clouded-bordered brindle vs Common Sundew

Apamea crenata compared with Drosera rotundifolia

Key Differences

clouded-bordered brindle is Least Concern while Common Sundew is Vulnerable.

Taxonomic Classification

Rank	clouded-bordered brindle	Common Sundew
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Lepidoptera (Butterflies & Moths)	Caryophyllales (Caryophyllales)
Family	Noctuidae	Droseraceae
Genus	Apamea	Drosera
Species	Apamea crenata	Drosera rotundifolia

Conservation Status

clouded-bordered brindle

LC — Least Concern

Common Sundew

VU — Vulnerable

Physical Characteristics

Attribute	clouded-bordered brindle	Common Sundew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

clouded-bordered brindle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Asia (Taiwan) and Europe (5 countries).

Common Sundew

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (8 countries), and North America (Canada, United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

clouded-bordered brindle

The clouded bordered brindle (Apamea crenata) is a noctuid moth in the family Noctuidae found across temperate Europe and across northern Asia to Japan. The adult wingspan measures approximately 38–45 mm, with intricately patterned grey-brown and buff forewings bearing subtle cross-lines, a scalloped (crenate) outer margin giving the species its name, and distinctive reniform and orbicular markings characteristic of the Apamea genus. Adults fly in one generation from May to July, visiting flowers for nectar at night. The larvae feed internally within the stems and roots of grasses, particularly Brachypodium and other coarse grass species in woodland rides, woodland margins, and rough grassland habitats. Overwintering occurs as a larva within plant stems. Like many grass-feeding noctuids, the clouded bordered brindle requires structural diversity in its grassland and woodland edge habitats, with areas of tall, tussocky grasses providing both larval foodplants and adult shelter. Population trends in parts of its European range reflect changes in land management affecting coarse grassland and woodland ride quality.

Common Sundew

<em>Drosera rotundifolia</em>, the common sundew, is a carnivorous flowering plant in the family Droseraceae, order Caryophyllales. It has a broad distribution spanning Europe, Asia, and North America, typically growing in sphagnum bogs, wet heathlands, and other nutrient-poor, acidic wetland habitats where it compensates for low soil nutrient availability by trapping and digesting insects. The round leaves bear red, glandular tentacles tipped with sticky mucilage that immobilize prey, which is then digested by enzymes secreted from the leaf surface. <em>Drosera rotundifolia</em> produces small white flowers on a slender scape, pollinated by insects. It plays a minor but ecologically interesting role in controlling insect populations within its boggy habitat. Biological traits including typical individual lifespan, precise leaf dimensions, and detailed prey composition remain poorly documented. The species is assessed as Vulnerable by the IUCN, reflecting significant population declines across much of its range driven primarily by drainage and destruction of peatland habitats, atmospheric nitrogen deposition, and climate change altering the hydrology of bog ecosystems. Effective peatland conservation is critical for the long-term survival of this species.