Printed from smellbook.com/smells/autumn-leaves. This printout keeps the entry for Autumn Leaves itself: its description, reference card, Connections, questions, evidence, related smells, record details, states, names and citation. It leaves out your own notes, the map, the lists of paths, routes, stories and fragrance directions, and the lists headed “Also linked to” (other entries that share its place or material) and “Linked from”; they are on the page online. The entries this one links to are still printed under Connections and Related smells.
Links SmellBook records for this entry: where you meet it and related smells. EDITORIAL links are chosen by SmellBook editors. Nothing here is a ranking.
QUESTIONS ABOUT AUTUMN LEAVES
Autumn Leaves, question by question
What does autumn leaves smell like? EDITORIAL
Autumn leaves smell leafy and earthy, moving between a dry, papery crackle and a damp, mellow sweetness. Fresh fallen leaves carry a faint green bitterness, while older layers deepen into soft rot and woodland soil. The smell is moderate, spread out rather than sharp, and it shifts strongly with the weather: crisp on cold dry days, heavier and rounder after rain, sometimes close to tea or tobacco.
It is met on park paths, along forest edges and in gardens where leaves gather under hedges and trees. Raking, kicking through piles or walking a woodland route on a cool afternoon in autumn brings it up most clearly.
One VERIFIED scientific claim from one published source is recorded for this entry: What fallen leaf litter releases. This claim says only what its source supports, in the scope shown with it.
The scientific study behind this evidence is chemistry or emission work, not a study of how the smell is perceived.
How do people describe it, and what is it compared with? EDITORIAL
Autumn Leaves is a seasonal environment profile whose moisture level strongly changes perception.
Answers marked EDITORIAL are written by SmellBook editors to describe the experience and add no scientific fact. Answers marked VERIFIED point to claims on published sources, checked against each source's own summary where one was available (each claim's page says how); what each claim supports is in its own text and scope.
01WHAT THE EVIDENCE SAYSVERIFIED
What the evidence supports
This one VERIFIED scientific claim, from one source, covers the chemistry reported. How the scientific evidence was produced: emissions or air measured. This claim says only what its source supports, in the scope shown with it.
What is editorial
The description, smell words, associations and related smells on this page are written by SmellBook's editors and labelled EDITORIAL or CULTURAL; a claim below does not make them VERIFIED.
The litter of five deciduous tree species released more than 70 volatile organic compounds, a mixture very different from the essential oils distilled from autumn leaves collected on the trees; the authors suggest most come from the microorganisms decomposing the litter.
A qualitative analysis of litter emissions; the microbial origin is the authors' suggestion, and the study does not describe smell.
How this was found: Emissions or air measured. What a material, product or place releases into the air was measured, usually without assessing odour. Source: primary study; material-emission work.
Each step is a relationship SmellBook editors recorded in the knowledge graph, named as it is published there. Paths are not ranked or personalised, and they do not mean the smells smell alike.
CULTURAL: This entry's associations depend on context, language, memory or culture; its description and smell words are editorial. It says nothing about research or historical evidence; evidence for this entry is shown separately: VERIFIED.
ATLAS POSITION107 / 200
MILESTONEAtlas 150
PRIMARY CATEGORYNature
PUBLIC TYPEExperience
PROFILE STATUScomplete
Names and identity for Autumn Leaves
How this entry is identified and named, for citing it or matching it with other records.
@misc{smellbook_autumn_leaves_r4,
author = {{SmellBook}},
title = {Autumn Leaves},
year = {2026},
note = {SmellBook Public Atlas, revision 4, 2026-10-06, smellbook:smell:autumn-leaves},
url = {https://smellbook.com/smells/autumn-leaves}
}
TY - ENCYC
ID - smellbook-autumn-leaves-r4
TI - Autumn Leaves
AU - SmellBook
T2 - SmellBook Public Atlas
PY - 2026
DA - 2026/10/06
ET - revision 4
UR - https://smellbook.com/smells/autumn-leaves
N1 - SB-0107; smellbook:smell:autumn-leaves; resolver https://smellbook.com/id/smell/autumn-leaves
ER -
The citation names revision 4 of 2026-10-06, so a reader can tell exactly which version was cited. Citing records what was read; it does not grant a licence.
PROFILE NOTE
Autumn Leaves is a seasonal environment profile whose moisture level strongly changes perception.
EDITORIAL REVISIONRevision 4
Editorial description expanded to answer what it smells like and where you meet it; independently reviewed.