Volume XVI - 1950
Additions To The Flora Of Crater Lake National Park
By William H. Baker, Ranger-Naturalist
During the seasons of 1949 and 1950, while doing extensive work or
the plants of Crater Lake National Park, Klamath County, Oregon, a
considerable number were collected which proved to be new records Other
collections were made which helped to substantiate reports of plants
previously listed as growing here but for which no study material was
available. Several species appeared to be adventive since the last
publication on the flora.
The plants discussed in this report are either not mentioned in
"Plants of Crater Lake National Park" by E. I. Applegate (1939) or have
proved to be of sufficient interest to warrant additional discussion.
All were the writer's own collections except as indicated in the text.
Specimens are deposited in the Herbarium at Headquarters, Crater Lake
Bromus tectorum L. Downy Brome - Grass.
Dry ground, near
the south entrance. No. 6896. Very abundant throughout eastern Oregon.
Introduced from Europe.
Glyceria pauciflora Presl. Few-Flowered Manna-Grass.
Along Red Blanket Creek in the southwest section of the park, at the
boundary marker below Red Blanket Creek Spring. No. 6422. This plant is
widely distributed in swampy ground from California to Alaska, and
eastward to the Rocky Mountains.
Deschampsia danthonioides (Trin.) Munro.
Hair-Grass. Moist ground, lower Annie Creek Canyon near the south
entrance to the park. No. 6914. Grows throughout western region, at
lower elevations, from Alaska to Mexico.
Carex campylocarpa Holm. Crater Lake Sedge.
just below the park headquarters. No. 6441. Crater Lake is the type
locality for this interesting species. Some authors include it with
C. gymnoclada Holm, the Sierra Alpine Sedge. It appears to be
sufficiently different, however, to maintain it as a separate entity.
The species is commonly found on alpine stream banks in the Cascade and
Wallowa Mountains of Oregon and in the mountains of Washington.
Carex epapillosa Mack. Smooth-fruited Sedge.
small stream on the east slope below the crater rim, south of Kerr
Notch. No. 6270. This plant is recorded from mountain meadows in the
high Cascades of Oregon and Washington, the Rocky Mountains, and the
Eriogonum compositum Dougl. Heart-Leaved Eriogonum.
Collected by Elmer I. Applegate on Crescent Ridge just north of National
Creek. No. 11338. A common species of the arid regions of eastern
Oregon. It has been found in the Calapooya Mountains a little farther to
the northwest by the writer. The Crescent Ridge collection represents an
interesting occurrence of the plant on the west slope of the Cascades.
In the park it has been confused with E. elatum Dougl., Tall
Eriogonum, which is found around Klamath Falls in the park region.
Polygonum cascadense W. H. Baker. Cascade Knotweed.
wall of Red Blanket Canyon, southwest corner of the park. No. 6995. The
type was collected on the south slope of Fairview Mountain in the
Calapooya Range, Oregon. The known range is from the McKenzie Pass to
Crater Lake National Park in the Cascades and in the Calapooya
Mountains. Previous collections of this plant in the park have been
confused with other species of Polygonum.
Trifolium hybridum L. Alsike Clover.
Along the highway at
Polebridge Creek. No. 7185. Introduced; a common cultivated plant.
Lathyrus nuttalii S. Wats. Nuttall's Pea.
Open woods at
Copeland Creek Crossing. No. 7206. Occurs usually west of the Cascades
in Oregon but it is recorded locally in Klamath County. Found from
Vancouver Island and western Washington south to northern California. It
differs from L. nevadensis Wats., Nevada Pea, in having thin
leaves with inconspicuous veining and pubescent pods.
Lathyrus bijugatus White var. Sandbergii White.
Open woods and hillsides in the vicinity of Copeland
Creek Meadows. No. 7205. A plant of the open woods growing along the
eastern base of the Cascades from Klamath County northward to Washington
and Idaho. It is distinguished from other species of Lathyrus in
the park by its very narrow linear or linear-lanceolate leaves.
Lomatium nudicaule (Pursh) C. & R. Naked Desert
North wall of Red Blanket Canyon, southwest corner of the
park. No. 7006. It is easily recognized by the naked stem and because
the peduncles are strongly dilated at the summit. Recorded as growing in
dry sterile ground from Oregon, Washington, and California, eastward to
Phyllodoce empetriformis (Smith) G. Don. Red Mountain
Woods near the rim on the east slope just south of Kerr
Notch. No. 6276. Along a stream below the crater rim south of Kerr
Notch. No. 7146. Wooded ridge south of Kerr Notch. No. 7137. Applegate
lists this in his publication but states that he did not collect it
within the, park. It is recorded by Wynd, No. 2390, from Llao Rock. The
plan appears to be fairly common on the east slope below the crater
Collomia heterophylla Hook. Varied-leaved Collomia.
wall of Red Blanket Canyon, southwest corner of the park. No. 6992.
Widely distributed in open woods and thickets from Vancouver Island to
Rudbeckia occidentalis Nutt. Western Cone-Flower.
Wet marshy ground at Copeland Creek Crossing. No. 6327.
The ray flowers are absent in this species. It presents a rather unusual
appearance and is sometimes known as niggerhead. The plant has been
confused in the park with a related species, R. californica Gray,
California Cone-Flower, which has rays present and grows commonly
farther south. Abundant is the Siskiyou and Blue Mountains, but is
present locally in the southern Cascades of Oregon as well.
Agoseris heterophylla (Nutt.) Greene. Annual Agoseris.
Lower Annie Creek Canyon near the south entrance to the park. No. 6915.
It is widely distributed on dry open ground from British Columbia to
California and east to Utah.
Eupatorium occidentale Hook. Western Boneset.
is not recorded by Applegate, "Plants of Crater Lake National Park,"
although he had apparently collected it in the park, No. 10044 from
Wineglass and No. 9215 from the lava flow on the west side of Wizard
Island. It was collected by the writer on Wizard Island among the lava
rocks on the south shore near the boat landings: No. 6358. Wizard Island
along the west shore at the base of large lava boulders on the west
flow: No. 6364. It is also present on the Phantom Ship and on the Lake
and Garfield Peak Trails.