to pose as a corpse
It was tempting to use another common name of Trillium erectum, stinking Benjamin, in the last line, but that made things entirely too unambiguous, I thought. (Maybe it’s the photographer, lying on the ground, you know?) The flowers mimic the color and smell of rotting flesh to attract flies so they can have sex. (Yep, nothing like telling children about the birds and the bees to fuck them up for life!)
Savasana or corpse pose is the final asana in many yoga sessions because it is in some ways the most difficult, to fully relax with attention. Or so the internet informs me. No mention of flies, or an urgent need to get pollinated and set seed before dying back again.