annual plant

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annual plant

any plant that germinates from seed, grows to maturity and produces new seed all within one year or growing season. Since the life-cycle duration is so short, annuals are usually herbaceous rather than woody. Examples include groundsel, shepherd's purse. See BIENNIAL, PERENNIAL.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Producers are seeing both summer and winter annuals popping up in their fields, said Manuchehri.
You can also plant winter annuals such as geraniums, pansies and petunias for bursts of color.
What makes stinkwort's life cycle rather unusual is that it matures much later in the season than most annuals, even other late-season winter annuals (fig.
Just last year, we expanded the Authority line of herbicides for soybeans to include Authority XL, which offers best-in-class pre-emerge and burndown chemistries to control a broad spectrum of summer and winter annuals.
Annual ryegrass can be an excellent forage for a year-round grass fed beef program since it has a longer productive growing season than other winter annuals (like cereal grains or cereal rye) and is more nutritionally balanced.
In most vineyards of the western U.S., the largest group of weeds by species and total biomass are winter annuals. These plants germinate in the fall, overwinter as low-growing basal rosettes of leaves, and then rapidly grow and bloom in the spring.
Two categories of annuals are summer annuals and winter annuals.
Winter annuals, such as common chickweed and annual bluegrass, germinate in late summer or early fall, overwinter in a dormant state, and continue to grow the following spring.
Winter annuals germinate at cooler soil temperatures.
Feed annuals Zones 7-9, 14-17: Even in cool weather, winter annuals need nutrients for root development.
"Every El Nino, you get a lot of winter rain, and the land is covered with a 'green-up' of winter annuals that make up the spring desert wildflower display." (Half of the plant species in the Sonoran desert are annuals, with 60 to 80 percent of those winter annuals.) "Otherwise, the soil between the shrubs is bare.