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Issue: Vol. 778 No. 3: 9 Oct. 2026
Type: Article
Published: 2026-10-09
DOI: 10.11646/phytotaxa.778.3.3
Page range: 244-258
Abstract views: 18
PDF downloaded: 0

Two new species of Impatiens (Balsaminaceae) from Yunnan, China

CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture; Wuhan Botanical Garden; Chinese Academy of Sciences; Wuhan 430074; China; Sino-Africa Joint Research Center; Chinese Academy of Sciences; Wuhan 430074; China
Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; China
Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; China
Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; China
Gaoligongshan National Nature Reserve Nujiang Administration Bureau; Nujiang 673200; China
CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture; Wuhan Botanical Garden; Chinese Academy of Sciences; Wuhan 430074; China; Sino-Africa Joint Research Center; Chinese Academy of Sciences; Wuhan 430074; China; College of Ecological Environment; Tibet University; Lhasa 850000; China
CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture; Wuhan Botanical Garden; Chinese Academy of Sciences; Wuhan 430074; China; Sino-Africa Joint Research Center; Chinese Academy of Sciences; Wuhan 430074; China
Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; China
CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture; Wuhan Botanical Garden; Chinese Academy of Sciences; Wuhan 430074; China; Sino-Africa Joint Research Center; Chinese Academy of Sciences; Wuhan 430074; China
Eudicots Balsaminaceae Impatiens sect. Racemosae Impatiens sect. Uniflorae New Taxa Taxonomy

Abstract

Two new species of Impatiens (Balsaminaceae) from Yunnan, China, are here described. Impatiens rostrisepala can be easily recognized by its pale purplish-red (rarely white) flowers, and lower sepal being deeply infundibuliform, concave near the mouth on the lower side, and usually with a long beak at the mouth. Impatiens leptophylla differs from its closely related species in having lamina with an acute apex, venation with prominent midrib and indistinct tertiary veins adaxially, yellow flowers, and lower sepal spur with a non-circinnate apex. Molecular phylogenetic analyses based on both nuclear ribosomal and plastid DNA sequences further support the recognition of these two taxa as distinct species.

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How to Cite

Peng, S., Ya, J.-D., Liu, C., Zhang, W., Huang, Y., Yuan, T.-H., Hu, G.-W., Zhang, T. & Wang, Q.-F. (2026) Two new species of Impatiens (Balsaminaceae) from Yunnan, China. Phytotaxa 778 (3): 244–258. https://doi.org/10.11646/phytotaxa.778.3.3