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Iris series Tenuifoliae (Diels) G.H.M.Lawr., which is widely distributed across Central and East Asia, comprises approximately 10 recognized taxa. However, taxonomic boundaries an…

A new fern species, Cyrtomium lacrimipinnum (Dryopteridaceae), is described and illustrated from limestone ridges of Phong Nha–Ke Bang National Park, central Vietnam. It is most s…

A new species in Rubiaceae, Ophiorrhiza xishuiensis, is described from China. The new species is endemic to the Danxia landform at the juncture of Guizhou Province, Sichuan Provin…

Ophiorrhiza bibracteata (Rubiaceae), a new species from northwest Guangxi, China, is described and illustrated. It can be distinguished from its allies O. mitchelloides, O. nanlin…

Craticula scientiacivica Moyón & S. Blanco, sp. nov., is a new diatom species discovered during the CiDIA-micro citizen science project at the University of León, Spain, which eva…

The new species Breynia phongquangensis from Vietnam is described and illustrated. The new species is compared with three similar species in an identification key and a table of d…

Gentiana tingnongiana H.F.Cao & L.Zhang, sp. nov., and Gentiana shangwui H.F.Cao & L.Zhang, sp. nov., two new species of Gentianaceae from Sichuan, China, are described and …

Didymocarpus xuanlienensis, a new species from Vietnam, is described and illustrated here. It is morphologically similar to D. brevipedunculatus and D. purpureobracteatus in terms…

Vaccinium fangianum, a new species of Ericaceae from Yunnan Province, China, is described and illustrated. This species was previously misidentified as Vaccinium ardisioides. Morp…

Rhododendron jiucaipingensis Jian Xu & M. T. An, sp. nov. (Ericaceae), a new species of R. subgen. Hymenanthes, subsect. Argyrophylla, from northwestern Guizhou, China, is describ…

Columnea puipuiense R.Rojas & Vásquez, sp. nov., and Columnea valenzuelai, R.Rojas & Vásquez, sp. nov., two new species of Gesneriaceae endemic to the Bosque de Protección Pui Pui…

Sida gathwalarum (Malvaceae), a new species from Meerut, Uttar Pradesh, India, is described and illustrated based on morphological and phylogenetic evidence. Morphologically, the …

Selaginella brachyclada is reinstated as a separate species, distinct from S. rhodostachya, based on a comparative morphological review of herbarium specimens, including type spec…

A new species of Gesneriaceae, Hemiboea siccinvolucris B.Pan & Y.B.Lu, sp. nov., from Guangxi, China, is described. This species is morphologically similar to H. cavaleriei, H. su…

The genus Lysimachia (Primulaceae) is taxonomically complex, particularly within sect. Spicatae in East Asia. Field surveys in the Republic of Korea revealed a taxon exhibiting in…

The Luticola ventricosa (Kützing) D.G.Mann has long been regarded as a morphologically variable and cosmopolitan species, yet its taxonomic concept has remained unstable due to th…

Hybridization can be widespread among closely related plant species, and the resulting intermediate traits may complicate species delimitation and identification. Such taxonomic u…

Impatiens leshanensis X.H.Gu, K.Huang & Z.X.Fu, sp. nov., a new species of Balsaminaceae from Jinkouhe District, Leshan City, Sichuan Province, China, is described and illustrated…

Saxifraga zhiminiae, a remarkable new species of the genus Saxifraga sect. Ciliatae (Saxifragaceae), is described from Xizang, China. This new species morphologically differs from…

Octomeria (Orchidaceae) is a genus of predominantly epiphytic herbs distributed from Belize to Argentina. Ecuador hosts 30 species of Octomeria, making it one of the most species-…

To clarify the taxonomic identities of newly-collected Selaginella specimens from Guizhou, south-western China, we briefly reviewed the Selaginella species recorded in Guizhou and…

Primula maershanensis J.L.Gu & Z.K.Wu, a new species of Primulaceae from Sichuan, China, is described and illustrated. Morphological evidence supports the placement of P. maershan…

Mazus unguiculatus Bo Li, a new species of Mazaceae from Anhui Province in eastern China, is described and illustrated. Phylogenetic analyses based on combined chloroplast DNA reg…

Rhododendron luohanbaense, a new species of Ericaceae, is described from Zhaotong City in northeastern Yunnan Province, China. Morphologically, it is most similar to both R. pachy…

A new species of Orchidaceae, Hemipilia huanglongensis D.J.Xie & R.B.Zhang, was discovered on steep karst slopes in northern Sichuan, China and is described and illustrated, based…

