Pothos is not an Ivy. It's an aroid - completely different family.
Pothos aka 'Epipremnum aureum' NOT ' Philodendron' is a very misunderstood plant! Anything that grows vines, climbs and spreads is usually considered "ivy," and that's why its often referred too as: golden ivy, devils ivy, marble ivy, ivy arum, devils claw ivy, etc. Thus my reference to Pothos Ivy!
Then there's the differences in variegation with the leaf & stem, multiply this with hybrids & clones divided by Juvenile-adult leaves you get a very frustrating ID to your plant, not to mention in the wild a sexually mature female POTHOS plant can be pollinated via insect to make berries which have seeds!
In fact pothos is tropical plant that in the wild grows leaves of 3'+ but obviously in our tanks this is much less and the true capacity/beauty of this plant is never reached
although that does NOT hinder its capability to reduce nitrates and purify the air! The Aroid family has more then 3300 different species ATM.
In landscaping we often use ivy as 'ground cover' for beds, outlining and even purposely grow them on building faces or columns (which is ridiculously annoying when a year later we have to trim half of it down, and the roots literally grow into building!) Ivy is incredibly hearty and easily survives winters to become a nuisance, Pothos can not tolerate temps below 55°F or lower!
NASA also rated golden 'ivy'/Pothos w/e you want to call it as one of the top 3 plants to reduce indoor air pollutants!
Easier to go the traditional route when referring to Pothos due to the fact it is still listed as some type of 'IVY' in many retail settings! Thus its just as important to note this plant as golden ivy/devils ivy as it is pothos (in America) I've also seen philodendron sold as pothos!
×Go S. Vettel #1 Infiniti Redbull! 4x WDC!!! Congrats on another flawless title×
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Cheap way to decrease nitrates and keep your fish healthy: http://monsterfishkeepers.com/forums/showthread.php?t=504763