Unusual weed ID

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Posted by hortster 6A, southcentral KS (My Page) on

Fri, Nov 6, 09 at 12:00

I found this in my garden growing under a tomato plant that got tossed this fall. At first I thought that it was some kind of dandelion, but when I pulled it I found that it had no tap root, but rather, a large bundle of fibrous roots that were about 1/16-3/32" in diameter. The thing that caught my eye are the distinctly triangular, very large leaf tips. Anyone seen this one? TIA
hortster

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RE: Unusual weed ID

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Posted by maifleur 5b-6 MO (My Page) on
Fri, Nov 6, 09 at 18:17

It is a member of the lettuce family. Normally would have a tap root but because it does not probably plant was cut off with a bit of crown root tissue and regrew.

This is one of the ones that I like to watch. Next year it would put up a tall 4-8 foot stalk with either yellow or blue flowers. The finches like the seeds so seldom do I have more than one or two plants.

RE: Unusual weed ID

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Posted by hortster 6A, southcentral KS (My Page) on
Sat, Nov 7, 09 at 11:27

Thanks, maifleur. The closest I could get from my references was yellow starthistle (Centaurea solstitialis), but the foliage just doesn't seem to be a perfect match. When I get a chance I will go through a few in the genus Lactuca.
hortster

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