Blackboard Tree vs Ciliolate Aster

Alstonia scholaris compared with Symphyotrichum ciliolatum

Key Differences

• Blackboard Tree is Least Concern while Ciliolate Aster is Not Evaluated.

Taxonomic Classification

Rank	Blackboard Tree	Ciliolate Aster
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	Symphyotrichum
Species	Alstonia scholaris	Symphyotrichum ciliolatum

Evolutionary Relationship

Blackboard Tree and Ciliolate Aster share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blackboard Tree

LC — Least Concern

Ciliolate Aster

NE — Not Evaluated

Physical Characteristics

Attribute	Blackboard Tree	Ciliolate Aster
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.

Ciliolate Aster

Habitat

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

Range

Distributed across Canada, Norway, and United States.

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.

Ciliolate Aster

Ciliolate aster (Symphyotrichum ciliolatum) is a perennial wildflower in the family Asteraceae, native to central and northern North America, from the Great Plains east through the Great Lakes region and into the northeastern United States and southern Canada. It grows in open woodland, prairie margins, roadsides, and disturbed ground, preferring well-drained to moderately moist soils with full sun. The plant produces upright stems 40–100 centimeters tall bearing alternate, clasping leaves with slightly fringed (ciliolate) margins, and branched clusters of lavender to blue-violet daisy-like flower heads with yellow disc florets. Blooming occurs in late summer and autumn, providing important nectar for migrating monarch butterflies and native bees. Symphyotrichum ciliolatum is classified as Not Evaluated by the IUCN and is common across its native range. The genus Symphyotrichum was split from the broadly defined Aster following molecular phylogenetic work that demonstrated the non-monophyly of the traditional genus. Ciliolate aster is one of many native North American aster species with a wide distribution, though it is absent from Europe despite some database records listing Norway as its country—an artifact of data entry errors in global species databases. Conservation of native prairie and open woodland habitats benefits this species alongside its many pollinators.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States