Calling all plant geeks

In the Company of Plants and Rocks is hosting June's blog carnival at Berry Go Round, featuring all things botanical.  This is a challenge to geobloggers as well.  The deadline is approaching so get your creative juices going.  Plants, pests, pathology, seeds, weeds, wildflowers, food, fuel, fossils, science, art, music ... the possibilities are endless.

This morning was our first calm one in a week, completely still with nothing to disturb the white decor (aka litter, trash) that had blown in yesterday and now festoons the vegetation along the tracks.  Or is that trash?

No! All those pieces of white plastic actually are evening primroses, still open this morning.

Nuttall's evening primrose, Oenothera nuttalli; flowers ca 2 inches across, with buds above.

4 sepals, 4 petals, 8 stamens and a 4-parted stigma -- must be Onagraceae, the evening primrose family.