Blackboard Tree vs Dense-leaved Hawkweed

Alstonia scholaris compared with Hieracium pycnotrichum

Key Differences

• Blackboard Tree is Least Concern while Dense-leaved Hawkweed is Extinct.

Taxonomic Classification

Rank	Blackboard Tree	Dense-leaved Hawkweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Asterales (Daisies & Sunflowers)
Family	Apocynaceae	Asteraceae (Daisy Family)
Genus	Alstonia	Hieracium
Species	Alstonia scholaris	Hieracium pycnotrichum

Evolutionary Relationship

Blackboard Tree and Dense-leaved Hawkweed share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blackboard Tree

LC — Least Concern

Dense-leaved Hawkweed

EX — Extinct

Physical Characteristics

Attribute	Blackboard Tree	Dense-leaved Hawkweed
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.

Dense-leaved Hawkweed

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.