^ Wow, bang on! Thanks!! As the name implies, it's basically a "bitter weed" with no listed "redeeming" value (to humans or animals). "Bitterweed is an annual wildflower from the aster family that frequently infests pastures, sandy ground, prairies and disturbed sites. The weedy plant has a mature height of ý to 2 ý feet and blooms with small, five to 10 petaled yellow flowers. Bitterweed gets its name from its bitter, toxic foliage that gives cow milk a bitter taste if grazed. Greater quantities of foliage ingestion can kill domesticated farm animals and horses." Here is a link that might be useful: Bitterweed

I have been looking at everything closely and I may have discovered something. When I started switching to S/H about 10 weeks ago, I also stepped up the fertilizer dosage with a different brand to 125 ppm N and started maintaining the PH at 6.0. Previousely I used much less fertilizer with RO water and paid no attention to the PH, so it was probably a drastic increase. In addition to that I've also discovered another likely problem. The light meter I use has two scales, one for sun & high intensity and a smaller scale for fluorecent. I had the height of the lights to provide appx 1500 foot candles, but on the wrong scale, it's appx 2250 on the fluorescent scale. I had noticed that the new growth over the last year was going darker on some plants (nearly purple), but other than some new growth being somewhat stunted, they seemed to be doing pretty good, nothing like this one. Could too much light, combined with too much fertilizer have caused this, particularly if you factor in the fact that it's producing a huge flower spike too? I just raised the lights 4" and am going to cut back on the fertilizer used on the plants potted in spag. I'm hoping that this poor plant will be able to adapt due to it's arial roots being in the S/H pot. I have been amazed at how well the ones that have been switched to the S/H method have done and that includes 8 Psychopsis that are in an eastern window.

They are really noxious weeds in my vegetable gardens. I let one come to flower one time just to identify it. I don't do that anymore.

Yes, Rivina humilis (Rouge Plant), thanks! I guess it is the same as this specimen, just more verdant due to being shaded. Some report the berries are edible, others claim they are somewhat poisonous to humans...