An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies. The length of growing seasons and period in which they take place vary according to geographical location, and may not correspond to the four traditional seasonal divisions of the year. With respect to the traditional seasons, annual plants are generally categorized into summer annuals and winter annuals. Summer annuals germinate during spring or early summer and mature by autumn of the same year. Winter annuals germinate during the autumn and mature during the spring or summer of the following calendar year.
Matricaria discoidea, commonly known as pineappleweed, wild chamomile, disc mayweed, and rayless mayweed, is an annual plant native to northeast Asia where it grows as a common herb of fields, gardens, and roadsides. It is in the family Asteraceae. The flowers exude a chamomile/pineapple aroma when crushed. They are edible and have been used in salads and to make herbal tea. Pineappleweed has been used for medicinal purposes, including for relief of gastrointestinal upset, infected sores, fevers, and postpartum anemia.
Hesperis matronalis is an herbaceous plant species in the family Brassicaceae. It has numerous common names, including dame's rocket, damask-violet, dame's-violet, dames-wort, dame's gilliflower, night-scented gilliflower, queen's gilliflower, rogue's gilliflower, summer lilac, sweet rocket, mother-of-the-evening, Good & Plenties, and winter gilliflower.
Trifolium arvense, commonly known as the hare's-foot clover, rabbitfoot clover, stone clover or oldfield clover, is a flowering plant in the bean family Fabaceae. This species of clover is native to most of Europe, excluding the Arctic zone, and western Asia, in plain or mid-mountain habitats up to 1,600 metres (5,200 ft) altitude. It grows in dry sandy soils, both acidic and alkaline, soil with dry-mesic conditions and is typically found at the edge of fields, in wastelands, at the side of roads, on sand dunes, and opportunistically in vineyards and orchards when they are not irrigated.
Amaranthus cruentus is a flowering plant species that yields the nutritious staple amaranth grain. It is one of three Amaranthus species cultivated as a grain source, the other two being Amaranthus hypochondriacus and Amaranthus caudatus. In Mexico, it is called huautli (Spanish pronunciation: [ˈwawtli] and alegría ([aleˈɣɾi.a] and in English it has several common names, including blood amaranth, red amaranth, purple amaranth, prince's feather, and Mexican grain amaranth. In Maharashtra, it is called shravani maath or rajgira. In Kerala, it is called chuvanna cheera or commonly, cheera .In Karnataka, it is called "Dantina soppu" or harive soppu.
Monarda citriodora is a species of flowering plant in the mint family, Lamiaceae, that is native to the southern United States and northern Mexico. Common names include lemon beebalm, lemon mint and purple horsemint. When crushed, the leaves emit an odor reminiscent of lemons. This odor is sometimes described as more resembling oregano, especially late in the season. Its purple flowers are highly attractive to butterflies, bees and hummingbirds.
Melilotus officinalis, known as sweet yellow clover, yellow melilot, ribbed melilot and common melilot, is a species of legume native to Eurasia and introduced in North America, Africa, and Australia.
Helianthemum nummularium is a species of rock-rose (Cistaceae), native to most of Europe.
Impatiens capensis, the orange jewelweed, common jewelweed, spotted jewelweed, jewelweed , or orange balsam, is an annual plant which is native to North America. It is common in bottomland soils, ditches, and along creeks, often growing side by side with its less common relative, yellow jewelweed.
Pentaglottis is a monotypic genus of flowering plants in the family Boraginaceae. It is represented by a single species, Pentaglottis sempervirens, commonly known as the green alkanet, evergreen bugloss or alkanet, and is a bristly, perennial plant native to Western Europe. It grows to approximately 60 cm (24") to 90 cm (36"), usually in damp or shaded places and often close to buildings. It has brilliant blue flowers, and retains its green leaves through the winter. The plant has difficulty growing in acidic soil. The name "alkanet" is also used for dyer's bugloss and common bugloss. Green alkanet is an introduced species in the British Isles.
Matthiola longipetala, known as night-scented stock or evening stock, is a species of ornamental plant.
Aurinia saxatilis is an ornamental plant native to Asia and Europe.
Erigeron philadelphicus, the Philadelphia fleabane, is a widespread North American plant in the family Asteraceae. Also known as common fleabane, daisy fleabane, frost-root, marsh fleabane, poor robin's plantain, skervish, and in the British Isles as robin's-plantain. It is native to North America and found there in nearly all of the United States and Canada. It is also introduced into Europe and Asia, considered an invasive weed in many places.
Convolvulus althaeoides is a species of morning glory known by the common names mallow bindweed and mallow-leaved bindweed. This flowering plant is native to the Mediterranean Basin, but it is occasionally seen in other areas of similar climate, such as California in the United States, where it has been introduced. This is a climbing perennial plant with solitary flowers on long peduncles. The flower is a funnel-shaped pink bloom 3 or 4 centimeters wide. The leaves are deeply divided into narrow, fingerlike lobes.
Salvia reflexa, the lanceleaf sage, Rocky Mountain sage, blue sage, lambsleaf sage, sage mint or mintweed, is an annual subshrub native to the United States and Mexico and introduced to Argentina, Australia, Canada, South Africa and New Zealand.
Amsinckia tessellata is a species of fiddleneck known by the common names bristly fiddleneck, tessellate fiddleneck, checker fiddleneck, and devil's lettuce.
Spiraea alba, commonly known as meadowsweet, white meadowsweet, narrowleaf meadowsweet, pale bridewort, or pipestem, is native to the wet soils of the Allegheny Mountains and other portions of eastern North America, but is currently endangered in the state of Missouri. It is naturalized in other parts of the world.
Convolvulus tricolor is a species of flowering plant in the family Convolvulaceae, native to Mediterranean Europe. Common names include dwarf morning-glory, tricolour convolvulus, and belle de jour.
Silene noctiflora is a species of flowering plant in the family Caryophyllaceae known by the common names night-flowering catchfly, nightflowering silene and clammy cockle. It is native to Eurasia, but it is known on other continents as an introduced species and sometimes a weed. In North America, it is a common weed of grain crops in the Canadian prairie provinces and in much of the United States. It grows in fields and in other disturbed habitat.
Verbena bracteata is a species of verbena known by the common names bracted vervain, bigbract verbena, prostrate vervain, and carpet vervain. It is native to North America where it is widespread, occurring throughout the continent except for northern Canada and southern Mexico. It occurs in many types of habitat, especially disturbed areas. It typically blooms between the months of May and October. This annual or biennial herb produces several hairy, spreading stems up to 30 centimeters long forming a low mat on the ground. The hairy leaves are toothed or lobed. The inflorescence is a spike of flowers which is dense with long, pointed, leaflike bracts each up to 8 millimeters long. Each small tubular flower is about half a centimeter wide and white to pale purple in color.
