Randall Morgan

Polygonum hickmanii is a rare species of flowering plant in the buckwheat family known by the common names Scotts Valley polygonum and Hickman's knotweed. It is endemic to Santa Cruz County, California, where it is known from only two sites in the Scotts Valley. It grows on coastal prairie on mudstone and sandstone substrates, in an area known for its spring wildflowers. The small plant was first noted in 1990 and described as a new species in 1995. The plant is a federally listed endangered species. Polygonum hickmanii is a small annual plant forming compact patches on the ground, its stem

Trifolium jokerstii is a rare species of clover known by the common names Jim's clover and Butte County golden clover.

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Platanthera yadonii, also known as Yadon's piperia or Yadon's rein orchid, is an endangered orchid endemic to a narrow range of coastal habitat in northern Monterey County, California. In 1998 this plant was designated as an endangered species by the United States government, the major threat to its survival being continuing land development from an expanding human population and associated habitat loss. One of the habitats of Yadon's piperia, the Del Monte Forest near Monterey, California, is the subject of a federal lawsuit, based upon endangerment of this organism along with several other

Platanthera colemanii is a rare species of orchid known by the common names Coleman's piperia and Coleman's rein orchid. It is endemic to California, where it is known from scattered occurrences along the Sierra Nevada and one disjunct location in Colusa County, California. It grows in coniferous forests and chaparral in deep sandy substrates. It was differentiated from the very similar Platanthera unalascensis in 1993. It grows erect to about half a meter in maximum height. The basal leaves are narrow and almost grasslike, measuring up to 16 centimeters long and no more than 2 wide. Leaves

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