''Brachypodium pinnatum'', the heath false brome
or tor-grass, is a species of grass with a widespread distribution in temperate regions of the
Northern Hemisphere. It typically grows in
calcareous grassland
Calcareous grassland (or alkaline grassland) is an ecosystem associated with thin basic soil, such as that on chalk and limestone downland. Plants on calcareous grassland are typically short and hardy, and include grasses and herbs such as clover ...
, and reaches tall. The
flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanism ...
head is open, with 10 to 15 erect
spikelet
A spikelet, in botany, describes the typical arrangement of the flowers of grasses, sedges and some other Monocots.
Each spikelet has one or more florets. The spikelets are further grouped into panicles or spikes. The part of the spikelet tha ...
s.
Distribution
The plant can be found in such US states as
California
California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...
,
, and
Oregon
Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idah ...
.
[
]
Ecology
The caterpillar
Caterpillars ( ) are the larva, larval stage of members of the order Lepidoptera (the insect order comprising butterfly, butterflies and moths).
As with most common names, the application of the word is arbitrary, since the larvae of sawfly ...
s of some Lepidoptera use it as a food plant, e.g. the Essex skipper (''Thymelicus lineola''). It is also one of the most important host grasses for Auchenorrhyncha
The Auchenorrhyncha suborder of the Hemiptera contains most of the familiar members of what was called the "Homoptera" – groups such as cicadas, leafhoppers, treehoppers, planthoppers, and spittlebugs. The aphids and scale insects are the ot ...
in central Europe.[Nickel, H. (2003). ''The Leafhoppers and Planthoppers of Germany (Hemiptera, Auchenorrhyncha): Patterns and Strategies in a Highly Diverse Group of Phytophagous Insects''. Sofia, Moscow: Pensoft and Keltern: Goecke & Evers.]
See also
*''Brachypodium distachyon
''Brachypodium distachyon'', commonly called purple false brome or stiff brome, is a grass species native to southern Europe, northern Africa and southwestern Asia east to India. It is related to the major cereal grain species wheat, bar ...
''
References
External links
Tor Grass page
from th
Brachypodium.org
pinnatum
Grasses of Africa
Grasses of Asia
Grasses of Europe
Taxa named by Palisot de Beauvois
{{Pooideae-stub
ca:Brachypodium#Brachypodium pinnatum