Cannabis achene development and mature fruit/seed anatomy, including pericarp, seed coat, embryo, cotyledons, and residual endosperm.
Visual lesson 01
Seed anatomy
Distinguish the whole cannabis achene from the true seed and locate the pericarp, seed coat, residual peripheral endosperm, cotyledons, radicle, hypocotyl region, and plumule.
Interactive academic visual · corrected achene anatomy
Cannabis achene anatomy
Common grower term “seed” · botanical unit achene (fruit + true seed)Knowledge check
PracticeCan you explain what the visual is showing?
Which seed structure becomes the first root organ after germination begins?
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.Cannabis achene and embryo microstructure, cotyledons, radicle position, storage organelles, reserve mobilization, and structural changes during germination.
Published correction associated with the 2023 Cannabis seed-germination ultrastructure paper used in the controlled achene-anatomy package.
Structural characterization of Cannabis achene shell tissues used as supporting evidence for distinguishing the fruit wall from internal seed tissues.
X-ray micro-CT characterization of hemp achene morphology in a representative specimen; useful for specimen-aware structural and morphometric context rather than universal dimensions.
Cannabis leaf morphogenesis, phyllotaxy, plant architecture, reproductive transition, inflorescence development, trichome development, and senescence across a complete life cycle.
System context