Palo Corona Regional Park

Diffuse Spineflower


Scientific name:

Chorizanthe diffusa


Family: Knotweed or Polygonaceae


Blooms: Apr–July


Plant Height: < 10 cm


Habitat: Sandy & gravelly places


About: This plant is prostrate to spreading and appears greenish/white. It is relatively common and may be found with Monterey Spine flower. It can be distinguished by its yellow-throated white flowers, and generally pure white involucral membranes (occasionally pink or purple). These are not continuous (i.e. spanning the entire space between the ribs), but ovate to round at their base, abruptly narrowing to a long slender tip. The involucral teeth have hooked awns.

https://montereywildflowers.com/polygonaceae-spineflower/