Cannabis inflorescence bract trichome development across flower age and genotype, including changing capitate forms, stalk development, distribution, resin production, dehiscence, and senescence; study-specific timing is not a universal harvest clock.
Visual lesson 10
Gland aging, dehiscence & sampling integrity
Compare intact developing glands with aging, collapsed, detached, or dehisced heads and connect those physical states to flower age, genotype, handling, and sampling location so degraded glands are not automatically interpreted as one universal maturity stage.
System study map
Gland aging, dehiscence & sampling integrity
Intact-to-aged/dehisced gland integrity sequence and sampling checklistStart with the highlighted plant system as the anatomical context. Then compare the lesson observations with the evidence sources and knowledge check below so structure, process, and whole-plant consequences stay connected.- Plant system
- Trichomes & Resin
- Lesson focus
- Intact-to-aged/dehisced gland integrity sequence and sampling checklist
- Study mode
- Whole-plant context
Knowledge check
PracticeCan you explain what the visual is showing?
Why can a collapsed, detached, or darkened gland head not be interpreted as one universal maturity stage by itself?
Track this lesson
Mark the lesson complete when you are comfortable with the visual, observations, and system context.
Evidence & further reading
Sources connected to this lesson
These references support specific biological, diagnostic, environmental, or process concepts used in this lesson. They are not a substitute for crop-specific testing or local regulatory guidance.Trichome sampling units, bract versus sugar-leaf context, microscopy and imaging considerations, anatomical variability, and reproducibility of trichome assessment.
Cannabis glandular-trichome morphology, secretory-disc cell numbers, autofluorescence, metabolite specialization, and evidence that mature stalked floral trichomes develop from sessile-like precursor states.
Cannabis glandular trichome morphology, capitate-stalked and sessile forms, secretory disk cells, subcuticular storage, distribution, and specialized-metabolite biology.
Cannabis leaf morphogenesis, phyllotaxy, plant architecture, reproductive transition, inflorescence development, trichome development, and senescence across a complete life cycle.
System context