Impatiens bijieensis (Balsaminaceae), a new species from karst plateau in Guizhou, China

Abstract

Impatiens bijieensis X.X. Bai & L.Y. Ren, sp. nov. from northwest Guizhou Province, China, is described and illustrated. This new species is distributed discontinuously in Jiulongshan, Dafang County and Dajiucaiping, Hezhang County, both of which are in the Wumeng Mountain area, a karst plateau landform. The new species is morphologically similar to I. pterosepala Hook.f., I. lasiophyton Hook.f. and I. leptocaulon Hook.f. in height and flower shape and it especially resembles I. lasiophyton in pilosity. However, it differs in its deep purplish-red flower, 2-lobed lower sepal apex and cylindrical capsule. A detailed description, colour photographs and a provisional IUCN Red List assessment are provided along with discussions of its geographical distribution, ecology and morphological relationships with other similar species.

Species Diversity and Geographical Distribution Patterns of Balsaminaceae in China

“…47) [4], Flora of China (Vol. 12) [5], and local flora books at all levels, supplemented by monographs on the genus Impatiens; family members included in the Species 2000 China node; and journal papers on new taxa and national records of the genus Impatiens in China published up to February 2023 [17][18][19][20][21].…”

Impatiens zhaojueensis (Balsaminaceae) sp. nov. from Sichuan, China

“…Due to its unique landform and variable climate, southwestern China (covering the provinces of Sichuan, Yunnan, Guizhou, Tibet and Chongqing) is home to a variety of Impatiens species. In recent years, numerous new species have successively been discovered in this area (Cai et al 2015, Luo et al 2015a, b, Tan et al 2015, Ding et al 2016, Guo et al 2016, Xia et al 2019, Peng et al 2020, 2021a, b, Xue et al 2020, Zhang et al 2020, Gu et al 2021, Liao et al 2021, Song et al 2021a, b, Ren et al 2022, Wang et al 2022, Yuan et al 2022a), increasing China's Impatiens species to 352 (Yuan et al 2022b).…”

Impatiens liupanshuiensis (Balsaminaceae), a new species from Guizhou, China

“…In Guizhou, 61 species of Impatiens have been recorded ( Peng et al 2021a ; Yu et al 2021 ). Additionally, there is one other species of Impatiens from Guizhou currently in press ( Ren et al 2022 ).…”