''Danthonia spicata'' is a species of

grass Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns a ...

known by the common name poverty oatgrass, or simply poverty grass. It is native to North America, where it is widespread and common in many areas.''Danthonia spicata''.
The Nature Conservancy. Retrieved 2011-12-18. The species is distributed across much of Canada and the United States, and its distribution extends into northern Mexico.''Danthonia spicata''.
Grass Manual Treatment. Retrieved 2011-12-18. This perennial

bunchgrass Tussock grasses or bunch 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 perenni ...

is variable in appearance. It has no rhizomes or stolons. It grows anywhere from tall. The grass takes the form of a crowded tuft of leaves at ground level. The leaves often become curly and persist as they dry out. Plants in shady and moist areas may not have curly leaves. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...

is a narrow panicle of up to 18 spikelets. The spikelets have twisted, hairy awns. There are also some unopening,

cleistogamous Cleistogamy is a type of automatic self-pollination of certain plants that can propagate by using non-opening, self-pollinating flowers. Especially well known in peanuts, peas, and pansies, this behavior is most widespread in the grass family. How ...

florets next to the leaves, and in the panicles. There is a long-lasting

soil seed bank The soil seed bank is the natural storage of seeds, often dormant, within the soil of most ecosystems. The study of soil seed banks started in 1859 when Charles Darwin observed the emergence of seedlings using soil samples from the bottom of a lak ...

, with the seeds persisting for decades before being stimulated to

germinate Germination is the process by which an organism grows from a seed or spore. The term is applied to the sprouting of a seedling from a seed of an angiosperm or gymnosperm, the growth of a sporeling from a spore, such as the spores of fungi, fer ...

. This grass grows in many types of habitat, and it occurs in a variety of forest and grassland

ecosystem An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the syste ...

s. It grows easily on poor, dry, rocky soils, for which it owes its common name. When a habitat is disturbed, after a

wildfire A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identi ...

, for example, the seeds long-buried in the soil are stimulated and germinate, making the plant a

pioneer species Pioneer species are hardy species that are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by wildfire. Pioneer flora Some lichens grow on rocks without soil, so ...

that colonizes recently cleared land. It then becomes less common as other plant species begin to move in. It is a common member of the plant community in some ecosystems that are maintained by a

regime In politics, a regime (also "régime") is the form of government or the set of rules, cultural or social norms, etc. that regulate the operation of a government or institution and its interactions with society. According to Yale professor Juan Jo ...

of frequent fires, such as

jack pine Jack pine (''Pinus banksiana'') is an eastern North American pine. Its native range in Canada is east of the Rocky Mountains from the Mackenzie River in the Northwest Territories to Cape Breton Island in Nova Scotia, and the north-central and ...

(''Pinus banksiana'') barrens.

References

External links

* {{Taxonbar, from=Q5221221 spicata Bunchgrasses of North America Grasses of Canada Grasses of Mexico Grasses of the United States Native grasses of the Great Plains region