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Summer or crab grass - d. ciliaris

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Scientific Name
Digitaria ciliaris
Pest Alias
Crabgrass; Summer Grass
Kingdom:
Plantae
Phylum:
Tracheophyta
Subphylum:
Angiospermae
Class:
Liliopsida
Order:
Poales
Family:
Poaceae
Subfamily:
Panicoideae
Tribe:
Paniceae
Genus:
Digitaria
Species:
Digitaria ciliaris
At Peradeniya Royal Botanical Garden.

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]

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 Wollastonia 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.

Forage Crop

Southern crabgrass, and the related large crabgrass, especially the cultivars 'Red River Crabgrass', 'Impact', and 'Quick-n-Big', have been utilized as a forage crop for livestock, as it is a highly nutritious warm season grass.[7][8] Red river crabgrass responds well to nitrogen fertilizer, growing up to 3 feet tall, and needs to be in rotation with cool-season forage.

References

  1. ^ "The Plant List: A Working List of All Plant Species". Retrieved 7 February 2015.
  2. ^ Digitaria ciliaris. USDA Plants Profile.
  3. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  4. ^ Digitaria ciliaris - Common Australian Garden Weeds Archived 2012-05-02 at the Wayback Machine.
  5. ^ a b c Digitaria ciliaris - CABI
  6. ^ 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
  7. ^ Bouton, J. "Crabgrass: A Short Step from Weed to Valuable Forage!".
  8. ^ "Red River Fact Sheet".

This article uses material from the Wikipedia article "Digitaria ciliaris", which is released under the Creative Commons Attribution-Share-Alike License 3.0. Content may have been omitted from the original, but no content has been changed or extended.

Summer or crab grass - d. ciliaris

Digitaria ciliaris
Scientific Name
Digitaria ciliaris
Pest Alias
Crabgrass; Summer Grass
Kingdom:
Plantae
Phylum:
Tracheophyta
Subphylum:
Angiospermae
Class:
Liliopsida
Order:
Poales
Family:
Poaceae
Subfamily:
Panicoideae
Tribe:
Paniceae
Genus:
Digitaria
Species:
Digitaria ciliaris
At Peradeniya Royal Botanical Garden.

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]

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 Wollastonia 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.

Forage Crop

Southern crabgrass, and the related large crabgrass, especially the cultivars 'Red River Crabgrass', 'Impact', and 'Quick-n-Big', have been utilized as a forage crop for livestock, as it is a highly nutritious warm season grass.[7][8] Red river crabgrass responds well to nitrogen fertilizer, growing up to 3 feet tall, and needs to be in rotation with cool-season forage.

References

  1. ^ "The Plant List: A Working List of All Plant Species". Retrieved 7 February 2015.
  2. ^ Digitaria ciliaris. USDA Plants Profile.
  3. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  4. ^ Digitaria ciliaris - Common Australian Garden Weeds Archived 2012-05-02 at the Wayback Machine.
  5. ^ a b c Digitaria ciliaris - CABI
  6. ^ 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
  7. ^ Bouton, J. "Crabgrass: A Short Step from Weed to Valuable Forage!".
  8. ^ "Red River Fact Sheet".

This article uses material from the Wikipedia article "Digitaria ciliaris", which is released under the Creative Commons Attribution-Share-Alike License 3.0. Content may have been omitted from the original, but no content has been changed or extended.