Invasive species

Invasive orange hawkweed

Orange hawkweed_Sunlight Condos_MA_2012_07_24 (11)

This European perennial invades pastures and lawns, displacing native plants and forming monocultures. The vibrant orange-red flowers are clustered at the top of the leafless stem and you’ll see them in late spring to mid-summer. Orange hawkweed (Hieracium aurantiacum) grows about 12′ tall and produce dandelion-like fuzzy seedheads. The plant spreads vegetatively through stolons.  All parts of the plant also produce a milky juice.  The best way to get rid of it is to dig it out by hand, making sure you get all the roots.

Some native plant alternatives are:

  1. Oregon sunshine
  2. Douglas aster
  3. Orange sneezeweed
  4. California poppy
  5. Arrowleaf balsamroot

Projects

Oregon Invasive Species Awareness Week

Orange hawkweed (Hieracium aurantiacum) This is Oregon Invasive Species Awareness Week and orange hawkweed is another invasive weed we’re asking you to look out for on your property.               […]

Organizations