Plants of the San Marcos Foothills Preserve
Polygonum aviculare subsp. depressum (Common Knotweed)
Uncommon, native, perennial shrub found in coastal sage-scrub plant community, but also on the edges of oak woodland. Flowers are yellow (aging red). Blooms in spring. Previous scientific name: Lotus scoparius.
Polygonum aviculare subsp. depressum (Common Knotweed). Pictured in late spring.
Polygonum aviculare subsp. depressum (Common Knotweed). Pictured in late spring.
Polygonum aviculare subsp. depressum (Common Knotweed). Pictured in late spring.