The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 4333Indica

Third Pupil by Massmedicalstrains

Pupil Family × Star Pupil

Third Pupil is an indica-dominant cultivar developed by MassMedicalStrains, building on the breeder's renowned Pupil family genetics. This strain is characterized by its complex aroma profile and deeply relaxing effects, making it a favorite for introspective moments.

EffectsCalm Creative Relaxing Introspective Focus
May help withStress
AromaIncenseFloralGrapeCitrusWoodySpicyLavenderSandalwoodBlack PepperViolet

Appearance

Third Pupil produces dense, compact buds that resemble golf balls or small colas, with a high calyx-to-leaf ratio. The bracts swell significantly, creating faceted, resin-coated structures. Trichome coverage is extensive, giving the buds a frosted appearance. Many phenotypes exhibit deep purples and violet marbling, especially when exposed to cooler temperatures during late flowering, enhancing their visual appeal.

The bud structure often forms thick, tightly packed spears and clustered crowns. Swollen calyxes and closely curled sugar leaves simplify trimming. Despite their size, the buds are heavy due to dense stacking and minimal internal voids. Properly dried and cured, Third Pupil displays a crystalline look that catches the light, revealing a glittering interior of resin heads and color variegation when broken apart.

Aroma & Flavor

The aroma of Third Pupil is primarily incense-forward, featuring notes of sandalwood, black pepper, and dried violet, layered with hints of grape peel and blackcurrant. A subtle citrus note from limonene brightens the profile. When ground, the scent intensifies, revealing citrus-incense with undertones of pine resin and a violet talc finish. The aroma evolves during curing, deepening spice and smoothing floral notes, sometimes developing a red-wine richness.

On the palate, Third Pupil offers initial tastes of sandalwood and pepper, followed by grape skin and lavender. A bright citrus snap on the exhale, attributed to limonene, balances the profile. The flavor is often described as a blend of candy, chocolate, citrus, diesel, floral, grape, herbal, and lavender, creating a complex and engaging sensory experience. The room note during smoking is calming, dominated by incense with hints of candied citrus and woody notes.

Effects

Third Pupil is recognized for its relaxing and introspective effects, aligning with its indica heritage. It is often sought after for promoting calm focus and facilitating creative reflection. The strain tends to induce a sense of tranquility, making it suitable for unwinding in the evening or engaging in thoughtful activities.

Consumers report that Third Pupil helps to alleviate stress, providing a meditative headspace rather than high-energy stimulation. It is generally considered a strain for relaxation and introspection, rather than for high-octane productivity, offering a balanced experience that supports calm and creativity.

Terpenes & Cannabinoids

Third Pupil consistently expresses significant levels of caryophyllene, myrcene, and limonene. These primary terpenes contribute to its incense-spice, grape-floral, and citrus aromatic and flavor profiles. Secondary terpenes often include linalool and humulene, adding lavender-like and woody notes, respectively.

The THC content typically ranges from 18% to 24%, with CBD levels below 1%. This cannabinoid profile, combined with the terpene blend, underpins the strain's characteristic relaxing and introspective effects. The terpene composition points towards its indica lineage and away from purely dessert or diesel profiles.

Growing

Third Pupil is noted for its manageable size and resilient plant structure, hallmarks of MassMedicalStrains' selective breeding. Growers report uniform branching, predictable flowering windows, and manageable stretch. The strain's indica-leaning architecture and thick calyxes contribute to its striking appearance and dense bud formation.

Optimal conditions, particularly cooler night temperatures (60–68°F) during the final weeks of flowering, can enhance anthocyanin expression, resulting in deep purple and violet hues. The plant structure is considered straightforward to trim due to swollen calyxes and moderate sugar leaf growth.

Origins & Lineage

Third Pupil is a boutique cultivar from MassMedicalStrains (MMS), a Massachusetts-based breeder known for its Pupil family of genetics, including Star Pupil and PuTang. It represents a continuation of the Pupil project's tradition, emphasizing complex incense, fruit, and spice aromas paired with robust plant structures.

While specific parentage details are often proprietary, Third Pupil is understood to descend from the MMS Pupil lineage, with an indica-forward genetic foundation. The strain was refined through extensive phenotype hunting and community testing, ensuring reliable garden performance and a nuanced terpene profile that reflects its heritage.

Frequently asked questions

What is the THC content of Third Pupil?
Third Pupil typically has a THC content ranging from 18% to 24%.
What are the dominant terpenes in Third Pupil?
The dominant terpenes in Third Pupil are Caryophyllene, Myrcene, and Limonene, with Linalool and Humulene often present as secondary terpenes.
What effects are associated with Third Pupil?
Third Pupil is known for promoting calm, creativity, relaxation, and introspection, often helping to reduce stress.
What is the aroma and flavor profile of Third Pupil?
Third Pupil features a complex aroma and flavor profile with notes of incense, sandalwood, pepper, grape, lavender, and citrus.