[Botany • 2026] Impatiens lancifolia (Balsaminaceae) • A New scapigerous Species from the Peak Wilderness [Sri Lankan Balsaminaceae Study I]

Impatiens lancifolia C.Bandara, Atthanagoda & Kariyawasam, 

in Bandara, Atthanagoda, Adhikari et Kariyawasam, 2026. 

DOI: doi.org/10.11646/phytotaxa.758.3.6  

 facebook.com: Champika BANDARA  

 

Abstract 

Impatiens lancifolia (Balsaminaceae), a new scapigerous species is described from the Peak Wilderness Sanctuary, Central Highlands of Sri Lanka based on the morphological evidence. This new species resembles I. scapiflora and I. acaulis but, differs by having almost glabrous, lanceolate leaves with scattered hairs along the midrib and lateral veins, 2–3 pairs of lateral nerves, reddish stamen apex forming a red colour ring around androecium. A completed description, photographs, illustration and notes on their ecology and distribution are provided.

Balsam hotspot, Central Highlands of Sri Lanka, Endemic flora, scapigerous, taxonomy, Eudicots

Impatiens lancifolia C.Bandara, Atthanagoda & Kariyawasam sp. nov.

 

CHAMPIKA BANDARA, ANUSHA GAYAN ATTHANAGODA, HIMASH ADHIKARI and ISURU U. KARIYAWASAM. 2026. Sri Lankan Balsaminaceae Study I: Impatiens lancifolia, A New scapigerous Species from the Peak Wilderness.  Phytotaxa. 758(3); 277-284. DOI: doi.org/10.11646/phytotaxa.758.3.6 [2026-05-26]

ශ්‍රී ලංකාවට ආවේණික පළමු හා එකම scapigerous කූඩලු විශේෂය

The first and only scapigerous scapigerous species endemic to Sri Lanka

 facebook.com/ChampikaBANDARA127982/posts/122222896418309457

 

[Botany • 2026] Impatiens arakanensis & I. cirrosa (Balsaminaceae) • Two New Species from the Arakan Mountain Range of Myanmar [Contributions to the Flora of Myanmar X]

Impatiens cirrosa Nob.Tanaka & T.Sugaw.,

 

in Tanaka, Aung et Sugawara, 2026.  

 DOI: doi.org/10.51033/jjapbot.ID0361 

Photographed by T.Sugawara.

 

Abstract

Two new species, Impatiens arakanensis Nob.Tanaka & T.Sugaw. (Balsaminaceae) and I. cirrosa Nob.Tanaka & T.Sugaw., from the Arakan Mountain Range, Magway Region, southwestern Myanmar, are described here. Impatiens arakanensis is similar to I. decipiens Hook.f. in floral morphology and coloration, but differs in having axillary inflorescence (vs. terminal), smooth dorsal petals (vs. with horn-like appendage), and pubescent lower sepal (vs. glabrous). Impatiens cirrosa is similar to I. tripetala Roxb. in floral morphology, but differs in having purple lower sepals (vs. orange to pale orange) with filamentous cirrus at apex, connate lateral united petals (vs. free) and white ovary with red spots (vs. green). Both of the two new species likely belong to Impatiens subgenus Impatiens sect. Uniflorae.

Keywords: Arakan, balsam, Burma, new taxon, sect. Uniflorae, taxonomy

Impatiens arakanensis.
A. Habit. B. A diagonal front view of flower. C. A front view of flower. D. A side view of flower. E. Dissected flower, showing lower sepal, dorsal petal, and lateral united petals. Scale bars: 10 mm.

Photographed by T.Sugawara.

Impatiens arakanensis Nob.Tanaka & T.Sugaw., sp. nov.   

 Impatiens arakanensis is similar to I. decipiens in floral morphology and purplish coloration, but distinguished from it by having an axillary inflorescence (vs. terminal inflorescence), smooth dorsal petals (vs. with horn-like appendage), and pubescent lower sepal (vs. glabrous).

Etymology: The specific epithet “arakanensis” refers to the name of the Arakan Mountain Range in which its type locality is located. 

Impatiens cirrosa.
A. Habit. Arrows showing a filamentous cirrus. B, C. A diagonal front view of flower, showing a filamentous cirrus. D. A front view of flower. E. Dissected flower: a. Lower sepal. b. A young fruit with pedicel. c, d. Lateral united petals. e. Dorsal petal. Scale bars: 10 mm.

Photographed by T.Sugawara.

Impatiens cirrosa Nob.Tanaka & T.Sugaw., sp. nov.  

 Impatiens cirrosa is similar to I. tripetala in floral morphology, but distinguished from it by having purple lower sepals (vs. orange to pale orange) with filamentous cirrus at apex, connate lateral united petals (vs. free) and white ovary with red spots (vs. green).

