Blackboard Tree vs Mountain yam

Alstonia scholaris compared with Dioscorea hamiltonii

Key Differences

• Blackboard Tree is Least Concern while Mountain yam is Near Threatened.

Taxonomic Classification

Rank	Blackboard Tree	Mountain yam
Kingdom same	Plantae (植物)	Plantae (植物)
Phylum same	Magnoliophyta (被子植物門)	Magnoliophyta (被子植物門)
Class	Magnoliopsida (モクレン綱)	Liliopsida (単子葉植物綱)
Order	Gentianales (リンドウ目)	Dioscoreales (ヤマノイモ目)
Family	Apocynaceae	Dioscoreaceae
Genus	Alstonia	Dioscorea
Species	Alstonia scholaris	Dioscorea hamiltonii

Evolutionary Relationship

Blackboard Tree and Mountain yam share a common ancestor at the Phylum level: Magnoliophyta. (被子植物門)

Conservation Status

Blackboard Tree

LC — Least Concern

Mountain yam

NT — Near Threatened

Physical Characteristics

Attribute	Blackboard Tree	Mountain yam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackboard Tree

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

Mountain yam

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Blackboard Tree

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.