Admiralty Island Meadow Vole (Admiraltiae) vs Common St. John'S Wort

Microtus pennsylvanicus compared with Hypericum perforatum

Taxonomic Classification

Rank	Admiralty Island Meadow Vole (Admiraltiae)	Common St. John'S Wort
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Magnoliophyta (被子植物門)
Class	Mammalia (哺乳類)	Magnoliopsida (モクレン綱)
Order	Rodentia (ネズミ目)	Malpighiales (キントラノオ目)
Family	Cricetidae	Hypericaceae
Genus	Microtus	Hypericum
Species	Microtus pennsylvanicus	Hypericum perforatum

Conservation Status

Admiralty Island Meadow Vole (Admiraltiae)

LC — Least Concern

Common St. John'S Wort

LC — Least Concern

Physical Characteristics

Attribute	Admiralty Island Meadow Vole (Admiraltiae)	Common St. John'S Wort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Admiralty Island Meadow Vole (Admiraltiae)

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

Common St. John'S Wort

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and deserts and xeric shrublands spanning the Afrotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (5 countries), Europe (8 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Brazil, Chile).

Admiralty Island Meadow Vole (Admiraltiae)

The Admiralty Island Meadow Vole (Admiraltiae) (Microtus pennsylvanicus) is a species in the genus Microtus. It is currently classified as Least Concern on the IUCN Red List. This species inhabits Typically found in diverse terrestrial and aquatic ecosystems, found across United States.

Common St. John'S Wort

<em>Hypericum perforatum</em>, commonly known as common St. John's wort, is a flowering plant in the family Hypericaceae, order Malpighiales. It enjoys a cosmopolitan distribution, naturally occurring across Europe, western Asia, and North Africa, and has become widely naturalized in North and South America, Australia, and parts of Asia. The species typically inhabits roadsides, meadows, disturbed ground, and open woodland edges, preferring well-drained soils and full sun to partial shade. Its bright yellow flowers, distinguished by black glandular dots along the margins, bloom from late spring through summer. <em>Hypericum perforatum</em> has long been used in herbal medicine, particularly for its antidepressant properties attributed to the compound hypericin. The plant is also known to cause photosensitivity in livestock when ingested in large quantities. Biological traits including precise lifespan, reproductive output rates, and specific dietary associations remain poorly documented at the species level. Its conservation status is Least Concern, and it is considered a common weed in many regions, indicating a stable and widespread global population.