Nature

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Across
  1. 3. claims to be good for your eyesight
  2. 4. they adorn trees in green
  3. 6. like green hair decorating the floor of the earth
  4. 8. they hike across the sky looking fuzzy
  5. 9. like maps to natives, like diamonds to us
Down
  1. 1. flows rapidly and free
  2. 2. shoot up from the ground in an array of colours
  3. 5. their sturdy trunk makes excellent houses
  4. 7. it accompanys damp rocks like a fuzzy green blanket