Etymology: The specific epithet “cirrosa” refers to the most distinctive character of Impatiens cirrosa, which is a very distinct species with long filamentous cirrus at the apex of the lower sepal and lower margin of lamina (Figs. 3B, E, 5).

Nobuyuki Tanaka, Mu Mu Aung and Takashi Sugawara. 2026. Contributions to the Flora of Myanmar X: Two New Species of Impatiens (Balsaminaceae) from the Arakan Mountain Range of Myanmar. J. Jap. Bot. 101(2); 88-96. DOI: doi.org/10.51033/jjapbot.ID0361 [April 20, 2026]

[Botany • 2026] Impatiens pfutserensis (Balsaminaceae) • A New Species from Nagaland, India

Impatiens pfutserensis  S.Singh, B.Singh & M.Bhuyan,

in S.Singh, B.Singh, Bhuyan et Phukan, 2026. 

 taiwania.NTU.edu.tw/abstract/2167

Abstract 

A new species of Balsam, Impatiens pfutserensis S.Singh, B.Singh & M.Bhuyan, belonging to Impatiens sect. Racemosae Hook.f. & Thomson, is described herein from the Phek District of Nagaland, India. The species is distinguished by a unique combination of diagnostic characters: unwinged stems lacking swollen nodes, forward-directed marginal leaf teeth, an eight-flowered inflorescence, and pink flowers with white patches. It is further characterized by a long spur and a ridged capsule. While morphologically similar to I. stenantha Hook.f. and I. prainii Hook.f., I. pfutserensis differs from both in several key traits. Inhabiting subtropical montane forest ecosystems, the species is presented here with detailed data on its morphology, distribution, phenology, and conservation status, alongside photographic documentation to facilitate accurate identification.

Keyword: Balsaminaceae, biodiversity hotspot, eastern Himalaya, Impatiens pfutserensis, Indo-Burma, Nagaland, new taxon

Impatiens pfutserensis:
 A. natural habit, B. single leaf, C. different parts of a complete flower, D. inflorescence E. close look of complete flower, F. capsule.

Impatiens pfutserensis S.Singh, B.Singh & M.Bhuyan, sp. nov.  

Diagnosis: The new species is morphologically similar to Impatiens stenantha Hook.f. (Table 1), but can be distinguished with the later by its plant habit (succulent vs. non-succulent), plant height (15–30 cm tall vs. 40–90 cm tall, node (not swollen vs. swollen), stem (not winged vs. winged), lateral veins (4–6 pairs vs. 7–11 pairs), inflorescence (8- flowered vs. 3–4 flowered); flower colour (pink with white patches vs. yellow with dark red spots), longer spur (2.5–2.8 cm vs. 1.7–2.2 cm), capsule (clavate to subfusiform vs. linear). The new species is also resembling I. prainii Hook.f., and varies by its stem (unbranched, hollow, translucentgreen to reddish with adventitious roots vs. branched, solid), leaves (without stipule vs. distinct glandular stipule), inflorescence (8-flowered vs. 2 or 3-flowered), lower sepal (with long curved spur vs. short straight spur), and capsule (clavate vs. linear).

Sumit Singh, Bikarma Singh, Mantu Bhuyan and Tridip Phukan. 2026. A New Species of Impatiens from Nagaland, India. Taiwania. 71(2); 263-267. DOI: 10.6165/tai.2026.71.263 [25 March 2026] 

 taiwania.NTU.edu.tw/abstract/2167

[Botany • 2026] Impatiens ngariensis (Balsaminaceae) • A New Species from Xizang, China

 

Impatiens ngariensis S.Peng, G.W.Hu & Q.F.Wang,

Li, Yuan, T. Hu, G.-W. Hu, Peng et Wang, 2026. 

DOI: doi.org/10.3897/phytokeys.271.177400 

 

Abstract

A new species, Impatiens ngariensis (Balsaminaceae) from western Xizang, China, is described in this study. Morphological and phylogenetic evidence supports its taxonomic placement within I. sect. Racemosae. Phylogenetic analyses indicate that I. ngariensis forms a clade with I. thomsonii, I. bomiensis, I. fragicolor, I. edgeworthii and I. glandulifera. Morphologically, the new species closely resembles I. sulcata in petiole with 2 basal glands, subcorymbose-racemose inflorescences, lateral sepals ovate, dorsal petal suborbicular and capsule linear, but can be distinguished by several key characteristics, including a suborbicular dorsal petal with a cordate base and a shorter spur.

Key words: Impatiens, New Taxon, Phylogeny, Xizang

Impatiens ngariensis. A. Habitat; B. Whole plant; C. Adaxial and abaxial view of leaf; D. Glands; E. Roots and basal part of stem, showing node; F. Inflorescences; G. Front view of flower; H. Lateral view of flower; I. Dissection of a flower (a. dorsal petal; b. lateral sepals; c. lateral united petals; d. lower sepal; e. stamens and pedicel); J. Inflorescences with immature fruit; K. Seeds.

