The pink and yellow flowers look like violets (Viola), as do the leaves near the flowers. I don't know the species.

The blue in the 1st pic is centaura cyanus aka annual bachelor button. The tall yet to bloom appears to be cosmos bipinnatus aka annual cosmos. The red vine is lathyrus odoratus an annual sweet pea. The last pic appears to be verbena bonariensis hanging out over the side. You can indeed collect seed from these. Some of them will automatically reseed themselves if had been ground planted.

"Conyza canadensis can reach 2 m in height and exceptionally large specimens can reach 3.5 m. From what I can father from the Flora of North America it appears that Conyza sumatrensis doesn't occur in North America." OK thanks. Can someone show me where the "bracts" are in this picture? The link below has higher resolution photos. Here is a link that might be useful: photos

Hello Leftwood. I would like to do a trade with you. I need more Allium stellatum as I could only collect about a dozen seeds. Also would like Penstemon grandiflora. And any more natives that you think would be good to add to my wildflower collection. The zagadanus is native from Meeker co. as are almost all others. I forgot to add Lilium philadelphicum to my list above. Can you send me email please?