Brookfoams: The Genus Boykinia West of the Cascade Mountains of Oregon and Washington

Coast Boykinia, Coastal Brookfoam, Slender Boykinia

Boykinia occidentalis

Synonyms: Boykinia cincinnata, Boykinia elata, Boykinia vancouverensis, Therofon cincinnatum

Flowers of Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata)

Images of coast boykinia as seen in the webmaster's garden in Gresham, OR.........June 17, 2016.

Characteristics:

Coast boykinia is a perennial with slender, leafy stems from 15-60 cm high arising from several basal leaves. The stem may be sparsely glandular-hairy, sometimes red- or brown- woolly below. The leaves are orbicular, sharply cleft 5-7 times, the lobes toothed and with sharp points.. The leaves are thin and have smooth surfaces except for the veins below. The leaves are 4-8 cm wide. The basal and lower leaves of the stem have long, slender petioles which are glandular-hairy, while the upper leaves become sessile. The stem leaves are alternate. The inflorescence is an open, loose panicle. The white flowers have 5 petals which are 5-6 mm long and are broadly spatulate or obovate in shape. The calyx is is bell-shaped and about 4 mm long.


Habitat:

Coast boykinia may be found in moist shady woods and along streams.


Range:

Coast boykinia may be found between the coast and the western slopes of the Cascades from British Columbia south to southern Oregon, and south along the coast and in the Sierra Nevada of California.


Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata) - Flowers of Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata) - Leaf of Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata)

Sepals of Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata)

Images of coast boykinia as seen in the webmaster's garden in Gresham, OR.........June 17, 2016.

Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata) - Inflorescence of Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata) - Inflorescence of Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata)

What might be coast boykinia as seen near Ahlstroms Prairie, Olympic National Park..........July 26, 2014.

Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata) - Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata)

Coast boykinia as seen along the Cape Arago Trail at Shore Acres State Park.........April 19, 2016.

Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata)

Basal leaf of coast boykinia as seen along the Neahkanie Mountain South Trail in northwestern Tillamook County, Oregon........April 6, 2016.

Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata) - Coast Boykinia, Coastal Brookfoam, Slender Boykinia: Boykinia occidentalis (Synonym: Boykinia elata)

Coast boykinia from Saddle Mt. State Park, Coast Range, OR.

Paul Slichter