Howard Earnest McMinn

Ceanothus griseus is a species of flowering shrub known by the common names Carmel ceanothus and Carmel creeper. 'Carmel' refers to the Carmel-by-the-Sea region in California.

Arctostaphylos viridissima is a species of manzanita known by the common names whitehair manzanita and McMinn's manzanita. It is endemic to Santa Cruz Island, one of the Channel Islands of California.

Ceanothus ferrisiae (sometimes spelled ferrisae) is a rare species of shrub in the family Rhamnaceae. Its common name is coyote ceanothus.

Ceanothus otayensis, the Otay Mountain buckbrush or Otay Mountain lilac, is a plant species known only from the Otay and San Miguel Mountains of San Diego County, California, and in nearby Baja California, Mexico. It occurs on dry slopes and brushlands at elevations of 600–1100 m. Ceanothus otayensis is a shrub up to 120 cm tall, erect, not rooting at the nodes. Leaves are opposite, evergreen, broadly ovate, up to 15 mm long. Flowers are white to pale blue, borne in a spike of umbels. Fruits are spherical, about 5 mm across.

Ceanothus masonii is a species of shrub in the buckthorn family, Rhamnaceae, known by the common name Mason's ceanothus. It is endemic to Marin County, California, where it is known only from an area near Bolinas on the Point Reyes National Seashore. It grows in the coastal chaparral on the windblown bluffs..

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Berberis piperiana is a shrub native to the mountains of northern California and southwestern Oregon. It is found in open and wooded slopes at elevations of 900–1,700 m (3,000–5,600 ft). Berberis piperiana can attain a height of up to 80 cm (31 in). Leaves are evergreen, pinnately compound with 5–9 leaflets. Berries are dark blue and waxy. The species is related to the more common Oregon-grape, B. aquifolium, but distinguished by its shorter stature and broader leaflets. The compound leaves place this species in the group sometimes segregated as the genus Mahonia.

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