Botany demonstrations (2/9)

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A closeup of oat grass (tack oats; Avena sativa) early one morning showing guttation. The water droplets at the tips of a few of the leaves are caused by xylem fluid being pushed up and out of the leaves due to root pressure.<br />
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This guttation was not a forced demonstration; I found it occurring naturally one cool, humid morning.  I like how it's more subtle than most demonstrations.
A closeup of oat grass (tack oats; Avena sativa) early one morning showing guttation. The water droplets at the tips of a few of the leaves are caused by xylem fluid being pushed up and out of the leaves due to root pressure.

This guttation was not a forced demonstration; I found it occurring naturally one cool, humid morning. I like how it's more subtle than most demonstrations.

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Size: 3466x2145 / 3.8MB
Keywords:
  • Avena sativa
  • botany
  • closeup
  • grass
  • macro
  • water

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