Digitaria ciliaris
Digitaria ciliaris is a species of grass known by the common names southern crabgrass,[2] tropical finger-grass,[3] tropical crabgrass or summer grass.[4]
| Digitaria ciliaris | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Panicoideae |
| Genus: | Digitaria |
| Species: | D. ciliaris |
| Binomial name | |
| Digitaria ciliaris (Retz.) Koeler | |
| Synonyms[1] | |
| |
The grass is known as "ගුරු තණ - guru thana" in Sri Lanka.
Distribution
Digitaria ciliaris is a tough plant, believed to have originated in Asia but now found all over the tropical belt of the planet, as well as in many temperate regions of both hemispheres.[5] This grass is an invasive species considered an aggressive weed in certain countries, including China, Mexico and the United States.[5]
Together with Portulaca oleracea, Ipomoea pes-caprae and Melanthera biflora, Digitaria ciliaris is usually one of the first species colonizing degraded or altered environments in tropical zones of the planet.[6]
Description
This grass is an annual plant that can grow up to 1 m tall, but is usually much shorter. The roots are at the nodes and the stems produce runners that allow the plant to grow fast forming scruffy-looking patches about 1 m across and half a metre in height. The leaves are linear to linear-ovate narrowing at the tip to 15 centimeters long. The inflorescence is at the top of a long stem, usually much taller than the leaves, with two to nine 5–10 cm long sub-digitate racemes.[5]
 General appearance of the grass. |
 Plant and roots. |
References
- "The Plant List: A Working List of All Plant Species". Retrieved 7 February 2015.
- Digitaria ciliaris. USDA Plants Profile.
- "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
- Digitaria ciliaris - Common Australian Garden Weeds Archived 2012-05-02 at the Wayback Machine.
- Digitaria ciliaris - CABI
- Heatwole, H., Done, T., Cameron, E. Community Ecology of a Coral Cay, A Study of One-Tree Island, Great Barrier Reef, Australia. Series: Monographiae Biologicae, Vol. 43, p. 102
External links
Media related to Digitaria ciliaris at Wikimedia Commons- Southern crabgrass PFAF