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yaaqov wrote

Hell yeah! Most plants in the dandelion tribe produce latex, including common weeds like prickly lettuce that grow across the northern hemisphere.

A neat thing about prickly lettuce, and other lettuces, in particular, is that their latex is also psychoactive, having similar qualities to a mild opiate, in terms of pain relief, drowsiness, etc. They used to use it as a opium substitute a century or two ago, under the name lactucarium.

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ziq OP wrote

all lettuces are pretty much identical to prickly lettuce. they revert back to the wild form if you leave them to grow feral for a few generations.

Fig trees seem to have a lot more latex than dandelions, I wonder why they don't use them to make rubber.

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yaaqov wrote

Woah, cool! Do you know if that’s true of like, brassicas and stuff? Like would broccoli become wild mustard? Just as an example, I know you don’t like brassica much.

And yeah hmm. I think the article said something about having to test the dandelion latex to see if would work—perhaps something about fig latex just isn’t amenable to rubber making.

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ziq OP wrote (edited )

I let my collards and kales self seed and they remain collards and kales generation after generation. They don't seem to readily cross pollinate with the wild mustards that grow nearby, but it is possible to hybridise them so I imagine they'd eventually revert to a wild form:

http://www.brightseeds.co.uk/products/utopia_mustardkale_hybrid_gamecover/56/

https://www.vox.com/xpress/2014/8/6/5974989/kale-cauliflower-cabbage-broccoli-same-plant

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