Autumn Snowflake vs

Acis autumnalis compared with Nitzschia flexa

Key Differences

Autumn Snowflake is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Autumn Snowflake
Kingdom	Plantae (Plants)	Chromista (Chromista)
Phylum	Magnoliophyta (Flowering Plants)	Ochrophyta (Ochrophyta)
Class	Liliopsida (Monocots)	Bacillariophyceae (Bacillariophyceae)
Order	Asparagales (Asparagales)	Bacillariales (Bacillariales)
Family	Amaryllidaceae	Bacillariaceae
Genus	Acis	Nitzschia
Species	Acis autumnalis	Nitzschia flexa

Conservation Status

Autumn Snowflake

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Autumn Snowflake
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Autumn Snowflake

Habitat

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

Range

Found in Norway.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Autumn Snowflake

The Autumn Snowflake (Acis autumnalis) is a species in the genus Acis. It is currently classified as Least Concern on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Nitzschia flexa is a pennate diatom (class Bacillariophyceae) with a characteristically curved or bent raphe system that gives the genus its distinctive appearance. It inhabits freshwater to brackish environments and contributes to benthic and planktonic algal communities. As a photosynthetic microalga, it plays a foundational role in aquatic food webs and primary production.