Question: Are Ceanothus and Eulophia both types of plant?

Context articles: Ceanothus papillosus
Eulophia
Ceanothus sanguineus
Oeceoclades atrovirens
Ceanothus verrucosus
Ceanothus
Ceanothus otayensis
Ceanothus velutinus
Ceanothus impressus
Ceanothus leucodermis

Ceanothus papillosus (wartleaf ceanothus) is a species of plant in the genus "Ceanothus".
 It is endemic to California, where it grows in open habitat on the slopes of the coastal mountain ranges, such as woodland and chaparral.
Eulophia is a genus of approximately 165 species of orchids.
 It was first described by John Lindley in 1821.
 The name "Eulophia" was derived from the Greek words "eu" (well) and "lophos" (plume), referring to the crested ridges of the labellum (lip) in most species.
 This genus is abbreviated Eupha in horticultural trade.
Ceanothus sanguineus is a species of shrub in the buckthorn family Rhamnaceae known by the common name redstem ceanothus.
 It is native to western North America from British Columbia to Montana to far northern California; it is also known from Michigan.
 It grows in temperate coniferous forest habitat in forest openings amidst the conifers.
 This is an erect shrub approaching 3 meters in maximum height.
 Its stem is red to purple in color, its woody parts green and hairless when new.
 The deciduous leaves are alternately arranged and up to about 10 centimeters long.
 They are thin, light green, oval, and generally edged with glandular teeth.
 The undersides are sometimes hairy.
 The inflorescence is a cluster of white flowers up to about 12 centimeters long.
 The fruit is a three-lobed smooth capsule about 4 millimeters long.
 This shrub is an important food plant for wild ungulates such as the Rocky Mountain Elk, it is browsed eagerly by many types of livestock, and the seed is consumed by many types of animals.
Oeceoclades atrovirens is a terrestrial orchid species in the genus "Oeceoclades".
 It was first described by the English botanist John Lindley in 1833 as "Eulophia atrovirens" and later transferred to the genus "Oeceoclades" in 1976 by Leslie Andrew Garay and Peter Taylor.
 Lindley based his initial description of the species on a color drawing that Nathaniel Wallich completed in 1828 for the East India Company.
 No specimens of this plant are known, so this species is only represented by the single illustration.
 Wallich indicated on the drawing that the species was seen in India, but he did not provide a specific location.
 The World Checklist of Selected Plant Families lists the distribution of "O. atrovirens", with some uncertainty, as possibly being in India or Mauritius.
Ceanothus verrucosus is a species of shrub in the buckthorn family Rhamnaceae known by the common names wart-stem ceanothus, barranca brush, and white coast ceanothus.
 It is native to Baja California and San Diego County, where it grows in coastal chaparral and scrub.
 Most of the valuable coastal land that hosts this plant in the San Diego area has been claimed for development, but several populations still remain scattered around the region, such as one protected at Torrey Pines.
Ceanothus L. is a genus of about 50–60 species of nitrogen-fixing shrubs or small trees in the family Rhamnaceae.
 Common names for members of this genus are California lilac, wild lilac, and soap bush. "
"Ceonothus"" comes from a Greek word meaning "spiny plant", Ancient Greek: κεάνωθος ("keanōthos"), which was applied by Theophrastus (371–287 BC) to an Old World plant believed to be "Cirsium arvense".
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 velutinus, with the common names snowbrush ceanothus, red root, and tobacco brush, is a species of shrub in the family Rhamnaceae.
 It is native to western North America from British Columbia to California to Colorado, where it grows in several habitat types including coniferous forest, chaparral, and various types of woodland.
Ceanothus impressus, with the common name Santa Barbara ceanothus, is a species of flowering shrub.
 This "Ceanothus" is endemic to the Central Coast of California, where it can be found on coastal slopes and mesas.
 Other common names are blueblossom ('blueblos') and California lilac, although the plant is not a lilac ("Syringa").
Ceanothus leucodermis, with the common name chaparral whitethorn or chaparral white thorn, is a species of shrub in the buckthorn family Rhamnaceae.
 This "Ceanothus" is an importance browse for several types of ungulate, such as the mule deer and bighorn sheep, who prefer the new growth and shoots to the older, spiny parts.