Bright pink Spineflowers growing at about 2100 feet elevation in mountainous grassland. Link to nearby
Pink Spineflower (Chorizanthe membranace) observation for comparison: https://www.inaturalist.org/observations/169884762
Douglas' Spineflower (Chorizanthe douglasii) Native, endemic, annual, hairy plant in the Buckwheat (Polygonaceae) family that grows 10–40 cm (up to 16 inches) tall in dry, sandy, gravelly soil. It is endemic to Monterey and San Luis Obispo Counties. The plant is common in Monterey and San Luis Obispo counties, but rare elsewhere. Leaves are mostly all basal, oblong to oblanceolate, and softly hairy. Inflorescence is dense clusters at terminal end of the (branching) stems. It has a triangular involucre with a continuous pink membrane. This pink membrane fills the space between the teeth like an umbrella. Awns are 0.5--1 mm, straight OR hooked (uncinate) at the terminal end. Peak bloom time: May-June.
Flora of Fort Ord: Monterey County, California, David Styer, 2019, p. 172.
Plants of Monterey County: an Illustrated Field Key, 2nd edition, Matthews and Mitchell, 2015, pp. 254-255.
Jepson eFlora https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=19337
Monterey County Wildflowers: a Field Guide, Yeager and Mitchell, 2016, p. 130.
Monterey County Wildflowers– a photographic guide https://montereywildflowers.com/polygonaceae-spineflower/
Link to nearby
Pink Spineflower (Chorizanthe membranace) observation for comparison: https://www.inaturalist.org/observations/169884762
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Jepson eFlora Key to Chorizanthe
https://ucjeps.berkeley.edu/eflora/eflora_keys.php?key=11204
Knotweed Family — Chorizanthe (Spineflower) "Flowers in this family do not have separate petals and sepals. For plants like this, the term “perianth” is used to describe the flower (i.e. the calyx and the corolla together) and “perianth parts” to describe the individual elements. In spineflowers, what you mostly see are the involucres and involucral membranes. The flowers themselves are 6-lobed, usually a similar color to the involucral membranes."
Monterey County Wildflowers– a photographic guide https://montereywildflowers.com/polygonaceae-spineflower/