Primula is a genus of herbaceous flowering plants in the family Primulaceae. They include the primrose, a familiar wildflower of banks and verges. Other common species are P. auricula (auricula), P. veris (cowslip), and P. elatior (oxlip). These species and many others are valued for their ornamental flowers. They have been extensively cultivated and hybridised. Primula are native to the temperate Northern Hemisphere, south into tropical mountains in Ethiopia, Indonesia, and New Guinea, and in temperate southern South America. Almost half of the known species are from the Himalayas.
Melanthieae is a tribe of flowering plants within the family Melanthiaceae. Molecular phylogenetic studies in the 21st century have resulted in a large-scale reassignment of many of its species to different genera; in particular the genus Zigadenus (deathcamases) has been restricted to a single species, Zigadenus glaberrimus. Plants contain alkaloids, making them unpalatable to grazing animals; many are very poisonous to both animals and humans.
Triadenum, known as marsh St. John's worts, is a small genus of flowering plants in the family Hypericaceae. The genus is characterized by opposite, blunt-tipped leaves and pink flowers with 9 stamens. They are distributed in North America and eastern Asia.
Allium validum is a species of flowering plant commonly called swamp onion, wild onion, Pacific onion, or Pacific mountain onion. It is native to the Cascade Range, to the Sierra Nevada, the Rocky Mountains, and other high-elevation regions in California, Oregon, Washington, Nevada, Idaho and British Columbia. It is a perennial herb and grows in swampy meadows at medium and high elevations.
Quercus tardifolia, the Chisos Mountains oak or lateleaf oak, is a rare North American species of oak. It has been found in the Chisos Mountains inside Big Bend National Park in Texas, and in the nearby Sierra del Carmen across the Río Grande in northern Coahuila.
Amphipappus is a North American genus in the family Asteraceae. It is native to desert regions of the southwestern United States, in southern California, southern Nevada, Arizona, and southeastern Utah.
Butomus is the only known genus in the plant family Butomaceae, native to Europe and Asia. It is considered invasive in some parts of the United States.
Hypericum canariense is a species of flowering plant in the family Hypericaceae known by the common name Canary Islands St. John's wort. It is the sole member of Hypericumsect. Webbia.
Centaurea jacea, brown knapweed or brownray knapweed, is a species of herbaceous perennial plants in the genus Centaurea native to dry meadows and open woodland throughout Europe. It grows to 10–80 centimetres (4–31 in) tall, and flowers mainly from June to September.
Alisma lanceolatum is a species of aquatic plant in the water plantain family known by the common names lanceleaf water plantain and narrow-leaved water plantain. It is widespread across Europe, North Africa and temperate Asia. It is naturalized in Australia, New Zealand, Oregon, California and British Columbia. It is considered a noxious weed in some places.
Alopecurus aequalis is a common species of grass known as shortawn foxtail or orange foxtail. It is native to much of the temperate Northern Hemisphere from Eurasia to North America. It is most commonly found in areas near fresh water, such as the margins of ponds and ditches.
Spiranthes cernua, commonly called nodding lady's tresses, or nodding ladies' tresses, is a species of orchid occurring from Maritime Canada to the eastern and southern United States. As the common name suggests cernua means "nodding", or "bowed" in Latin.
Triantha is a small genus of flowering plants in the family Tofieldiaceae, first described as a genus in 1879. False asphodel is a common name for plants in this genus.
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.
Najas gracillima, the slender waternymph, is a submerged species of aquatic plant in the Hydrocharitaceae family. found in lakes and streams. It is native to China, Russian Far East, Japan, Korea, Taiwan, Iran, Alberta, Ontario, Newfoundland, Nova Scotia, New Brunswick, the eastern United States. It is also considered introduced and naturalized in France, Spain, Italy and California.
Brachytheciaceae is a family of mosses from the order Hypnales. The family includes over 40 genera and 250 species.
Kindbergia praelonga, known as common feather-moss, is a species of moss belonging to the family Brachytheciaceae. It is a medium to large size moss with pinnate leaves. The species is of interest for having properties that may be beneficial for human health.
Crumia latifolia is a species of moss belonging to the family Pottiaceae, and is the sole representative of the genus Crumia.
Crotalaria spectabilis, the showy rattlebox or showy rattlepod, is a species of flowering plant in the pea family Fabaceae. It is native to the Indian Subcontinent, southern China, and Southeast Asia. It is a perennial herb that grows up to 0.6–1.5 m (24–59 in) tall. It grows in montane grasslands. It was introduced to most of the world's tropics and subtropics and is now a serious agricultural pest species. It is toxic to livestock, causing liver damage.
Ulota crispa, the crisped pincushion moss, is a species of acrocarpous moss in the genus Ulota native to eastern North America. It is generally found in tight mounds on tree bark.
