Thomas Nuttall

Wisteria is a genus of flowering plants in the legume family, Fabaceae (Leguminosae). The genus includes four species of woody twining vines that are native to China, Japan, Korea, Vietnam, southern Canada, the Eastern United States, and north of Iran. They were later introduced to France, Germany and various other countries in Europe. Some species are popular ornamental plants. The genus name is also used as the English name, and may then be spelt 'wistaria'. In some countries in Western and Central Europe, Wisteria is also known by a variant spelling of the genus in which species were

Hickory is a common name for trees composing the genus Carya, which includes 19 species accepted by Plants of the World Online. Seven species are native to Southeast Asia in China, Indochina, and northeastern India (Assam), and twelve are native to North America. A number of hickory species are used for their edible nuts or for their wood.

Berberis aquifolium, the Oregon grape holly-leaved barberry, or Mahonia, is a North American species of flowering plant in the family Berberidaceae. It is an evergreen shrub growing up to 3 metres (10 ft) tall and 1.5 m (5 ft) wide. It has pinnate leaves consisting of spiny leaflets, exhibiting dense clusters of yellow flowers in early spring, followed by dark bluish-black berries. The berries are a part of the traditional diet of some indigenous peoples of the Pacific Northwest and the species serves as the state flower of Oregon.

Abies lasiocarpa, the subalpine fir or Rocky Mountain fir, is a western North American fir tree.

Mahonia is a formerly accepted genus of approximately 70 species of shrubs or, rarely, small trees with evergreen leaves in the family Berberidaceae, native to eastern Asia, the Himalaya, North America, and Central America. They are closely related to the genus Berberis and as of 2023 the majority of botanical sources list it as a synonym for Berberis. However, there is still disagreement among botanists, and as recently as 2017 papers have been published arguing for the validity of the genus. In addition, sources that are updated less frequently like the USDA Natural Resources Conservation

Maclura is a genus of flowering plants in the mulberry family, Moraceae. It includes the inedible Osage orange, which is used as mosquito repellent and grown throughout the United States as a hedging plant. It is dioecious, with male and female flowers borne on separate plants. Maclura is closely related to the genus Cudrania, and hybrids between the two genera have been produced. Some botanists recognize a more broadly defined Maclura that includes species previously included in Cudrania and other genera of Moraceae. The genus likely originated in South America during the Paleogene.

Taxus brevifolia, the Pacific yew or western yew, is a species of tree in the yew family Taxaceae native to the Pacific Northwest of North America. It is a small evergreen conifer, thriving in moisture and otherwise tending to take the form of a shrub.

The western larch (Larix occidentalis) is a species of larch native to the mountains of western North America (Pacific Northwest, Inland Northwest); in Canada in southeastern British Columbia and southwestern Alberta, and in the United States in eastern Washington, eastern Oregon, northern Idaho, and western Montana. It is the most productive of the three species of larch native to North America.

Shepherdia, commonly called buffaloberry or bullberry, is a genus of small shrubs in the Elaeagnaceae family. The plants are native to northern and western North America. They are non-legume nitrogen fixers. Shepherdia is dioecious, with male and female flowers produced on separate plants.

Yucca glauca (syn. Yucca angustifolia) is a species of perennial evergreen plant, adapted to xeric (dry) growth conditions. It is also known as small soapweed, soapweed yucca, Spanish bayonet, and Great Plains yucca. Yucca glauca forms colonies of rosettes. Leaves are long and narrow, up to 60 cm long but rarely more than 12 mm across. Inflorescence is up to 100 cm tall, sometimes branched sometimes not. Flowers are pendent (drooping, hanging downward), white to very pale green. Fruit is a dry capsule with shiny black seeds.

Umbellularia californica is a large hardwood tree native to coastal forests and the Sierra foothills of California, and extending into the coastal forests southwestern Oregon and the mountains of northwestern Baja California. It is the sole species in the genus Umbellularia, in the laurel family Lauraceae. The tree's pungent leaves have a similar flavor to bay leaves, though stronger, and it may be mistaken for bay laurel. In Yuki, it is called pōl'-cum ōl. In Oregon, this tree is known as Oregon myrtle, while in California it is called California bay laurel, which may be shortened to

Quercus michauxii, the swamp chestnut oak, is a species of oak in the white oak section Quercus section Quercus in the beech family. It is native to bottomlands and wetlands in the southeastern and midwestern United States, in coastal states from New Jersey to Texas, inland primarily in the Mississippi–Ohio Valley as far as Oklahoma, Missouri, Illinois, and Indiana.

Ficus aurea, commonly known as the Florida strangler fig (or simply strangler fig), golden fig, or higuerón, is a tree in the family Moraceae that is native to the U.S. state of Florida, the northern and western Caribbean, southern Mexico and Central America south to Panama. The specific epithet aurea was applied by English botanist Thomas Nuttall who described the species in 1846. Ficus aurea is a strangler fig. In figs of this group, seed germination usually takes place in the canopy of a host tree with the seedling living as an epiphyte until its roots establish contact with the ground.

Quercus gambelii, with the common name Gambel oak, is a deciduous small tree or large shrub that is widespread in the foothills and lower mountains of western North America. It is also regionally called scrub oak, oak brush, and white oak. The common and scientific names, Gambel oak and Quercus gambelii, were named after the American naturalist William Gambel (1821–1849).

Platanus racemosa is a species of plane tree known by several common names, including California sycamore, western sycamore, California plane tree, and in North American Spanish aliso. Platanus racemosa is native to California and Baja California, where it grows in riparian areas, canyons, floodplains, at springs and seeps, and along streams and rivers in several types of habitats. It can be found as far north as Tehama and Humboldt counties.

