At a glance starrush whitetop (Rhyncospora colorata), shown above at the Toni Robinson Waterfront Trail on July 15, 2020, appears to be a daisy. What appear to be long petals are really showy bracts that attract pollinators.
Many of its other common names — star sedge, white-topped sedge, whitetop sedge, star rush, and narrowleaf whitetop sedge — let us know that this plant is a member of the sedge family, Cyperaceae. Most sedges are wind-pollinated, but starrush whitetop attracts pollinators including the white peacock butterfly (Anartia jatrophae) seen above.
Turkey tangle frogfruit also is a larval host plant for this phaon crescent butterfly (Phyciodes phaon) …
Look for this lovely sedge along roadside ditches, as shown below along Oslo Road growing lushly with lyre-leaf sage (Salvia lyrata).