Is this weed in my garden poisonous?

Question

There’s this weed that’s popping up everywhere in my garden, I did some research and it looks a bit like poisonous hemlock, is it actually?

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Answer 1

I don't think so. Hemlock has more ferny leaves than your photo. Also hemlock has purple spots on it and pointy leaf ends. This article tells more:
https://www.gardeningknowhow.com/plant-problems/weeds/poison-hemlock-control.htm

Here is a guide to weed identification in Brisbane:
https://weeds.brisbane.qld.gov.au/