Posted on April 24, 2015
By Michael Griffiths
Sunrise: 05. 59 Sunset: 08.17
Category: Wilden Marsh Nature Reserve
I learned about this plant last evening… but not in a good way… at Weed Watcher training sponsored by our Soil and Water and Conservation District. The focus was to educate the public about identification and reporting of weeds that have been given priority for removal from forests and riparian zones.
Here in Oregon, Yellow Archangel is on the EDRR list… the Early Detection/ Rapid Response hit list of plants the state considers to be the next wave of invasive species that will be difficult/ if not impossible to eradicate if the species is allowed to go unchecked. Yellow Archangel rapidly forms a dense mat, like English Ivy, outcompeting and smothering native plants… it can quickly invade forested areas and stream banks.
Is it a problem there?
Thanks for your detailed comment. Yellow archangel is not such a problem in Hoo Wood. It grows in one very shades area, against a fence.
I guess the patch of yellow archangel at 50 feet long X 3 foot wide. It’s been growing in the shaded area for as long as I can remember.
That is intriguing, Mike. I’m confused why the plant is not invasive in your wooded ecosystem, and yet, is considered with fear here as a potential invasive. I’d appreciate any further thoughts you might share about this specie’s behavior. What holds its population in check??
I don’t know why the yellow archangel is not more invasive in Hoo Wood, Jane. It is certainly one of the slowest spreading plants in the wood. It does exist high up on the ridge path, but only as single stalks, and it has been this way for as long as I can remember. Each year I check all the area where yellow archangel is growing, and if it is spreading at all, it is doing so very slowly.
The main concentration of YA in Hoo Wood is in a damp shaded area along a fence edge, and even this is now has becoming hidden by nettles that are growing through it.
Thanks, Mike. It’s interesting to put plants into perspective. What’s a wildflower and welcome in your woods is a much disdained and unwanted invader in our woods. I appreciate your thoughts.
The huge invader in Hoo Wood and on the marsh is Himalayan balsam, Jane. It covers the ground more closely than grass and grows eight foot tall in places.
Yellow archangel and Himalayan balsam are easily pulled from the ground, so with effort it can be eradicated in small areas. You have to attack it year after year to make a lasting difference.
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