SafePlants

African Couch Grass (Digitaria abyssinica)

African couch grass, scientifically known as Digitaria abyssinica, is a perennial grass found in various tropical regions. It is also known by several other common names, including Abyssinian finger grass, couch finger grass, Dunn's finger grass, and thangari.

Taxonomy and Nomenclature

• Scientific Name: Digitaria abyssinica (Hochst. ex A. Rich.) Stapf
• Family: Poaceae (Grass Family)
• Synonyms/Alternative Names: The text also references Digitaria scalarum, though this may be a distinct species.

Distribution and Habitat

• Originally from Africa, and mentioned as being commonly found in Africa, and in areas like Hawaii, and Australia.
• Specifically mentioned as a troublesome weed in the crops of Ethiopia, Kenya, Uganda, and Tanzania.

Ecological Role

• It can be an invasive species in certain environments.

Morphological Characteristics and Growth Habits

• A perennial grass that can be erect or decumbent (trailing).
• Characterized by slender, long rhizomes.

Interactions with Other Organisms

• The text mentions that it can be attacked by couch grass mites.
• It is also mentioned as a common garden plant that is found alongside agapanthus, English ivy, African olives, Couch grass (Cynodon dactylon) and kikuyu (Pennisetum clandestinum)

Further Information

• ResearchGate is mentioned as a source of information.
• Dave's Garden is also mentioned, a community for sharing gardening tips and ideas.
• Feedipedia is listed as a source of information.
• Plants of Hawaii also provides images and information.