It's not a bulb, but is it a geophyte?

Dennis Kramb
Sun, 23 Jan 2005 10:14:21 PST
I grow some Opuntias here in Ohio with roots just like that.  I think mine 
are O. compressa, and O. humifusa.

Dennis in Cincinnati

At 12:50 PM 1/23/2005, you wrote:
>One cactus that I grow produces underground tubers (I suppose they are tubers
>and not rhizomes, etc.).  The root system reminds me of a Dahlia, but the
>enlarged roots tend to be long and cylindrical in shape.
>LINK:  Opuntia macrorhiza and roots (pads shriveled for winter)
>Joe Shaw
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