[Bluegrasses: The Genus Poa in the Columbia River Gorge of Oregon and Washington]

Multnomah Bluegrass

Poa xmultnomae

Synonyms: Poa gracillima, Poa gracillima var. multnomae

Multnomah Bluegrass: Poa xmultnomae (Synonyms: Poa gracillima, Poa gracillima var. multnomae)

What may be multnomah bluegrass as seen on north-facing basalt cliffs west of Starvation Creek, Columbia River Gorge. The spreading inflorescence or panicle seems to be a bit more complex (more branched and more spikelets) than the similar leiberg's bluegrass (Poa leibergii) which is also found in the vicinity.

Spikelets of Multnomah Bluegrass: Poa xmultnomae (Synonyms: Poa gracillima, Poa gracillima var. multnomae) - Inflorescence of Multnomah Bluegrass: Poa xmultnomae (Synonyms: Poa gracillima, Poa gracillima var. multnomae)

Inflorescence of Multnomah Bluegrass: Poa xmultnomae (Synonyms: Poa gracillima, Poa gracillima var. multnomae) - Spikelets of Multnomah Bluegrass: Poa xmultnomae (Synonyms: Poa gracillima, Poa gracillima var. multnomae) - Spikelets of Multnomah Bluegrass: Poa xmultnomae (Synonyms: Poa gracillima, Poa gracillima var. multnomae)

What may be multnomah bluegrass as seen on north-facing basalt cliffs west of Starvation Creek, Columbia River Gorge. The spreading inflorescence or panicle seems to be a bit more complex (more branched and more spikelets) than the similar leiberg's bluegrass (Poa leibergii) which is also found in the vicinity.
Paul Slichter