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CARROT . See also:Wild carrot, Daucus carota, a member of the natural See also:order See also:Umbelliferae, grows wild in See also:fields and on roadsides and See also:sea-shores in See also:Britain and the See also:north temperate See also:zone generally of the Old See also:World . It is an See also:annual and resembles the cultivated carrot, except in the See also:root, which is thin and woody . It is the origin of the cultivated carrot, which can be See also:developed from it in a few generations . M . Vilmorin succeeded in producing forms with thick fleshy roots and the biennial See also:habit in four generations . In the cultivated carrot, during the first See also:season of growth, the See also:stem remains See also:short and bears a rosette of graceful, See also:long-stalked, branched leaves with deeply cut divisions and small, narrow ultimate segments . During this See also:period the plant devotes its energies to storing See also:food, chiefly See also:sugar, in the so-called root, which consists of the upper See also:part of the true root and the short portion of the stem between the root and the lowest leaves . A transverse See also:section of the root shows a central core, generally yellow in See also:colour, and an See also:outer red or See also:scarlet rind . The core represents the See also:wood of an See also:ordinary stem and. the outer See also:ring the soft outer See also:tissue (bast and cortex) . In the second season the terminal bud in the centre of the See also:leaf-rosette grows at the expense of the stored nourishment and lengthens to See also:form a furrowed, rather rough, branched stem, 2 or 3 ft. high, and bearing the See also:flowers in a See also:compound umbel . The umbel ischaracterized by the fact that the small leaves (bracts) which surround it, resemble the foliage leaves on a much reduced See also:scale, and ultimately See also:curve inwards, the whole inflorescence forming a See also:nest-like structure .
The flowers are small, the outer See also:
The See also:main See also:crop is sown at the end of See also: |
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