Asphodelus fistulosus is a species of plant known as hollow-stemmed asphodel, onionweed, onion-leafed asphodel, and pink asphodel. It is native to the Mediterranean region. It is an invasive exotic weed in the United States, with significant infestations in California, Arizona, New Mexico, and Texas. It is listed as a Federal Noxious Weed by the United States Department of Agriculture. It is also a common weed in parts of Australia, New Zealand, and Mexico, and it thrives in any area with a Mediterranean climate.
Allium campanulatum is a species of wild onion known by the common name dusky onion or Sierra onion. This is a flowering plant native to the western United States from southeastern Washington and northern Oregon to southern California, and western Nevada. The dusky onion grows in foothills and mountains, especially in dry areas, such as chaparral habitats.
Chimaphila menziesii, known by the common names little prince's pine and Little Pipsissewa, is a species of perennial wildflower in the heath family.
Epilobium palustre is a species of willowherb known by the common name marsh willowherb. This plant has a circumboreal distribution, and can be found farther south in mountainous areas.
Oenothera suffrutescens is a species of flowering plant in the evening primrose family known as scarlet beeblossom and scarlet gaura.
Gilia ophthalmoides is a species of flowering plant in the phlox family known by the common name eyed gilia. It is native to the Southwestern United States where it can be found in woodlands and high desert plateau.
Guillenia flavescens is a species of mustard plant. It is one of several species known by the common name yellow mustard, though the plant most widely known as yellow mustard is probably Sinapis alba. G. flavescens is a thin-stemmed annual herb growing large, lobed or toothed leaves up to 22 centimeters long around its base, and smaller, less toothed leaves along its gray-pink to brown stem. At intervals along the upper stem appear cream, yellowish, or very pale purple flowers, each somewhat cuboid in shape and about a centimeter long. The tips of the petals around the mouth are curled, flared, or claw-like. The fruit is a thin silique up to 9 centimeters long. This species is endemic to California, where it grows in the valleys and mountains surrounding the San Francisco Bay Area.
Hesperolinon drymarioides is a rare species of flowering plant in the flax family known by the common names drymary dwarf flax and drymaria-like western flax; it is named for its resemblance to genus Drymaria. It is endemic to California, where it grows in the central inland North Coast Range. Most of the few known occurrences have been noted in Lake County. It is a plant of serpentine soils in chaparral and woodland ecosystems. This is a small annual herb growing a thin branching brown stem low to the ground or erect to about 20 centimeters in height. Leaves appear in whorls of four on the lower part of the stem and are dark reddish green with plentiful glandular hairs. Its flowers have light pink-veined white petals in a corolla about a centimeter across. Protruding stamens hold large yellow or purplish-white anthers.
Allium tuolumnense is a rare species of wild onion, known by the common name Rawhide Hill onion.
Boechera stricta is a species of flowering plant in the mustard family known by the common name Drummond's rockcress. It is native to much of North America, including most of Canada, and the western and northeastern United States.
Astragalus inversus is a species of milkvetch known by the common name Susanville milkvetch.
Lewisia columbiana, the Columbian lewisia, is a species of flowering plant in the family Montiaceae. It is native to the western United States and British Columbia, where it grows in rocky mountain habitats.
Lewisia congdonii, known by the common name Congdon's lewisia, is a rare species of flowering plant in the family Montiaceae.
Leptosiphon montanus is a species of flowering plant in the phlox family known by the common name mustang clover.
Nama rothrockii is a species of flowering plant in the borage family known by the common name Rothrock's fiddleleaf. It is native to the mountains and plateaus of eastern California, such as the southern Sierra Nevada, and western Nevada and Arizona, where it grows in several types of local habitat.
Oxalis incarnata is a species of flowering plant in the woodsorrel family known by the common names pale pink-sorrel and crimson woodsorrel. It is native to southern Africa, but it can be found on other continents where it is an introduced species, often the descendant of garden escapees. It is grown and kept as an ornamental plant. This is a perennial herb growing from a system of rhizomes and bulbs. The branching, hairless stem grows to nearly 30 centimeters in maximum length. There may be small bulblets located along the stem above ground. The leaves are borne on long petioles in erect bunches, each leaf made up of three leaflets. The solitary flower arises on a peduncle. Each flower has five white to light pink petals.
Phlox austromontana is a species of phlox known by the common name mountain phlox. It is native to the southwestern United States and Baja California, where it grows in forested and wooded mountain habitat, scrub, and open areas. It is a mat-forming perennial herb growing in patches of very short stems. The lance-shaped leaves are no more than 1.5 centimeters long and are arranged oppositely in pairs on the short stems. The inflorescence is a solitary flower at the tip of each stem. The flower is white or light pink or lavender with five rounded lobes. It is just over a centimeter long.
Phlox caespitosa is a species of phlox known by the common name tufted phlox. It is native to western North America from British Columbia through the Great Basin to New Mexico, where it grows in scrub, woodland, and other open plateau habitat. It is one of several cushion-forming species that occur in the same region and require careful observation to distinguish. In the past, this species and Phlox douglasii have been erroneously lumped together.
Polygala lewtonii is a rare species of flowering plant in the milkwort family known by the common name Lewton's polygala, or Lewton's milkwort. It is endemic to Florida in the United States, where it is limited to the central ridge of the peninsula. There are about 49 occurrences of the plant remaining. Most occurrences contain very few plants. The species is threatened by the loss and degradation of its habitat. This is a federally listed endangered species of the United States.
Larsenianthus assamensis is a species of the genus Larsenianthus in the ginger family (Zingiberaceae). It was first described in 2010 and is native to northeastern India.