Based on extensive fieldwork, herbarium and literature studies, and molecular phylogenetic analyses, we present a comprehensive taxonomic revision of the genus Miliusa in China. T…

Selaginella magna (Selaginellaceae), a new species in S. subg. Stachygynandrum from Guangxi, Fujian and Hunan, China, is here described and illustrated. It is the largest erect Se…

Ongoing field expeditions in Ecuador and herbarium research have resulted in the discovery of a new species and the stabilization of two names in Napeanthus (Gesneriaceae). Napean…

Ayenia nathaliae Dorr, sp. nov. is described and illustrated, and its relationships are discussed. It is known only from the Magdalena Medio subregion of Antioquia department, Col…

Perilimnastes dongchauensis (Melastomataceae), apparently endemic to Quang Tri province, Central Vietnam, is described here as a new species. It closely resembles P. suberalata in…

A new species of the genus Solms-laubachia was discovered in the Hengduan Mountains region of Sichuan Province, China, and it has been described and illustrated. Morphologically, …

Vietnamosasa is a small paleotropical woody bamboo genus of the Bambusa-Dendrocalamus-Gigantochloa (BDG) complex with unresolved interspecific relationships. It grows in the dry d…

Afzelia corallina A.Bianchi, S.Orsenigo & Baldesi (Fabaceae: Detarioideae) is described from the coral rag forests of the Tondooni Peninsula in the Ngezi–Vumawimbi Forest Reserve …

Sarcaulus is a small genus of neotropical trees in the Sapotaceae. Most specimens in herbaria are identified as S. brasiliensis, a species recognized from Costa Rica to Bolivia. M…

A comprehensive analysis of published records of terrestrial vascular plants reported from the Comino archipelago (Maltese Islands) since the mid-1800s and of plants recorded by u…

Sedum xinchangense (Crassulaceae), a new species from Zhejiang, eastern China, is described with illustrations. The new species is morphologically similar to S. lungtsuanense and …

The Indonesian Island of Sulawesi is home to a number of members of the ginger family, Zingiberaceae, with unusual turquoise flowers not found anywhere else. A recent paper reinst…

Asplenium paucipinnatum, a new fern species from Nakhon Si Thammarat, Thailand, is described. Morphologically, it closely resembles A. micantifrons in having short-creeping and ra…

Chrysosplenium ningqiangense (Saxifragaceae) is described as a new species discovered in Hanshuiyuan Forest Park, Ningqiang County, Shaanxi Province, China. Morphologically, it re…

During an extensive botanical survey in Ulugqat Township, Wuqia County, Xinjiang, China—a region along the country’s western border that remains significantly understudied—Astraga…

Petrocodon dahuaensis, a new species from a limestone area of Guangxi, China, is described and illustrated. The new species is similar to P. asterostriatus but differs in its leaf…

Based on morphological and plastid data, Coptis wawushanensis (Ranunculaceae), a new species from Hongya, Sichuan, China, is described and illustrated. Phylogenetic analyses (Maxi…

A newly discovered species of the paleotropical woody bamboo subtribe Bambusinae (Poaceae, Bambusoideae), Cochinchinochloa salta V.T. Tran, from coastal areas of Phu Yen Province,…

By reviewing the taxonomic history of Lysionotus, we provide an updated checklist of the species currently accepted in the genus. Currently, 39 species, one subspecies, and four v…

Two new species of Meiogyne (Annonaceae) are described from Malesia based on morphological evidence and the results of a recent molecular phylogenetic study: Meiogyne saundersii f…

A new species of Gesneriaceae, Primulina acutiloba C.Xiong, J.X.Fu & F.Wen, from the limestone karsts of Northwest Guangxi, China, is described and illustrated. Morphologically, i…

Gentiana daofuensis, a new species of the family Gentianaceae, is described and illustrated here. Currently, this species is known only from Daofu County, Sichuan Province, China.…

Iris cariciformis Z.Z.Zhang & G.X.Zhang, sp. nov. from China is described and illustrated. This species grows on cliff faces or open slopes in the central Qinling Mountains. Morph…

Passiflora agudeloi is herein recognised as a distinct species, based on a unique combination of vegetative, floral and seed characters. It differs from morphologically related sp…

A new species of Solenopsis (Campanulaceae), S. sphaciotica, is described and illustrated from Crete, Greece. Morphologically, it shows close affinities with S. gutermannii by hav…