[Kinnikinnicks and Manzanitas: The Genus Arctostaphylos in the Columbia River Gorge of Oregon and Washington]

Kinnikinnick, Pinemat Manzanita, Snowmat Manzanita

Arctostaphylos nevadensis

Synonyms: Arctostaphylos nevadensis ssp. nevadensis, Arctostaphylos pungens ssp. nevadensis

Pinemat Manzanita, Kinnikinnick, Snowmat Manzanita: Arctostaphylos nevadensis (Synonyms: Arctostaphylos nevadensis ssp. nevadensis, Arctostaphylos pungens ssp. nevadensis)

The photo above shows a branch of pinemat manzanita and the leaves and flower clusters that it bears as seen on Crofton Butte on the southern slopes of Mt. Adams.........May 28, 2005. Note the attractive orangish-brown bark of this species.

Inflorescence and leaves of Kinnikinnick, Pinemat Manzanita , Kinnikinnick, Snowmat Manzanita: Arctostaphylos nevadensis (Synonym: Arctostaphylos nevadensis ssp. nevadensis)The photos of pinemat manzanita from this point on the page to the bottom were all taken at the rock quarry at the end of Rd K6900 at about 4100' on the southeastern slopes of Mt. Adams.........May 23, 2005. Note the leaf tips which often end in an abrupt, small, slender point.
Characteristics:

Pinemat manzanita is an attractive, prostrate subshrub with long, creeping stems which may often be partly buried. Much branched from the base, the stems often root at the nodes with contact with the ground. Plants form mats up to a meter or so wide and have short, stiff, smaller branches that ascend up to 30 cm high. The bark on older stems is glabrous, reddish brown and may exfoliate to some extent while that of the younger stems may bear some hairs. The leaves are short-petioled and oblanceolate to obovate in outline with wedge-shaped bases. The tips are rounded to acute with a short, sharp tip. The blades are 15-25 mm long and glabrous or with some hairs along the midrib.

The inflorescence consists of close racemes of 3-8 flowers on glabrous, short pedicels from 2-4 mm long. The corolla is white or pinkish. The fruit is a globose, light red to brownish berry from 5-8 mm wide.

The similar Arctostaphylos uva-ursi is found at lower altitudes in the mountains and has leaves with a rounded tips rather than a short, sharp tip.

Both plants are attractive, low maintenance ground covers for sunny areas which are easily obtainable from many commercial nurseries.


Habitat:

Pinemat manzanita may be found in clearings or open conifer woods, most typically at moderate to high elevations in the mountains.


Range:

Pinemat manzanita may be found from Washington south through the Cascade Mts. into Oregon whence it is found towards the coast in Curry County and further south through the Sierra Nevada of California. It is found east to the Blue Mts. of central and northeastern Oregon as well as southeastern Washington.

In the Columbia River Gorge, it may be found between the elevations of 1000'-4300' from near Bonneville Dam in the west eastward to near the Little White Salmon River.


Leaf of Kinnikinnick, Pinemat Manzanita , Kinnikinnick, Snowmat Manzanita: Arctostaphylos nevadensis (Synonym: Arctostaphylos nevadensis ssp. nevadensis)

The leaves of pinemat manzanita have acute to apiculate (seen here) tips.

Kinnikinnick, Pinemat Manzanita , Kinnikinnick, Snowmat Manzanita: Arctostaphylos nevadensis (Synonym: Arctostaphylos nevadensis ssp. nevadensis)

Pinemat manzanita in bloom at the summit of Angels Rest in the Columbia River Gorge........May 18, 2009. Note that the leave tips seen in this photo are acute.

Paul Slichter