[The Genus Phlox on Mt. Adams]

Spreading Phlox

Phlox diffusa

Synonyms: Phlox azurea, Phlox diffusa ssp. diffusa, Phlox diffusa ssp. longistylis, Phlox diffusa var. longistylis

Flowers of Spreading Phlox: Phlox diffusa (Synonyms: Phlox azurea, Phlox diffusa ssp. diffusa, Phlox diffusa ssp. longistylis, Phlox diffusa var. longistylis)

The photo above shows a close-up of the spreading corolla lobes of spreading phlox. Photographed in the summit crater of Potato Hill, on the north side of Mt. Adams...............June 21, 2005.

Close-up sideview of the flower of Spreading Phlox: Phlox diffusa (Synonyms: Phlox azurea, Phlox diffusa ssp. diffusa, Phlox diffusa ssp. longistylis, Phlox diffusa var. longistylis)

The photo above shows a close-up side-view of the calyx and tubular corolla of spreading phlox. Note the tufts of hairs found between the calyx lobes. Photographed in the summit crater of Potato Hill, on the north side of Mt. Adams...............June 21, 2005.

Spreading Phlox: Phlox diffusa (Synonyms: Phlox azurea, Phlox diffusa ssp. diffusa, Phlox diffusa ssp. longistylis, Phlox diffusa var. longistylis)

Spreading phlox blooming along the Killen Creek Trail #113 about one hundred meters downhill from the junction with the Pacific Crest Trail #2000, Mt. Adams Wilderness..............August 29, 2012.

Flower of Spreading Phlox: Phlox diffusa (Synonyms: Phlox azurea, Phlox diffusa ssp. diffusa, Phlox diffusa ssp. longistylis, Phlox diffusa var. longistylis)

The photo above shows a flower of spreading phlox with 4 instead of the usual 5 corolla lobes. Photographed along the Highline Trail, above 6000' on the northern side of Mt. Adams................July 24, 2005.

Spreading Phlox: Phlox diffusa (Synonyms: Phlox azurea, Phlox diffusa ssp. diffusa, Phlox diffusa ssp. longistylis, Phlox diffusa var. longistylis)

The photo above shows spreading phlox as seen along the Round the Mountain Trail to the west of Salt Creek on the south side of Mt. Adams............August 31, 1996.
Locations on Mt. Adams where this species has been seen:

1. Numerous spots along the Round the Mountain Trail on the south side of Mt. Adams from Horseshoe Meadows to Bird Creek Meadows. It is also found along Rd 23 along the west side of the mountain on steep slopes at the head of the Lewis River drainage.


Spreading Phlox: Phlox diffusa (Synonyms: Phlox azurea, Phlox diffusa ssp. diffusa, Phlox diffusa ssp. longistylis, Phlox diffusa var. longistylis)

The photo above shows spreading phlox as seen along the Round the Mountain Trail to the west of Salt Creek on the south side of Mt. Adams............August 31, 1996.

Paul Slichter