Plants

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Across
  1. 2. the main body or stalk of a plant or shrub, typically rising above ground but occasionally subterranean.
  2. 4. the outermost covering of the seed
Down
  1. 1. the part of a plant which attaches it to the ground or to a support, typically underground.
  2. 2. a flowering plant's unit of reproduction and has all the materials needed to develop into another plant.
  3. 3. tiny extensions or projections from the outer surface of plant roots.