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The first (primary) umbel occurs at the end of the main floral stem; smaller secondary umbels grow from the main branch, and these further branch into third, fourth, and even later-flowering umbels.
A large, primary umbel can contain up to 50 umbellets, each of which may have as many as 50 flowers; subsequent umbels have fewer flowers.
At first, it grows a rosette of leaves while building up the enlarged taproot.
Fast-growing cultivars mature within three months (90 days) of sowing the seed, while slower-maturing cultivars are harvested four months later (120 days).
The United Nations Food and Agriculture Organization (FAO) reports that world production of carrots and turnips (these plants are combined by the FAO) for the calendar year 2013 was 37.2 million tonnes; almost half (~45%) were grown in China.
sativus) is a root vegetable, usually orange in colour, though purple, black, red, white, and yellow cultivars exist.
Carrots are a domesticated form of the wild carrot, Daucus carota, native to Europe and southwestern Asia.
Subsequent leaves are alternate (with a single leaf attached to a node), spirally arranged, and pinnately compound, with leaf bases sheathing the stem.
As the plant grows, the bases of the seed leaves, near the taproot, are pushed apart.
The plant probably originated in Persia and was originally cultivated for its leaves and seeds.