Quercus dumosa, commonly known as Nuttall's scrub oak or coastal sage scrub oak, is a species of scrub oak belonging to the white oak group (subgenus Quercus, section Quercus). It is a shrub typically reaching heights of 1–3 m (3.3–9.8 ft), characterized by a scraggly and rounded appearance, with dense tangled reddish branches, small dark green leaves with distinct teeth, curly trichomes on the lower leaf surfaces, and narrow acute acorns. Native to the United States and Mexico, it is a rare species found in chaparral and coastal sage scrub on sandy soils often within sight of the ocean, and

Aesculus californica, commonly known as the California buckeye or California horse-chestnut, is a species of buckeye native to California and southwestern Oregon.

Triphora is a genus of flowering plants from the orchid family, Orchidaceae. It is native to South America, Central America, southern Mexico, the West Indies and eastern North America as far north as Ontario. Noddingcaps is a common name for plants in this genus. Triphora amazonica Schltr. - Florida, Caribbean, south to Brazil Triphora carnosula (Rchb.f.) Schltr. - Brazil Triphora craigheadii Luer - Florida Triphora debilis (Schltr.) Schltr. - southern Mexico, Costa Rica, Guatemala, Panama Triphora duckei Schltr. - Brazil Triphora foldatsii Carnevali - Venezuela Triphora gentianoides (Sw.)

Tipularia is a genus of temperate terrestrial orchids (family Orchidaceae). As of December 2025, Plants of the World Online accepts the following species: Tipularia discolor (Pursh) Nutt. Tipularia japonica Matsum. Tipularia josephi Rchb.f. ex Lindl. Tipularia odorata Fukuy. Tipularia szechuanica Schltr.

Pterospora, commonly known as pinedrops, woodland pinedrops, Albany beechdrops, or giant bird's nest, is a North American genus in the subfamily Monotropoideae of the heath family, and includes only the species Pterospora andromedea. It grows as a mycoheterotroph (relying on fungi rather than photosynthesis for nutrients) in coniferous or mixed forests. It is widespread across much of Canada as well as the western and northeastern United States to Mexico. Along with Monotropa it is one of the more frequently encountered genera of the Monotropoideae.

Alnus rhombifolia, the white alder, is an alder tree native to western North America, from British Columbia and Washington east to western Montana, southeast to the Sierra Nevada, and south through the Peninsular Ranges and Colorado Desert oases in Southern California. It occurs in riparian zone habitats at an altitudes range of 100–2,400 metres (330–7,870 ft). While not reported in northern Baja California, it has been predicted on the basis of its climatic adaptation to occur there also. Alnus rhombifolia is primarily found in the chaparral and woodlands, montane, and temperate forests

Alnus maritima ( also known as the seaside alder, delmarva alder, or brook alder) is a species of shrub or small tree in the family Betulaceae. Alnus maritima is endemic to the United States, and is found naturally in three disjunct populations in Oklahoma, Georgia, and in Maryland and Delaware on the Delmarva Peninsula. Alnus maritima is the only autumn-blooming member of the genus Alnus native to North America. All other North American alders bloom in the spring. The autumn-blooming phenology is a characteristic that Alnus maritima shares with two old-world Alnus species, Alnus nitida and

Shepherdia argentea, commonly called silver buffaloberry, bull berry, or thorny buffaloberry, is a species of Shepherdia in the oleaster family. It is native to central and western North America.

Rubus parviflorus, the fruit of which is commonly called the thimbleberry or redcap, is a species of Rubus with large hairy leaves and no thorns. The species is native to northern temperate regions of North America. It produces red aggregate fruit similar in appearance to a raspberry; although edible, it is too soft for major commerce. It is cultivated as an ornamental.

Oxalis oregana, known as redwood sorrel or Oregon oxalis, is a species of the wood sorrel family, Oxalidaceae, in the genus Oxalis native to moist Douglas-fir and coast redwood forests of western North America from southwestern British Columbia to Washington, Oregon, and northern California. The species is now recognized as distinct from Oxalis smalliana, with which it was previously conflated.

Carex aurea is a species of sedge known by the common name golden sedge. It is native to much of North America, including most of Canada and the western, upper Midwest, and northeastern United States. It grows in wet habitat, often on soils of a basic pH.

Atriplex canescens (or chamiso, chamiza, four-wing saltbush) is a species of evergreen shrub in the family Amaranthaceae (subfamily Chenopodioideae) native to the western and midwestern United States.

Artemisia tridentata, commonly called big sagebrush, Great Basin sagebrush or simply sagebrush (one of several related species of this name), is an aromatic shrub from the family Asteraceae. It grows in arid and semi-arid conditions, throughout a range of cold desert, steppe, and mountain habitats in the Intermountain West of North America. Big sagebrush and other Artemisia shrubs are the dominant plant species across large portions of the Great Basin. Sagebrush provides food and habitat for a variety of species, such as sage grouse, pronghorn antelope, grey vireo, pygmy rabbit, and mule

Artemisia ludoviciana is a North American species of flowering plant in the daisy family Asteraceae, known by several common names, including silver wormwood, western mugwort, Louisiana wormwood, white sagebrush, lobed cud-weed, prairie sage, and gray sagewort. Ludoviciana is the Latinized version of the word Louisiana.

Acer grandidentatum, commonly called bigtooth maple or western sugar maple, is a species of maple native to interior western North America. It occurs in scattered populations from western Montana to central Texas in the United States and south to Coahuila in northern Mexico.