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The name Kentucky bluegrass derives from its flower heads, which are blue when the plant is allowed to grow to its natural height of 60 to 90 cm (2 to 3 feet). [ 9 ] Poa pratensis is the type species of the grass family Poaceae .
Poa annua, or annual meadow grass (known in America more commonly as annual bluegrass or simply poa), is a widespread low-growing turfgrass in temperate climates. Notwithstanding the reference to annual plant in its name, perennial bio-types do exist. [2] This grass originated as a hybrid between Poa supina and Poa infirma. [3]
Poa trivialis (rough meadow-grass), showing the ligule structure. Poa [2] is a genus of about 570 species of grasses, native to the temperate regions of both hemispheres. Common names include meadow-grass (mainly in Europe and Asia), bluegrass (mainly in North America), tussock (some New Zealand species), and speargrass. Poa is Greek for 'fodder'.
Cool-season grasses, such as Kentucky bluegrass, fescues, and perennial ryegrass, planted in cold regions go dormant in winter too. A dormant lawn is not absorbing water or nutrients.
The relationship between the traits and climates of P. spicata is consistent with those of other grass species that also have a summer growing season. Populations of P. spicata from warm, arid environments are often smaller with earlier phenology, narrower leaves, and have greater leaf pubescence.
Poa secunda (variously known by the common names of Sandberg bluegrass, [2] [3] [4] alkali bluegrass, [4] big bluegrass, [4] Canby's bluegrass, [2] Nevada bluegrass, [4] one-sided bluegrass, [3] Pacific bluegrass, [2] pine bluegrass, [2] slender bluegrass, [2] wild bluegrass, [4] and curly bluegrass [1]) is a widespread species of perennial bunchgrass native to North and South America. [4]
When seeded as part of a diverse mixture, planting guidelines for warm-season grass mixtures for conservation plantings should be followed. Regional guidelines for growing and managing switchgrass for bioenergy or conservation plantings are available. Several key factors can increase the likelihood of success for establishing switchgrass.
Bouteloua gracilis, the blue grama, is a long-lived, warm-season perennial grass, native to North America. [2] [4] [5]It is most commonly found from Alberta, Canada, east to Manitoba and south across the Rocky Mountains, Great Plains, and U.S. Midwest states, onto the northern Mexican Plateau in Mexico.
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