Photographed by Shuai Peng and Ru-Ping Li.

Impatiens ngariensis S.Peng, G.W.Hu & Q.F.Wang, sp. nov.

Diagnosis. Impatiens ngariensis is morphologically allied to I. thomsonii and I. sulcata, but differs from the former by its larger flowers, suborbicular (vs. orbicular) dorsal petal and a markedly shorter spur (4–6 mm vs. 1 cm); from the latter, it is distinguished by the oblong (vs. broadly dolabriform to broadly elliptic or ovate) upper petal, dolabriform (vs. subdolabriform to oblong-ovate) lower petal and a broadly funnel-form (vs. saccate) lower sepal.

 Ru-Ping Li, Tao-Hua Yuan, Tian Hu, Guang-Wan Hu, Shuai Peng and Qing-Feng Wang. 2026.  Impatiens ngariensis (Balsaminaceae), A New Species from Xizang, China. PhytoKeys. 271: 1-13.  DOI: doi.org/10.3897/phytokeys.271.177400 [10-02-2026]

[Botany • 2026] Impatiens longcanggouensis (Balsaminaceae) • A New Species from Sichuan, China

 

Impatiens longcanggouensis Q.Luo,   

in Luo, Chen, Yuan, Yang, Liu, Song et Ma, 2026. 

龙苍沟凤仙花  ||  DOI: doi.org/10.3897/phytokeys.270.174879

Abstract

Impatiens longcanggouensis Q.Luo (Balsaminaceae), a new species from Yingjing County, Sichuan Province, China, is described and illustrated. Its morphology, including pollen and seed characters observed via scanning electron microscopy (SEM), is documented in detail. The new species is morphologically similar to I. recurvicornis, but is readily distinguished by the following combination of characters: leaf margin shallowly arcuate-serrate (vs. serrulate); abaxial leaf surface usually purplish-red (vs. pale green); inflorescence commonly two-flowered (vs. one-flowered); bracts lanceolate, 2–2.5 mm long (vs. ovate, 3–4 mm long); flowers 1.2–1.8 cm long (vs. 3–4 cm long); dorsal petal 6–8 mm in diameter, with two erect, stout rostella along the abaxial mid-vein (vs. dorsal petal ca. 13 mm in diameter with a beaked apex); lower sepal narrowly funnel-form with a spreading mouth (vs. navicular with an oblique mouth); and capsule clavate (vs. linear).

Key words: Balsaminaceae, China, Impatiens longcanggouensis sp. nov., Sichuan

Impatiens longcanggouensis sp. nov.
A. Upper plant; B. Lower plant; C. Flower, lateral view; D. Flower, frontal view; E. Bract; F. Lateral sepals; G. Dorsal petal; H. Lateral united petals; I. Lower sepal; J. Anther.

 Drawn by Wang Ling from Q. Luo (holotype: PE).

Impatiens longcanggouensis sp. nov.
A. Habitat; B. Plant; C. Leaves; D. Adaxial scabrous hairs; E. Capsules; F. Flower anatomy; G–K. Flowers from different angles.

Impatiens longcanggouensis Q.Luo, sp. nov.

 

Diagnosis. Impatiens longcanggouensis is morphologically similar to I. recurvicornis, but is readily distinguished by the following combination of characters: leaf margin shallowly arcuate-serrate (vs. serrulate); abaxial leaf surface usually purplish-red (vs. pale green); inflorescence commonly two-flowered (vs. one-flowered); bracts lanceolate, 2–2.5 mm long (vs. ovate, 3–4 mm long); flowers 1.2–1.8 cm long (vs. 3–4 cm long); dorsal petal 6–8 mm in diameter, with two erect, stout rostella along the abaxial mid-vein (vs. dorsal petal ca. 13 mm in diameter with a beaked apex); lower sepal narrowly funnel-form with a spreading mouth (vs. navicular with an oblique mouth); and capsule clavate (vs. linear).

Etymology. The epithet longcanggouensis refers to the type locality: Longcanggou Yinjing County, Sichuan Province, China. The new species is named ‘龙苍沟凤仙花’ in Chinese.

 Qiang Luo, Hong Chen, Ying Yuan, Hong Yang, Chan Liu, Xinqiang Song and Shen Ma. 2026. Impatiens longcanggouensis (Balsaminaceae): A New Species from Sichuan, China. PhytoKeys. 270: 1-12. DOI: doi.org/10.3897/phytokeys.270.174879

[Botany • 2026] Impatiens tainingensis (Balsaminaceae) • A New Species from southeastern China

Impatiens tainingensis J.-D.Lin & P.Li, 

in Wang, Lin, B. Li, J. Li, