[The Genus Microseris in the Cascade Mountains of Oregon and Washington ]

Bog Microseris, Northern Microseris, Apargidium

Microseris borealis

Synonym: Apargidium boreale

Flower head of Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale) - Flower head of Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale)

The photo at right shows a view down onto the flower head of northern microseris as seen in the moist meadows of Bonney Meadows, Mt. Hood National Forest.........September 20, 2018. The photo at right shows a close-up view look down on the flower head of northern microseris as seen as seen at about 4500' on the northwestern slopes of Mt. Adams..........May 23, 2005. All photos on this page were taken at the same location and at the same date. The plant shown here should now be part of the collection at the herbarium at the University of Washington.

Habitat of  Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale) - Flower head of Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale)

Involucral bracts of Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale) - Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale)

Northern microseris as seen on Mt. Adams........August 6, 2017.

Involucral bracts of Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale)

The photo above shows a close-up of the involucral bracts of northern microseris. Note how the outer row of bracts is much shorter than the inner, darker row and note also the dark hairs at the tips of the inner row of bracts.

Involucral bracts of Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale)

The photo above shows a close-up side view of the flower head of northern microseris and its involucral bracts as seen near 4500' at Takh Takh Meadows on the northwestern slopes of Mt. Adams........July 12, 2005.

Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale)

The photo above shows the roots, cluster of basal leaves and lower half of the leafless scape of northern microseris. The photo shows the typical habitat in the background, which is a most meadow inundated by up to a foot of water during the early season, through which the flowers will first bloom.


Basal leaf of Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale)

The photo above shows a close-up of a basal leaf of northern microseris.


Cross section of stem of Bog Microseris, Northern Microseris, Apargidium: Microseris borealis (Synonym: Apargidium boreale)

The photo above shows the hollow stem of northern microseris and its milky sap.


Paul Slichter