Plant · GBIF taxon 5284237
sugi
Cryptomeria japonicaAlso known as Japanese Cedar, Japanese Redwood
Sugi forms vast, misty forests across Japan, growing into massive evergreen trees with reddish-brown fibrous bark that peels in long strips. Its spirally arranged, awl-shaped needles turn a bronze hue during cold winters, while small woody cones cluster near the tips of its branches. Deeply revered in Japanese culture, ancient sacred specimens often surround Shinto shrines, though dense modern timber plantations produce heavy pollen clouds each spring.
EvergreenConiferForest Giant
1 / 7—observations
—countries
—peak records
Near ThreatenedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNear ThreatenedRed List categories, explained →
Diet & prey
- Photosynthetic
Predators
Not available
ThreatsHistoric logging of wild stands, climate-induced drought stress, fungal pathogens
HabitatsTemperate montane forests, steep valleys, timber plantations
Life span600–1,000+ years
Size / weightNot available
Classification
- FamilyCupressaceae
- SpeciesCryptomeria japonica
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Releases dense airborne pollen in late winter, causing severe hay fever in sensitive individuals.
- What to notice
- Wild trees stand out by their enormous trunk girth, deeply furrowed stringy bark, and weathered ancient canopy crowns.
- Support conservation
- Remain on designated paths when visiting ancient groves to prevent soil compaction around delicate root systems.
Responsible observation
- Pollen Awareness: Wear an allergy mask when hiking near plantations during the late winter and early spring release.
- Bark Identification: Look for soft, reddish-brown bark shedding in vertical strips to distinguish it from true cedars.
- Ancient Trees: Stay on paved or wooden walkways near sacred shrine trees to protect shallow, fragile surface roots.
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