Calamus vs Common Dodder

Acorus calamus compared with Cuscuta gronovii

Taxonomic Classification

Rank	Calamus	Common Dodder
Kingdom same	Plantae (thực vật)	Plantae (thực vật)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Liliopsida (Monocots)	Magnoliopsida (Dicots)
Order	Acorales (Bộ Xương bồ)	Solanales (Bộ Cà)
Family	Acoraceae	Convolvulaceae
Genus	Acorus	Cuscuta
Species	Acorus calamus	Cuscuta gronovii

Evolutionary Relationship

Calamus and Common Dodder share a common ancestor at the Phylum level: Magnoliophyta. (Flowering Plants)

Conservation Status

Calamus

LC — Least Concern

Common Dodder

LC — Least Concern

Physical Characteristics

Attribute	Calamus	Common Dodder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Calamus

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical coniferous forests within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (5 countries), Europe (30 countries), and North America (Canada, United States).

Common Dodder

Habitat

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

Range

Found across Europe (11 countries) and North America (United States).

Calamus

The Calamus (Acorus calamus) is a species in the genus Acorus. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical coniferous forests within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Common Dodder

<em>Cuscuta gronovii</em>, the common dodder, is a parasitic annual vine in the family Convolvulaceae. This species is distributed across eleven European countries as well as the United States, where it typically inhabits diverse terrestrial environments including wetland margins, roadsides, thickets, and disturbed vegetation. Unlike most plants, <em>Cuscuta gronovii</em> lacks chlorophyll and is entirely dependent on host plants for water and nutrients, which it extracts through specialized structures called haustoria. The common dodder typically has slender, twining orange or yellowish stems and produces small, clustered white or pale pink flowers in late summer. It often parasitizes a broad range of host species, including many herbaceous and shrubby plants. Once attached to a host, it typically sheds its connection to the soil and relies entirely on the host for sustenance. The species is assessed as Least Concern, reflecting its wide distribution and ability to colonize disturbed habitats. Its parasitic life history makes it ecologically notable among flowering plants.

Shared Countries

Both species can be found in 11 countries:

🇧🇪 Belgium 🇫🇷 France 🇩🇪 Germany 🇮🇹 Italy 🇲🇩 Moldova 🇳🇱 Netherlands 🇳🇴 Norway 🇪🇸 Spain 🇺🇦 Ukraine 🇬🇧 United Kingdom 🇺🇸 United States