Eryngium

Eryngium planum ‘Blue Glitter’.  The common name is Flat Sea Holly.

Link to Eryngium planum:

A closer look at the Eryngium planum, attracting a few soldier beetles.  I noticed a few postings around the internet suggesting that this plant stinks like cat poop.   So I went back to this plant to check it out.  Yes, it really does smell like cat poop up close.  That is probably what makes it attractive to insects.

Link to previous post on soldier beetles:

Another species of Eryngium in the gardens, planted fairly close to the first one, this is Eryngium zabelii ‘Big Blue’.  The common name for Eryngium zabelii is also Sea Holly.   One might think Eryngium is some kind of a thistle but they are not related to thistle at all.   Rather surprisingly they are part of the Apiaceae, the carrot family.

Link to Eryngium:

Also in these gardens you can find our native Eryngium, this is Rattlesnake Master (Eryngium yuccifolium).  Eryngium yuccifolium is a distinctive plant of prairie habitats.

Link to previous post on Rattlesnake Master:

All pictures were taken June 7, 2012 at Purdue Horticulture Gardens.

Chameleon Plant

Chameleon Plant (Houttuynia cordata) at Purdue Horticulture Gardens.  This plant has the potential to become invasive.  Picture taken May 28, 2012.
 
Link to Houttuynia cordata:

Link to Houttuynia cordata:

Link to invasive potential of Houttuynia cordata:

Houttuynia cordata is native to Asia.  It's in the Saururaceae, which is a small plant family which also includes our native Lizard's Tail (Saururus cernuus)

Link to Saururaceae:

Link to Houttuynia cordata in Flora of China:

Link to edible Houttuynia cordata: