Silphium laciniatum - Compass Flower
A tallgrass species that has sunflower-like, yellow blooms. Probably the most notable features is the deeply-cut lobed leaves.
It has been given the name "compass" plant because it's leaves are known to orient themselves on a north-south axis. From the plant's perspective this characteristic is said to reduce the amount of overhead sun exposure allowing it to more efficiently regulate it's temperature.
Height : 4-9 feet (120-270cm) Spread : 1-3 feet (30-90 cm)
Blooming Period : July to September
Light : Full sun to part shade
Water : Dry to medium
Soil : Sand, loam, clay
Zone : 3-8
Native Ontario Habitat : Prairies, meadows and savannahs
Landscape Uses : Butterfly gardens, pollinator gardens, meadows and naturalized areas