Broad-leaf arrowhead vs Common Yellow Conch

Sagittaria platyphylla compared with Agapeta hamana

Key Differences

• Broad-leaf arrowhead is Not Evaluated while Common Yellow Conch is Least Concern.

Taxonomic Classification

Rank	Broad-leaf arrowhead	Common Yellow Conch
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Liliopsida (Monocots)	Insecta (Insects)
Order	Alismatales (Alismatales)	Lepidoptera (Butterflies & Moths)
Family	Alismataceae	Tortricidae
Genus	Sagittaria	Agapeta
Species	Sagittaria platyphylla	Agapeta hamana

Conservation Status

Broad-leaf arrowhead

NE — Not Evaluated

Common Yellow Conch

LC — Least Concern

Physical Characteristics

Attribute	Broad-leaf arrowhead	Common Yellow Conch
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broad-leaf arrowhead

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (Georgia, Japan), Europe (Italy, Ukraine), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Colombia).

Common Yellow Conch

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Broad-leaf arrowhead

The Broad-Leaf Arrowhead (Sagittaria platyphylla) is a species in the genus Sagittaria. Typically found in grasslands, wetlands, forests, and cultivated landscapes. It has been recorded Widely distributed across Africa (South Africa), Asia (Georgia, Japan), Europe (Italy, Ukraine), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Colombia)..

Common Yellow Conch

<em>Agapeta hamana</em>, the common yellow conch moth, is a small moth in the family Tortricidae. It is widely distributed across Europe and central Asia, ranging from Britain and Scandinavia eastward through much of the Palearctic region. The species inhabits dry grasslands, heathlands, chalk downlands, and scrubby habitats where its larval host plants are found. Adult moths display distinctive pale yellow to golden-yellow forewings with irregular brown or reddish-brown markings near the wingtip, forming a pattern that resembles the shell of a conch, lending the species its common name. The wingspan typically measures around 15–22 mm. Biological traits such as average adult lifespan, precise body weight, and detailed population data remain poorly documented in consolidated scientific literature. Larvae feed internally on the roots of thistles and knapweeds, particularly <em>Centaurea</em> and <em>Cirsium</em> species. Adults fly from June to August and are frequently attracted to light. <em>Agapeta hamana</em> has been investigated as a potential biological control agent for invasive knapweed species in North America, where it has been introduced experimentally. The species is assessed as Least Concern given its broad distribution and stable habitat associations.