Ceanothus arcuatus McMinn
Annotated by Callahan, F., 2013.

Oregon: Josephine County: west of O'Brien, west of Lone Mtn. Rd., south of Little Rock Creek growing on flats- Robert Powell property.
42.0683° N, 123.7041° W,
Uncertainty: 9656 meters.
Plants common.

Frank Callahan CA-2-LMR-1, Jul 2013
OSC, Catalog: OSC244863

Ceanothus arcuatus McMinn
Annotated by collector, 25 Jul 2013.

Oregon: Josephine County: west of O'Brien, west of Lone Mtn. Rd., south of Little Rock Creek, on flats - Robert Powell property.
flats; soils derived from UMF substrates; assoc. Ceanothus cuneatus and C. pumilus common on site Phenology: vegetative.

Frank T. Callahan CA-2-LMR-13, Jul 25, 2013
SOC, Accession: 23914

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: Store Gulch-Illinois River, 9 1/2 miles east of Selma on Selma-Illinois River Rd (#3504).
42.2934° N, 123.7482° W,
Uncertainty: 805 meters.
Prostrate shrub with fragrant white flowers.

V.L. Crosby 1140, Apr 12, 1977
OSC, Catalog: ORE98585

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: Store Gulch-Illinois River, 9 1/2 miles east of Selma on Selma-Illinois River Rd. (#3504).
42.2934° N, 123.7482° W,
Uncertainty: 805 meters.
Prostrate shrub with fragrant white flowers.

V.L. Crosby 1140, Apr 12, 1977
OSC, Catalog: OSC149915

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: Eight Dollar mountain rd.
[fls purple].

Maxcine Williams s.n., Apr 1973
OSC, Catalog: OSC143820

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: Peavine Mt. road. 4.0 mi above junct. with Galice Ck. rd W of Galice.
C. pumilus abundant here, but no C. cuneatus evident; this one plant undoubtedly a hybrid-- its branches stiff, low, spreading to prostrate but not hugging the ground.

K.L. Chambers 3031, May 1971
OSC, Catalog: OSC135763

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: Siskiyou Smokejumper Camp, Illinois River valley, ca. 5 mi. S of Cave Junction.
42.1035° N, 123.6906° W,
Uncertainty: 805 meters.
Hybrids wi white or pale-blue fls & prostrate or decumbent growth See also 3022, 143344OSU & 3022B, 143972 OSU which are not in th.

K.L. Chambers 3022A, May 9, 1971
OSC, Catalog: OSC143343

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: Siskiyou Smokejumper Camp, Illinois River valley, ca. 5 mi. S of Cave Junction.
42.1035° N, 123.6906° W,
Uncertainty: 805 meters.
Forming occasional hybrids as noted by paler flowers combined with decumbent or only semi-erect habit (C. cuneatus has white flowers erect stems).

K.L. Chambers 3022, May 9, 1971
OSC, Catalog: OSC143344

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: Siskiyou Smokejumper Camp, Illinois River valley, ca. 5 mi. s. of Cave Junction.
42.1035° N, 123.6906° W,
Uncertainty: 805 meters.
With both parent species, the hybrids noted by white or pale-blue flowerss combined with prostrate or decumbent growth habit.

K.L. Chambers 3022B, May 9, 1971
OSC, Catalog: OSC143972

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: Illinois River Valley W of Selma 1/2 mi up Oregonite trail from Store Gulch. Elev. 520.00 m.
42.3026° N, 123.7553° W,
Uncertainty: 201 meters.

C. David White 585, May 1970
OSC, Catalog: ORE55041

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: 7 miles south of Kerby.
42.0925° N, 123.6506° W,
Uncertainty: 9656 meters.
See McMinn, H.E. Ceanothus 2: 264 (1942) cited as "minor var. 2" of C. pumilus "...this is prob. a hybrid btwn C. pumilus & C. cune.

H.M. Gilkey s.n., Apr 1930
OSC, Catalog: OSC36455

Ceanothus arcuatus McMinn
Annotated by Halse, R., 8 Jul 2010.

Oregon: Josephine County: "desert" area 7 mi S of Kerby.
42.0925° N, 123.6506° W,
Uncertainty: 9656 meters.
See McMinn, H.E. Ceanothus 2: 264 (1942) cited as "minor var. 1...lvs more obovate, yellowish & apical teeth small or absent" of C.

H.M. Gilkey s.n., Apr 1930
OSC, Catalog: OSC36457