Plants that collect water on the top
Posted 30 May 2009 - 09:36 AM
Distinguishing Features: Abundant carbon dioxide means the pagoda trees grow to more than half a mile tall. Cuplike crowns above the canopy collect rainwater to keep the uppermost limbs hydrated.
Closest Earth Cousin: Giant sequoias, but their growth is limited by the ability of the tree's vascular system to deliver water hundreds of feet up.
Posted 30 May 2009 - 04:12 PM
The purple pitcher plant collects rain in order to drown insects and digest them.
Nepenthes ampullaria has a similar setup, but is suspected of being herbivorous, capturing falling leaves, soaking them in water, and digesting them for their minerals and nutrients.
There may well be others, but these are the two that I know of. Neither use the water to keep hydrated, as both live in very damp, boggy habitats.
Posted 30 May 2009 - 04:48 PM
there are also "Air plants" that have no roots per se and get moisture from the air (you don`t have to water them).
Posted 30 May 2009 - 11:19 PM
closest cousin the sequoia? its not even a conifer.!
I'd like to see a link to something about this otherwise I'm just going to assume this is a joke.
I've heard of plants that colonize the tops of other trees that collect water like that though.
Will you eat or are you afraid it will bite you?
Posted 30 May 2009 - 11:37 PM
Perhaps if the basin were capable of retracting itself during heavy sunshine and waiting until rain begins to fall before opening its water-catching apparatus, it would make more sense. The picture shows only one kind of plant so there doesn't seem to be any competition for water at that height. Is it assumed that the pagoda tree has a root system for the lower portions?
My biggest problem is the absolute ignorance of the others who post here.
Posted 31 May 2009 - 12:30 PM
But I am talking about Earth conditions. If a plant on Earth is holding water on the top via leaves like a bromeliad and supported by a trunk.
And also just like bromeliads their water supply will feed other animals that live in water and also sustain a small ecosystem.
Will this still work?
Posted 8 June 2009 - 11:41 AM
The pineapple is part of the bromeliad family that also have a basin to collect water.
Posted 8 June 2009 - 12:05 PM
Posted 8 June 2009 - 12:26 PM
There are more, but it's really hard to find out the name of a plant if you don't even know in which country it grows.
I am not sure that any plant actually collects water from the top with the purpose of using it for photosynthesis (or for even absorbing it at all). I think that if water is limited, it's better absorbed through roots, and then stored inside. Somehow I have the feeling that this will be more efficient because it will limit the evaporation.
Plants may be capable of absorbing some water through the leaves though.
Posted 8 June 2009 - 12:44 PM
Wouldn't it still be limited by a need to transport nutrients to the top? Or maybe there's some kind of hydraulic circulation or something? Also, why would it evolve to be that tall? Just intense competition for sunlight?
If the plant also collect water from the roots and also get 25% more water from the basin on top
I managed to find out from the scientists that made the program that the height limit of plants here on earth is limited by the height which the water tubes in the stems can go. So I am guessing that the water from the top can ensure that the plant's tissues that are beyond the height limit of the plant can get hydrated from the water in the basin. A two way water collecting system perhaps?
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