John T. Kartesz

Myrica pensylvanica, the northern bayberry, is a species of Myrica native to eastern North America, from Newfoundland west to Ontario and Ohio (locally endangered), and south to North Carolina. It is also classified as Morella pensylvanica. Myrica pensylvanica is a deciduous shrub growing to 4.5 m tall. The leaves are 2.5–7 cm long and 1.5-2.7 cm broad, broadest near the leaf apex, serrate, and sticky with a spicy scent when crushed. The flowers are borne in catkins 3–18 mm long, in range of colors from green to red. The fruit is a wrinkled berry 3–5.5 mm diameter, with a pale blue-purple

Platanthera zothecina (synonym Habenaria zothecina, common name - alcove bog orchid) is a perennial plant in the orchid family (Orchidaceae) found in the Colorado Plateau and Canyonlands region of the southwestern United States and is found in the states of Utah, Arizona and Colorado.

Pyrrocoma lucida is a species of flowering plant in the family Asteraceae known by the common names sticky goldenweed and sticky pyrrocoma. It is endemic to California, where it is known only from the northern Sierra Nevada. It grows in mountain forests and clay flats with alkali soils. This is a perennial herb growing from a taproot, producing an erect stem up to 75 centimetres (30 in) tall. It is hairless and glandular, its surface resinous and shiny. The leaves are lance-shaped with sharply toothed edges, the largest near the base of the stem reaching 25 centimetres (10 in) in length.

Packera malmstenii is a rare species of flowering plant in the aster family known by the common name Podunk ragwort. It is endemic to Utah in the United States, where there about 19 occurrences in the southwestern part of the state. This perennial herb is generally about 8 to 15 centimeters tall, growing from a branching rhizome. It produces one stem or a small cluster of stems and leaves with oval blades up to 2.5 centimeters long. There is one or more flower heads, each with 13 blue-green phyllaries about a centimeter in length. The head may contain ray florets, or these may be absent.

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Packera castoreus is a rare species of flowering plant in the aster family known by the common names Beaver Mountain groundsel and Beaver Mountain ragwort. It is endemic to Utah in the United States, where it occurs only in the Tushar Mountains. This small alpine plant grows just a few centimeters tall with one or more woolly stems. The lower leaves have blades one or two centimeters long with woolly undersides. The flower heads have purple-green, woolly phyllaries and no ray florets. There are about 7 to 10 known occurrences of this plant on the high slopes of the Tushar Mountains of central

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Actaea rubifolia, commonly known as Appalachian black cohosh or Appalachian bugbane, is a species of flowering plant in the buttercup family. The plant does well in alkaline soils and mature forests. The "bugbane" in the name refers to its flowers' unpleasant smell, which can repel insects. It is poisonous if consumed by humans. The plant produces flowers in the early fall from August to October, and is distinctly identifiable by its large stamens and reduced white petals. The species is vulnerable to extinction; small populations exist in Tennessee, Virginia, Alabama, and the lower Ohio

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Packera serpenticola, commonly known as serpentine ragwort, is a species of flowering plant in the composite family. It is native to the Southeastern United States, where it is known only from a single site in Clay County, North Carolina, called the Buck Creek Serpentine Barrens. This is an area of serpentine soil derived from olivine and dunite that prevent forest growth, and is instead naturally barrens and savannas. This grassland community is known to harbor many rare species, including one other single-site endemic Symphyotrichum rhiannon, the Buck Creek aster. The identity of this

Dichanthelium hirstii is a species of grass known by the common name Hirst's panic grass. It is native to the eastern United States, where it is extant in Delaware, New Jersey, and North Carolina. It is extirpated in Georgia. This grass produces small tufts or large clumps of stems which can be up to a meter tall in some areas. The inflorescence is a panicle of small spikelets that grow pressed against the stem. This grass grows in ponds in the Pine Barrens on the coastal plain of New Jersey and on coastal grasslands in North Carolina. When it occurred in Georgia it grew in cypress swamps. It

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Sideroxylon reclinatum subsp. austrofloridense, known as the Everglades bully, is a species of rare plant native to southern Florida. It was described in 1990.

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