[Hawkweeds: The Genus Hieracium in Mt. Adams Country]

White Hawkweed, White-flowered Hawkweed

Hieracium albiflorum

Synonyms: Chlorocrepis albiflora, Hieracium helleri, Hieracium occidentale, Hieracium siskiyouense

Inflorescence of White Hawkweed, White-flowered 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.

Flower head of White Hawkweed, White-flowered Hawkweed: Hieracium albiflorum (Synonyms: Chlorocrepis albiflora, Hieracium helleri, Hieracium occidentale, Hieracium siskiyouense)

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.

Flower head of White Hawkweed, White-flowered Hawkweed: Hieracium albiflorum (Synonyms: Chlorocrepis albiflora, Hieracium helleri, Hieracium occidentale, Hieracium siskiyouense)

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