Volunteer Tour & Botany Survey Success

More native grasses than predicted!

Thank you to everyone who participated in our first ‘Volunteer Tour & Botany Survey,’ held 10am to noon on Saturday, August 16, 2025. Volunteers also picked up trash from around the site — much appreciated.

Over forty adults (and a baby!) fanned out in three groups to tour and explore the site. Each were given a general botanical map and the list of plantings from the 2005-2006 superfund cleanup (see excerpt below).

Notable observations include:

  • Much of the grasses observed are native and likely grew and reseeded from the restoration planting in 2005-2006 which immediately followed the Superfund cleanup.
  • Also observed were naturally seeded patches of or ‘Purple Love Grass,’ an ornamental bunchgrass broadly endemic to North America and a lover of sandy soils.
  • Healthy groves of madrone, ponderosa, oak, willow and mahonia anchor the quarter-mile long bioswale.
  • Willamette Valley Gumweed (pictured below) was still blooming, and for many it was the first time they ‘pinched’ the flower head and realized why it is called ‘gumweed’ (sticky!).
  • Madrone, Ocean Spray, Hawthorne, and poison Oak were often found growing out from the fence.

We will be offering additional tours this Fall, and conducting botanical surveys on a regular basis. Stay tuned for announcements for those opportunities.

Willamette Valley Gumweed, photographed August 16th, 2025. A sunflower relative found along the west coast from Alaska to Oregon, its resinous flowers feed pollinators such as butterflies (like the great copper butterfly, Lycaena xanthoides), bees (including the native wetland-prairie long-horned bee, Melissodes pullatela), and flower flies (Family Syrphidae, also called ‘hoverflies’; myriad species). 
Thank you Rebecca Lexa for so many identifications and great insights into the plants found on the site. In particular, we all appreciated learning about Purple Love Grass, Eragrostis spectabilis. The name comes from the Greek words eros, meaning love, and agrostis, meaning grass. The flowers, which appear in August, have a reddish-purple hue.

Other images from the Tour & Survey