumps and teardrop-shaped trichomes are found mainly on the underside of leaves. The larger cystolith hairs provide defense against insects and likely make the plant less palatable to animals. Cystolith hairs also reflect radiation, reduce water loss, and ameliorate near-surface temperatures.

Resin glands synthesize and hold the cannabinoids and terpenes and are of three types: bulbous, capitate-sessile, and capitate-stalked.

Bulbous glands are tiny, are present on the first leaves to form, and are found on stems, branches, leaves, and flowers. Although ubiquitous, their contribution to the overall cannabinoid concentration at harvest is insignificant.

Capitate-sessile gland heads are much larger, sit upon a short stalk, which makes them appear stalkless and hence, described as sessile. Capitate-sessile glands likely contribute to the overall cannabinoid concentration due to their larger size and presence on flowers, leaves and petioles.

Capitate-stalked glands are the largest, are the main source of cannabinoid accumulation, and are plainly visible on female flowers. While almost all cells in a cannabis plant are capable of producing minute amounts of cannabinoids, capitate-stalked glands contain at least 50% of the total cannabinoids in a plant. Since female flowers (buds) are the main smokeable product, and buds are the main locus of capitate-stalked glands, these glands are our main source of cannabinoids and terpenes.

Male plants also form all of these trichomes, and until flowering, concentrations of cannabinoids are similar in male and female plants. With the onset of flowering, female plants produce much more cannabinoids than males, primarily because of the concentration and size of capitate-stalked resin glands on female flowers and associated small leaves (bud leaves) that intersperse flower clusters.

Male flowers have capitate-stalked glands on their petal-like tepals, but these are much smaller than those on female flowers. The largest resin glands on male flowers, comparable in size to the largest gland heads on females, form a line on either side of anthers, the pollen bearing organs, popularly called “bananas.” Even so, one would need an enormous amount of male flowers to yield a usable amount of resin.