White-flowered Hawkweed, White Hawkweed
Hieracium albiflorum
Synonyms: Chlorocrepis albiflora, Hieracium helleri, Hieracium occidentale, Hieracium siskiyouense
The photo above shows the inflorescence of
white-flowered hawkweed as photographed at about 4100' atop the ridge that divides
the Cougar and Dairy Creek drainages at the southeast corner of Mt. Adams................July
10, 2005.
The photo above shows a close-up of the flower
head of white-flowered hawkweed as photographed at about 4100' atop the ridge
that divides the Cougar and Dairy Creek drainages at the southeast corner of
Mt. Adams................July 10, 2005. This is the only white-flowered hawkweed
species in the Pacific Northwest. Note the thin, black bristles on the involucral
bracts.
The photo above shows the white ray flowers
of white-flowered hawkweed as photographed at about 4100' atop the ridge that
divides the Cougar and Dairy Creek drainages at the southeast corner of Mt.
Adams................July 10, 2005. Note the squared-off, fringed tips
to the rays.
Paul Slichter