Wildflowers

 Heart-leaved Alexander Zizia aptera (Parsley Family Apiaceae)

Zizia: for Johann Baptist Ziz, german botanist of late 18th and early 19th century

aptera: without wings

 

1’ to 2’ tall perennial with smooth stems. The tiny, 5-parted flowers are arranged in stalked, compound umbels. The coarsely toothed basal leaves are undivided, and heart-shaped (hence the name) at the base. The upper leaves are 1or 2 times 3-parted. 

Zizea aurea, Golden Alexanders, are also present here, but they have divided basal leaves, much like the upper leaves, and the inflorescence is more rounded.  They tend to grow in larger colonies than the Heart-leaved Alexander.  Their bloom also continues into July. 

Heart-leaved Alexanders bloom in May and June.  They prefer full sun and moderately moist, sandy soil.  Look for them along Hickerson Road and at the Visitor Center along the prairie path across the parking lot.


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