annual

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annual,

plant that germinates from seed, blossoms, produces seed, and dies within one year. Annuals propagate themselves by seed only, unlike many biennialsbiennial,
plant requiring two years to complete its life cycle, as distinguished from an annual or a perennial. In the first year a biennial usually produces a rosette of leaves (e.g., the cabbage) and a fleshy root, which acts as a food reserve over the winter.
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 and perennialsperennial,
any plant that under natural conditions lives for several to many growing seasons, as contrasted to an annual or a biennial. Botanically, the term perennial applies to both woody and herbaceous plants (see stem) and thus includes numerous members of the kingdom.
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. They are thus especially suited to environments that have a short growing season. Cultivated annuals are usually considered to be of three general types: tender, half-hardy, and hardy. Tender and half-hardy annuals do not mature and blossom in one ordinary temperate growing season unless they are started early under glass and are set outdoors as young plants. Hardy annuals are usually sown where they are expected to bloom. Quite often they reseed themselves year after year. Blooming is prolonged by cutting the flowers before the seeds can form. Typical annual flowers are cosmos, larkspur, petunia, and zinnia; annual vegetables include corn, tomatoes, and wheat.

Bibliography

See H. G. W. Fogg, Dictionary of Annual Plants (new ed. 1972).

Annual

 

a plant that completes its life cycle within a single growing season of usually two to five months. The seeds usually sprout in the spring or summer; by autumn (in temperate climates) the plant is bearing fruit and dying. Annuals include flax, millet, buckwheat, spring wheat, corn cockle, and wild oats. Annual plants that develop particularly rapidly are known as ephemerals; they often mature in four to ten weeks. Some annuals, including knapweeds and shepherd’s purse, can survive the winter in the rosette phase if germination occurs late in the season.

Annuals grow only in those regions where they can complete their growth cycle in the period of a single year. Their numbers are greatest in desert areas and fewest in tundras. Annuals are most common where the plant cover is the least dense. In areas where dense plant cover is present, as in meadows, the annuals generally obtain supplementary nourishment through parasitism or symbiosis; these annuals include such hemiparasites as Alectrolophus, eyebright, and cowwheat, as well as such mycotrophic plants as clover, alfalfa, and gentian. As growing conditions worsen (with increasingly higher latitudes in the northern hemisphere or higher elevations in the mountains), the number of annual plants declines. Some species that are not able to complete their life cycle in harsh conditions in one year become perennials; an example is annual blue grass, which becomes a perennial in arctic and alpine settings.

annual

a plant that completes its life cycle in less than one year
References in classic literature ?
Soon, however, he received from the government as a recognition of his poetic achievement a permanent annual pension of two hundred pounds, and in 1847 he published the strange but delightful 'Princess.
Round the semicircle on the south side of the little privet hedge two rows of annual larkspurs in all their delicate shades have been sown, and just beyond the larkspurs, on the grass, is a semicircle of standard tea and pillar roses.
The Vernon Hotel at which The Twelve True Fishermen held their annual dinners was an institution such as can only exist in an oligarchical society which has almost gone mad on good manners.
On the occasion of their annual dinner the Fishermen were in the habit of exposing all their treasures, as if they were in a private house, especially the celebrated set of fish knives and forks which were, as it were, the insignia of the society, each being exquisitely wrought in silver in the form of a fish, and each loaded at the hilt with one large pearl.
Just as his more fortunate fellow New Yorkers had bought their tickets to Palm Beach and the Riviera each winter, so Soapy had made his humble arrangements for his annual hegira to the Island.
Crisparkle during the last re-matching of the china ornaments (in other words during her last annual visit to her sister), after a public occasion of a philanthropic nature, when certain devoted orphans of tender years had been glutted with plum buns, and plump bumptiousness.
This year's ARC International Awards for best annuals gave a nod for Best Cover to Coca-Cola's largest bottler in Mexico and Argentina, Coca-Cola FEMSA.
But first, let's take a closer look at the problem with annuals as they are typically grown in our gardens, transplanted from plastic cells.
Most analysts compare three consecutive annuals, looking for year-to-year consistency.
Because an annual report is one of the few communication documents a chairman or CEO will take interest in, it's especially rewarding to hear a client tell us that the people in the corner offices also rely on our annuals to help with marketing, recruiting, and public affairs," says Dan O'Brien, co-founder of MPP.
Clearly, all of this means that those making the list of "World's Best" annuals enjoy better company.
not to mention thousands of annuals published by government agencies, nonprofits and other private groups.