Quercus tomentella, the island oak, island live oak, or Channel Island oak, is an oak in the section Protobalanus. It is native to six islands: five of the Channel Islands of California and Guadalupe Island, part of Baja California.
Cylindropuntia is a genus of cacti, containing species commonly known as chollas, native to northern Mexico and the Southwestern United States. They are known for their barbed spines that tenaciously attach to skin, fur, and clothing. Stands of cholla are called cholla gardens. Individuals within these colonies often exhibit the same DNA, as they were formerly tubercles of an original plant.
Physocarpus, commonly called ninebark, is a genus of flowering plants in the family Rosaceae, native to North America and northeastern Asia.
Phyllospadix scouleri, or Scouler's surfgrass, is a flowering marine plant in the family Zosteraceae. It is native to the coastline of western North America from the Alaskan panhandle to Baja California.
Halodule is a genus of plants in the family Cymodoceaceae described as a genus in 1841. It is widespread on tropical and semi-tropical ocean shores of all continents except Europe and Antarctica.
Echinocereus triglochidiatus is a species of hedgehog cactus known by several common names, including kingcup cactus, claret cup cactus, red-flowered hedgehog cactus and Mojave mound cactus. This cactus is native to the southwestern United States and northern Mexico, where it is a resident of varied habitats from low desert to rocky slopes, scrub, and mountain woodland. E. triglochidiatus is the official state cactus of Colorado.
Gladiolus italicus is a species of gladiolus known by the common names Italian gladiolus, field gladiolus, and common sword-lily. It is native to much of Eurasia and North Africa, but it is well known on other continents where it is a common weed, particularly of cultivated fields and waste places. This perennial flower grows an erect stem approaching a meter in maximum height with a few long leaves around its base. Toward the top half of the generally unbranching stem is a spike inflorescence on which flowers appear at intervals. Each plant has up to 15 or 16 flowers. The flower is bright pink to magenta and several centimeters long with its stamens and style protruding from the throat. The fruit is a capsule about a centimeter long containing many seeds.
Hazardia cana is a rare North American species of shrubs in the family Asteraceae known by the common names Guadalupe hazardia, San Clemente Island hazardia, or simply island hazardia. It is native to San Clemente Island, one of the Channel Islands of California, and to Guadalupe Island.
Microgramma is a genus of ferns in the family Polypodiaceae, subfamily Polypodioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). They are commonly known as vine ferns or snakeferns.
Allium monticola is an uncommon species of wild onion known by the common name San Bernardino Mountain onion. It is endemic to southern California, where it is found in the Transverse Ranges and the northernmost section of the Peninsular Ranges. It has been reported from San Bernardino, Los Angeles, Orange, Ventura and Santa Barbara Counties.
Phyllospadix, commonly known as surfgrass, is a genus of seagrass, a flowering plant in the family Zosteraceae, described as a genus in 1840. Phyllospadix grows in marine waters along the coasts of the temperate North Pacific.
Ranunculus occidentalis, the western buttercup, is a species of buttercup found in the western regions of North America. Its distribution extends from Alaska through British Columbia and Alberta to central California. The flower can be seen in open meadows, forests, and other generally flat areas up to an elevation of 2,200 metres (7,200 ft).
Pilostyles thurberi is a species of endoparasitic flowering plant known by the common names Thurber's stemsucker and Thurber's pilostyles. It is native to the southwestern United States and northern Mexico, where it grows in desert and woodland. In the United States, P. thurberi has been recorded from the states of Arizona, California, New Mexico, Nevada, Texas.
Pentagramma triangularis, commonly known as the gold fern or the goldback fern, is a species of fern in the family Pteridaceae, native to Western North America, with highest abundance in the state of California. Its common name "goldback" refers to the light yellow color of the fern's protective coating which inhibits moisture loss. The gold texture appears as a dry powder that is excreted on the underside of the fern. The Latin specific epithet Pentagramma derives from "five lines" or "stripes" while triangularis derives from "three sided", describing the shape of the fern's broad triangular fronds.
Halodule wrightii is an aquatic plant in the Cymodoceaceae family. It is referred to by the common names shoal grass or shoalweed, and is a plant species native to seacoasts of some of the warmer oceans of the world.
Stevia plummerae, or Plummer's candyleaf, is a plant species known from Arizona, New Mexico, Chihuahua, Sonora and Durango It is an herb up to 80 cm tall, with white, pink or red flowers. It tends to grow in pine forests at an elevation of 2,000–3,000 m (6,600–9,800 ft).
Phyllospadix serrulatus is a species of aquatic plant in the Zosteraceae family. It is referred to by the common name toothed surfgrass, and is found along the shorelines of British Columbia and southern Alaska. It is also found in Oregon. It grows in salt marshes in the intertidal zone.
Phyllospadix iwatensis is a plant species found along the seacoasts of Japan, Korea, China, and the Russian Far East. It was first discovered in 1929 near on the Miyako Peninsula in Iwate Prefecture in Japan, in northeastern Honshu. It occurs in the intertidal zone along the shore.
Tagetes lemmonii, or Lemmon's marigold, is a North American species of shrubby marigold, in the family Asteraceae. Other English names for this plant include Copper Canyon daisy, mountain marigold, and Mexican marigold.
Gonocarpus chinensis is an accepted Australian shrub in the family Haloragaceae (watermilfoil) native to eastern Australia, South China, Caroline islands and North Australia. It was introduced to the Hawaiian islands, United States and California, United States. G. chinensis is considered not to be a economically impotent genus but can be used for medicine and gardening as ornamental plants. This species lives in wet tropical regions, grasslands, riverbanks and in waste lands in elevations at 100 to 800 meters but at 1800 meters in Southwest China.
