David Edward Boufford

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Cornus elliptica is a species of dogwood found in Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan provinces of China at elevations of 300–2200 meters.

Circaea × skvortsovii is a hybrid of flowering plants in the evening primrose family Onagraceae. The parents of the hybrid are Circaea cordata and Circaea canadensis subsp. quadrisulcata.

Circaea × ovata is a hybrid of flowering plants in the evening primrose family Onagraceae. The parents of the hybrid are Circaea cordata and Circaea mollis.

Circaea × mentiens is a hybrid of flowering plants in the evening primrose family Onagraceae. The parents of the hybrid are Circaea alpina and Circaea erubescens.

Circaea × decipiens is a hybrid of flowering plants in the evening primrose family Onagraceae. The parents of the hybrid are Circaea erubescens and Circaea canadensis subsp. quadrisulcata.

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Mahonia imbricata is a shrub in the family Berberidaceae, first described in 2001. It is endemic to China, known from Guizhou and Yunnan Provinces. As of 2023 the status of the species is uncertain with POWO listing it as an unplaced species, one for which there is not enough information to determine its validity.

Mahonia cardiophylla is a shrub in the Berberidaceae described as a species in 2001. it is endemic to China, native to the provinces of Guangxi, Hunan, Sichuan, and Yunnan. However, as of 2023 Plants of the World Online reports it as an "unplaced" species name that cannot be accepted or correctly placed as a synonym of an accepted name. Similarly World Flora Online describes it as "unchecked", a species that is awaiting taxonomic scrutiny.

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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

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Circaea × sterilis is a hybrid of flowering plants in the evening primrose family Onagraceae. The parents of the hybrid are Circaea alpina and Circaea canadensis.

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