Tussock grass

From Wikipedia, the free encyclopedia
(Redirected from Hummock grass)
Jump to navigation Jump to search

Tussock grasses (also known as bunch grasses or hummock grasses) are a group of grass species in the family Poaceae. They usually grow as singular plants in clumps, tufts, hummocks, or bunches, rather than forming a sod or lawn, in meadows, grasslands, and prairies. As perennial plants, most species live more than one season. Tussock grasses are often found as forage in pastures and ornamental grasses in gardens.[1][2][3]

Many species have long roots that may reach two meters (6+1⁄2 feet) or more into the soil, which can aid slope stabilization, erosion control, and soil porosity for precipitation absorption. Also, their roots can reach moisture more deeply than other grasses and annual plants during seasonal or climatic droughts. The plants provide habitat and food for insects (including Lepidoptera), birds, small animals and larger herbivores, and support beneficial soil mycorrhiza. The leaves supply material, such as for basket weaving, for indigenous peoples and contemporary artists.

Tussock and bunch grasses occur in almost any habitat where other grasses are found, including: grasslands, savannas and prairies, wetlands and estuaries, riparian zones, shrublands and scrublands, woodlands and forests, montane and alpine zones, tundra and dunes, and deserts.

Fire resistance

[edit | edit source]

In western North American wildfires, bunch grasses tend to smolder and not ignite into flames, unlike invasive species of annual grasses that contribute to a fire's spreading.[4]

Genera

[edit | edit source]
Examples:


Species

[edit | edit source]

Australia

[edit | edit source]

New Zealand

[edit | edit source]
Further information: Tussock grasslands of New Zealand

North America

[edit | edit source]
Bunch grasses:[5]

South America

[edit | edit source]
File:Flora near Keetmanshoop, Namibia.jpg
Tussock and various types of flora near Keetmanshoop in Namibia

Africa

[edit | edit source]

Europe

[edit | edit source]

See also

[edit | edit source]

Non-Poaceae tussocks

[edit | edit source]

References

[edit | edit source]
  1. ^ R.H. Groves, R.D.B. Whalley "Grass and Grassland Ecology in Australia" in Flora of Australia Volume 43 Poaceae 1: Introduction and Atlas, CSIRO Publishing, Canberra. "Tussock" grass implies a vertical orientation of the grass clump. In North American usage "Bunch grass" is more specific and defines a clumping, non-rhizomatous or non-stoloniferous growth form, vertical to splayed, and usually perennial with a deeper rooting system than other Poacea.
  2. ^ Crampton, Beecher. "Grasses in California. University of California Press. Berkeley. 1974. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).. p. 7 Walker, T.W. 1955 "The Ecology of Tussock Grasslands: Discussion" Proc. NZ Ecol. Soc 3:7 "One fifth of New Zealand carries tussock or bunch grass vegetation, more than other steppes, prairies, or grasslands of the world"
  3. ^ Walker, T.W. 1955 "The Ecology of Tussock Grasslands: Discussion" Proc. NZ Ecol. Soc 3:7 "One fifth of New Zealand carries tussock or bunch grass vegetation, more than other steppes, prairies, or grasslands of the world"
  4. ^ Ellsworth and Kauffman, 2010, Native Bunchgrasses Response to Prescribed fire in Ungrazed Grasslands
  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
[edit | edit source]

Lua error in Module:Authority_control at line 153: attempt to index field 'wikibase' (a nil value).

Retrieved from "http://70.231.62.181/index.php?title=Tussock_grass&oldid=5195584"