A small species of pearlwort, doubtfully referred here, occurs rarely along rivulets in Paradise Park.
=Cerastium arvense= Linnaeus.
Goat Mountains, Allen, No. 237.
=Arenaria capillaris= Poiret.
Common on the rocks at 5,000 to 7,000 feet elevation. The form with curved leaves, variety _nardifolia_ Regel, is more frequent than the type.
=Arenaria verna= Linnaeus.
Rather rare in the pumice on the east side of the mountain.
=Arenaria macrophylla= Hooker.
In dry woods at low alt.i.tudes.
=PORTULACACEAE.= (Purslane Family.)
=Spraguea multiceps= Howell.
A handsome plant, with entire spatulate leaves and dense heads of pink or purple flowers. Common in the pumice fields.
=Claytonia sibirica= Linnaeus.
Collected by Flett somewhere near the base of the mountain. The commonest lowland "spring beauty."
=Claytonia asarifolia= Bongard.
A plant with fleshy entire leaves and small racemes of white flowers.
Occasional along the rivulets at 4,000 to 5,000 feet elevation.
=Claytonia parvifolia= Mocino.
On the rocks at 3,000 to 4,000 feet alt.i.tude.
=Claytonia lanceolata= Pursh.
Common in the gra.s.sy meadows. The tuberous root is edible.
=Lewisia columbiana= (Howell) Robinson.
Goat Mountains, Allen. Leaves fleshy, flowers rose-purple, showy.
=POLYGONACEAE.= (Buckwheat Family.)
=Oxyria digyna= (Linnaeus) Hill.
A small plant with reniform entire leaves, and flowers and fruit like those of the common docks. Not rare in rock crevices at 5,000 to 6,000 feet elevation.
=Polygonum minimum= Watson.
Common at 5,000 to 6,000 feet alt.i.tude.
=Polygonum douglasii= Greene.
On a gravelly slope near the foot of Cowlitz Glacier.
=Polygonum newberryi= Small.
Common in the pumice fields, where it is a characteristic plant.
=Polygonum bistortoides= Pursh.
Very plentiful on the gra.s.sy slopes, where it is conspicuous by its dense white-flowered spikes an inch long, borne singly on slender stems a foot or two high.
=Eriogonum compositum= Douglas.
A form of this variable species occurs on the talus at the foot of the cliffs on the north side of Cowlitz Glacier.
=Eriogonum pyrolaefolium coryphaeum= Torrey & Gray.
Plentiful in the pumice fields.
=BETULACEAE.= (Birch Family.)
=Alnus sinuata= (Regel) Rydberg.
Sitka alder. A small alder, seldom over ten or twelve feet high.
Common along the streams at low alt.i.tude.
=SALICACEAE.= (Willow Family.)
=Salix scouleriana= Barratt.
The common upland willow; not rare up to 3,500 feet elevation.
=Salix sitchensis= Sanson.
The "silky willow" is plentiful along the Nisqually at Longmire Springs.
=Salix barclayi= Anderson.
=Salix commutata= Bebb.