Barrel cactus,Echinocactus and Ferocactus & Hedgehog Cactus.
Check out the all new Glossary of terms that is full of useful words and definitions that are related to cacti. Also find out What's in a name by visiting the Cacti Etymology pages. Learn how a cactus plant got it's name or what the name means. One page covers the different genera while the other handles the species names. The CactiForum is a great place to share and learn with other Cactus enthusiasts. We've got a great group of members already and always welcome new members. Cacti knowledge is not a requirement here, it is a result! Click here to go to the cacti forum. I have this cactus for a while and I have no clue what type it is.. It has a stem with a heart-shaped cactus thing on top. There is also another stem growing out of it with leaves that are pare-shaped. The thorns are short and reddish/black. Add your answer.  I recently purchased a beautiful Indoor Cactus (as the tag on the home depot sticker refers to it) and I do not know what kind of cactus it is, and therefore am having trouble finding out how to take care of it. It does say cactaceae on the tag also. I have never owned a cactus before. The one I chose is a cactus that does not have any thorns or prickers (I'm not even sure what they're called!), and currently does not have any flowers. I don't know if it ever does. The leaves look like the cartoon charachter SHREK's ears. we bought a cactus. it is about 7feet tall and has arms going out from the bottom of it to the top. it is 3 sided with the poky things running along the edge of the 3 sides. the main 'trunk' is about 2 to 3 inches in diameter, the arms range from a few inches to a couple of feet long. Additional Details.  A cactus (plural: cacti, cactuses, or cactus) is a member of the plant family Cactaceae within the order Caryophyllales. The word cactus derives, through Latin, from the Ancient Greek κάκτος, kaktos, a name originally used by Theophrastus for a spiny plant whose identity is not certain. Cactus spines are produced from specialized structures called areoles, a kind of highly reduced branch. Areoles are an identifying feature of cacti. As well as spines, areoles give rise to flowers, which are usually tubular and multipetaled. Barrel cactus take on a globular shape when young, which could be more than 30 years. Then, most will become columnar. It is possible to have a barrel cactus that is two feet wide by seven feet tall. Two of the most popular genera of barrel cactus are Echinocactus and Ferocactus. Most people have heard of the Golden Barrel cactus (Echinocactus grusonii), which can grow to be 24 inches wide the 36 inches tall. Type 1 - Hedgehog Cactus. Typically, these are the Echinocereus, which have stems from two inches to 24 inches tall that grow from a single base. The first part of the genus name Echinocereus comes from the Greek word for 'hedgehog', while the second part 'cereus' comes from the Latin for 'large candle'. Before you start trying to put a name on your cactus, make sure it actually is a cactus first! To do this, first check the  Cacti or Not  page. Then come back here to see the top 10 most requested cacti IDs. Here are the 10 most common cacti.  Save. cactus image by KALISTE A from Fotolia.com. Cacti come in all kinds of shapes, colors and sizes. Perhaps out of curiosity you want to know how best to take care of your cactus, or maybe you just want to know what to tell your friends when they ask you about it. This is the easiest of methods for discovering the type of cacti you own. Simply look up the characteristics of the cactus in the field guide (types of flower, size, shape, color, etc) and see if you can find a cactus that closely resembles yours. The tallest free-standing cactus is Pachycereus pringlei, with a maximum recorded height of 19.2 m (63 ft), and the smallest is Blossfeldia liliputiana, only about 1 cm (0.4 in) in diameter at maturity. Cactus spines are produced from specialized structures called areoles, a kind of highly reduced branch. Areoles are an identifying feature of cacti. As well as spines, areoles give rise to flowers, which are usually tubular and multipetaled.
http://cactiguide.com/ https://answers.yahoo.com/question/index?qid=20130310124713AAuN4uf http://en.allexperts.com/q/Cactus-710/kind-cactus.htm http://www.gardeningadvisors.com/what-kind-of-cactus-do-i-have-t1326.html https://en.wikipedia.org/wiki/Cactus http://www.cactusbylin.com/category/8272104 http://www.cactiguide.com/most_common/ http://www.ehow.com/how_6351482_out-kind-cactus.html https://en.wikipedia.org/wiki/Cactus
what kind of cactus do i have