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Common Milkweed (Asclepias syriaca)

 

Noxious Weeds

- or Are They?

by Nicole H. Brauner

 

"Oh, this is beautiful!" I sighed.  My fiancé had brought me out to his property in the neighboring state several months before we married.  It was wintertime, and little black birds were feeding on some grain that he had set out in feeders, on top of a thick layer of white snow.  "There are hundreds of tulips buried underneath that snow," he mentioned, pointing towards the feeders, "In the spring it will remind you of home."

"Home" was Holland, or The Netherlands, where I grew up.  After an extensive period of traveling, I ended up in Idaho, eventually met my husband and moved to his home on almost six acres, in the state of Oregon.  The little black birds, I later found out, were quail, the grain was cracked wheat, and as he had mentioned, hundreds of tulips emerged this spring from under that snowy cover.  It was a gorgeous sight!  Being raised in a country that is one of the largest flower-producers in the world, I loved anything that bloomed, blossomed or simply grew out of a tiny seed; so as soon as the weather allowed, the dogs and I went exploring beyond that large strip of flower beds in the backyard to see what else was growing on our acreage.

It had been several years since any livestock had lived on the property.  Both the pasture and the wooded area behind our house proved to contain an amazing wealth of new flowers and plants, many of which I had never seen before, but were oh-so-pretty!  Beautiful purple flowers on high spikes mingled with reeds on the side of the irrigation canal, lovely strands of white and pink morning glory covered large patches of pasture, and all along the driveway we had hardy green groundcovers with cute little yellow flowers.  As the days grew longer and the weather warmed up, more and more plants and flowers would appear, sporting the most interesting leaves, flowers and colors.  One of my desires was to create a butterfly garden on our property, and I was delighted to see nature had provided such a colorful and diverse start.

Purple Loosestrife (Lythrum salicaria) amidst cat-tails

However, I wasn't so enthusiastic about those odd stalks that grew all over the property, sometimes in clusters and sometimes by themselves, with large silvery leaves and little, clustered star-shaped flowers.  They didn't look pretty, and they didn't smell nice as far as I could tell, so my practical mind and attitude went to work and I spent the whole day yanking these odd intruders out of the soil.  Besides being offensive to my sight, they were also excreting a milky substance which was surely highly poisonous!  As to prove my point, that night I broke out in a rash which first sent me searching through our bathroom drawers for an anti-itch cream, and then onto the Internet to find out what this horrible plant could be, but most of all, how to get rid of it for good!

The search proved to be an eye-opening, and horrifying, experience.  Typing "noxious weeds" into the search bar took me to the USDA national database with a large listing of all noxious and invasive weeds, by state.

(http://plants.usda.gov/cgi_bin/topics.cgi?earl=noxious.cgi)

As none of the scientific, nor common names, meant anything to me, I decided to click on each listing separately and look at the photographs included, to see if I could identify this plant.  And as I viewed and read about each weed, my heart sank deeper and deeper.  The groundcover that graced our driveway turned out to be Puncture-vine (Tribulus terrestris), a weed that grows burs so hard it can puncture bicycle tires (imagine what it will do to your foot!).  The purple spikes at the edge of the irrigation canal are Purple Loosestrife (Lythrum salicaria).  It aggressively pushes out plants with nutritional value for wildlife but offers none itself, and the "Morning Glory" is none other than "agriculture's twelfth most serious weed species", the infamous Field Bindweed (Convolvulus arvensis) which seed can remain viable in the soil for fifty years.  But worst of all, the milky stalks I had been removing from our acreage, were part of the one plant that would feed the butterflies I so longed to provide for, the common milkweed (Asclepias syriaca).

 

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