I personally find telling Zamia cones apart a bit difficult, but some rules of telling them apart is 1) male cones are tall and skinny (relatively), 2) male cones tend to be made in much larger numbers (most female plants make 1-2 cones, maybe a few more, while males make up to have a dozen or more), 3) female cones last a lot longer (male cones only a week and then they dry up) 4) it is best to have a male and female coning at the same time and THEN you can easily tell them apart- female cones are fatter, shorter and have bigger shields.

Below are some Zamia cones and frankly I cannot tell all them apart (male from female that is). I think these are all male (cone on far left is not a Zamia... think that's a male Ceratozamia cone)

these I know are male cones of Zamie encephalartoides

this is a Zamia integrifolia female cone

these, despite their numbers are female cones (Zamia loddegesii)

I think these are male cones of Zamia neurophyllidia

these are female cones of Zamia vasquezii

And this monster is a female cone of a Zamia lindeniana!

Sadly I have no photos of Zamia furfuracea, male of female cones... sorry.

Thanks for the info.

Yeah, the problem for me is, I don't live in an area where zamias are hardy, so I grow mine in a pot. But it's only a single plant so I have no others to compare it to. I can clearly see that there is only a single cone, but then the plant is fairly young and small, so there's a possibility that even if it's male, it is only mature enough to produce a single cone.

Perhaps the comment about male cones only lasting a short period of time will be the most helpful in identification.

Also, I'm not 100% sure of the id of the plant, because I got it at a garden center (Lowes or Home Depot) and it wasn't tagged. I'm certain it's a zamia, and from what I've read furfuracea is the most commonly available species, so I just assumed that's what I must have.