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Either is correct: cactuses' or cacti's.

The apostrophe only is used when a plural is formed by S or ES, to indicate that an additional S sound is not added. When a plural does not end in S, the ordinary possessive (apostrophe-S) is used.

Both cactuses and cacti are acceptable plurals for cactus.

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Wiki User

12y ago
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Wiki User

10y ago

The plural forms for cactus are cacti or cactuses, both are accepted.

Some words that come from Latin, such as cactus, stimulus, nucleus, and radius, still act as they did in Latin. That is, they form a plural by replacing the -us with -i. For some words (such as radius) the ordinary English rules of plurals are often used. Many words that end in -us (such as octopus) are not from Latin, but the -i plural is mistakenly applied.

Singular ends in -us/Plural ends in -i:

  • alumnus/ alumni
  • bacillus/ bacilli
  • cactus/ cacti
  • nucleus/ nuclei
  • stimulus/ stimuli
  • focus/ foci
  • radius/ radii
  • terminus/ termini
  • villus/ villi

Of course to confuse the issue further, the English plural of "virus" is "viruses" not viri; and the word platypus forms the plurals platypus or platypuses, not platypi.

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Wiki User

11y ago

The plural form without an 's' is cacti.

Another accepted plural for cactus is cactuses.

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Wiki User

15y ago

The plural of cactus is cacti. The regular form of cactuses is also acceptable.

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Marin Sullwold

Lvl 2
3y ago

Cacti is the plural of cactus.

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Anonymous

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3y ago

You aren’t __________ brighter than him.

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Q: What is the plural possessive of cactus - cactuses' or cacti's?
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Related questions

What is the singular possessive form of cactus?

There are two accepted forms for possessive singular nouns ending in s:Add an apostrophe (') after the existing s at the end of the word: cactus'Add an apostrophe s ('s) after the existing s at the end of the word: cactus'sExamples:The night blooming cactus' name is Queen of the Night.The night blooming cactus's name is Queen of the Night.


What is the English plural and the foreign plural of the word cactus?

The plural forms for cactus are cacti or cactuses, both are accepted.


Is Cactus singular or plural?

Cactus is singular. The plural forms are cacti or cactuses, both are accepted.Examples:I saw a cactus at the national park.I saw some cacti at the natural park.We have several flowering cactuses in stock.


What does cacti mean?

Cacti and cactuses are the two the plural forms of cactus.


Is it cactuses or cacti?

cactus for a single plant cacti for plural


How is catuses spelled and what is its plural form?

I think you are going for cactus, any of several kinds of spiky desert plant. You can use either cacti or cactuses as the plural form.


What is the native habitat of cactuses?

Cacti (plural for Cactus) are native North and South America.They can be found in a variety of ecosystems from desert, grassland, savannah, forest and even in rain forests.


What is a the plural possession of a noun?

Depends on the noun. Apple would be apples' in the plural possessive. Cherrywould be cherries'. Monkey, which would be monkeys'. Cactus would be cacti's. Chorus would be choruses'. There are many other examples out there. *To make the plural possessive add and apostrophe after the 's'. The boys lied to their mothers. Boys = plural. The boys' mother were very angry. Boys' = plural possessive.


Is phenomenon plural for cactus?

No. The plural word for a cactus is cacti.


Is coaster's possessive or plural?

Coaster's is singular possessive. The plural is coasters, the plural possessive is coasters'.


Do you say major phenomenas or phenomena?

It is phenomena. Answer 2 Phenomena is the plural of phenomenon. But a lot of people don't realise that. In the same way as criterion is the singular pf criteria. You hear people say things like 'the criteria I want for my loudspeakers is clarity'. There's only one 'criteria' here so it should be 'the criterion I want for my loudspeakers is clarity'. I've also heard people refer to cactis. The plural of cactus is cacti. So you don't pluralise it again by saying cactis.


Is its' plural possessive?

No. Plural possessive is "their" Possessive pronouns do not use an apostrophe.