[APWG] Article: Two native forb "winners" in chemical war with spotted knapweed

[Riibe, Lindsey]

A short story from the In Defense of Plants blog, "The Enemy of My Enemy is
My Friend"
http://www.indefenseofplants.com/blog/2017/6/12/the-enemy-of-my-enemy-is-my-friend

Not all native plants are equally susceptible to spotted knapweeds effects.
Two native forbs stand out above the rest in being able to cope with the
allelochemicals released by spotted knapweed. Enter silky lupine (*Lupinus
sericeus*) and blanketflower (*Gaillardia grandiflora*). Where these plants
occur alongside spotted knapweed, other natives seem to do a bit better.
This made researchers curious. What was it about these two species?

​2006 research paper sited in the story:​
Oxalate contributes to the resistance Gaillardia grandiflora and Lupinus
sericeus to a phytotoxin produced by Centaurea maculosa
​
https://www.researchgate.net/publication/7375276_Oxalate_contributes_to_the_resistance_Gaillardia_grandiflora_and_Lupinus_sericeus_to_a_phytotoxin_produced_by_Centaurea_maculosa
​

​Anyone know of other studies on native "winners" known to neutralize
 allelopathic toxins ​of invasive weeds?



Lindsey Riibe
Bureau of Land Management
Plant Conservation Program Assistant
503-808-6230

National Seed Strategy for Rehabilitation and Restoration
<https://www.blm.gov/programs/natural-resources/native-plant-communities/national-seed-strategy>
Plant Conservation Alliance <http://www.plantconservationalliance.org/>
Seeds of Success
<https://www.blm.gov/programs/natural-resources/native-plant-communities/native-plant-and-seed-material-development/collection>
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