The pillar guide
Cannabis 101

A plain-English guide to cannabis.

This is the introduction we wish every new shopper had read before walking into a store for the first time. THC, CBD, terpenes, indica vs sativa, dosing, and New York’s adult-use rules — written by our buyers in language a 21-year-old can use.

What cannabis actually is

Cannabis is a flowering plant — Cannabis sativa L. — that produces hundreds of bioactive compounds in the resin glands of its female flowers. The two compounds people care about most are THC (the one that gets you high) and CBD (the one that doesn’t, but does plenty else). The plant also produces aromatic compounds called terpenes — the same family of molecules that gives lavender its scent or pine its sap.

Cannabis is a flowering plant in the genus Cannabis. Its female flowers produce cannabinoids (THC, CBD, CBN, CBG) and terpenes (aromatic compounds). When dried, those flowers can be smoked, vaporized, infused into food, or extracted into concentrates and topicals. New York legalized adult-use cannabis under the 2021 MRTA.

THC, CBD, and the other cannabinoids

THC (delta-9 tetrahydrocannabinol) is the primary intoxicating cannabinoid. It binds to the body’s CB1 receptors and produces the classic cannabis high — euphoria, altered perception, increased appetite. Most flower today tests in the 18–28% THC range. CBD (cannabidiol) is non-intoxicating, often used for relaxation and sleep without altered consciousness. The minor cannabinoids — CBN, CBG, CBC — show up in smaller amounts and shape the overall experience.

The single most important rule in cannabis is start low, and go slow.

Indica, sativa, and the modern hybrid reality

Indica and sativa started as botanical labels — short, broad-leaved plants from Hindu Kush vs tall, narrow-leaved plants from equatorial regions. After fifty years of crossbreeding, the labels have lost most of their precision. Most cannabis sold today is hybrid.

What predicts how a strain feels is not the indica/sativa label but the dominant terpene profile and the cannabinoid ratio. Two strains both labeled "indica" can feel completely different. Ask a budtender to recommend by terpene, not by indica/sativa.

Why terpenes matter as much as cannabinoids

Terpenes are the aromatic compounds that give cannabis its smell — and a meaningful share of its effect. The six that matter most:

  • Myrcene — earthy, mango-like. Tends toward sedation. Heavy in indica-dominant strains.
  • Limonene — citrus. Tends toward elevation. Common in sativa-dominant hybrids.
  • Pinene — pine, rosemary. Linked to focus + alertness.
  • Linalool — lavender, floral. Tends toward calm + sleep support.
  • Caryophyllene — pepper, clove. The only terpene that binds to cannabinoid receptors directly.
  • Terpinolene — fresh, herbal. Common in uplifting + creative strains.

Full spectrum versus distillate

Full spectrum cannabis preserves the plant’s full cannabinoid + terpene profile — flower, live resin, live rosin, hash. Distillate is THC isolated to ~95% purity, often with botanical or cannabis-derived terpenes added back. Distillate carts can deliver high THC at lower cost; full-spectrum products cost more but carry more of what makes cannabis taste and feel like cannabis.

Cannabis product formats: a practical comparison

The five main formats — what each is, when to use it, and what to watch for:

FormatOnsetDurationBest for
Flower1–5 min1–3 hrVersatile sessions; rolling your own; full-plant taste
Pre-rolls1–5 min1–3 hrOn-the-go; trying a strain
Vapes1–5 min1–2 hrDiscreet; precise dosing; portability
Edibles30–90 min4–8 hrSmoke-free; long sessions; sleep
Concentrates1–5 min1–3 hrExperienced consumers; high potency

Dosing for different experience levels

Cannabis tolerance scales with use. The same dose lands differently on different bodies — and the dose that works on Friday night might be too much on Monday morning. Build in margin.

New York adult-use rules in plain English

Adults 21+ in New York may purchase up to 3 ounces of flower or 24 grams of concentrate per day. Edible packages cap at 100 mg total THC. ID is required at every visit. Cannabis purchased in NY must be consumed in NY where legal — federal law prohibits crossing state lines with cannabis. Consumption in retail dispensaries is prohibited; take it home or to another private location.

Min age
21 years (photo ID required)
Daily flower limit
3 oz per adult
Daily concentrate limit
24 g per adult
Edible THC cap
100 mg per package
On-site consumption
Prohibited
Cross-state transport
Federally prohibited

Buying cannabis at Union Chill

Tell a budtender two things — your experience level and what you want to feel — and they’ll narrow the menu to three or four good options in about five minutes. We carry over 15 NY-licensed cultivators rotating across 200+ SKUs. Every product comes with a Certificate of Analysis (COA) on request.

Open the live menu

The full Cannabis 101 library

11 deep-dive guides + FAQ.

Each guide answers a single question in 4–7 minutes. Written by our buyers, reviewed by our compliance lead.

Wellness applications

Cannabis & real-life outcomes.

Plain-English deep-dives on how cannabis fits sleep, anxiety, pain, focus, creativity, and more.

Strain finders by effect

Pick a feeling, find the strain.

Skip the strain-name memorization. Buyer-curated lists for the outcome you actually want.

Practice + technique

Read a COA, microdose, take a break.

Skill-build for shoppers who already know the basics.

From the buyers' desk

The blog.

Every-other-Friday notes from our buyers — what dropped, what to try, and a Corning event worth your weekend.

Quick FAQ

The four questions everyone asks first.

What is the difference between indica and sativa?
Indica and sativa are botanical labels that have lost most of their precision over decades of crossbreeding. Most cannabis sold today is hybrid. The label that better predicts how a strain will feel is the dominant terpene — myrcene tends toward sedation, limonene toward elevation, pinene toward focus. Ask a budtender to recommend by terpene, not just by indica/sativa.
How much should I take if it is my first time?
Start low, go slow. For edibles, that is 2.5-5 mg of THC and a 90-minute wait before redosing. For flower or vapes, one inhalation, then five minutes of waiting. The dose that works on Friday night might be too much on Monday morning.
What does THC % actually mean?
THC percentage measures the cannabinoid content of a flower lot, but it does not predict experience well above ~22%. Two strains with identical THC content can feel meaningfully different because of their terpene profile, ratio of other cannabinoids (CBD, CBG, CBN), and the entourage effect of the full plant.
What is full spectrum vs distillate?
Full spectrum cannabis preserves the plant's full cannabinoid + terpene profile. Distillate is THC isolated to ~95% purity, often with terpenes added back. Live resin and live rosin sit at the full-spectrum end. Distillate carts can deliver high THC at lower cost but lose the natural plant character.