Underground Parts

∞ taproot= one main root grows downward and smaller lateral roots grow off it, generally very thick and good for breaking up compact soil

taproot

∞ fibrous roots= highly branched root system, no one larger root, grows horizontally and downward

∞ corm= base of upright stem, enlarged to store energy, corm dies as plant grows, but then a new corm is formed from the old corm

Crocus corms

∞ bulb= modified leaves, forms in layers, enlarged leaves store energy, onion is an example

Onion bulb

∞ rhizome= horizontal stem on or under the ground, roots at nodes

∞ tuber= enlarged stem underground where energy is stored, usually starch, potato is a common example

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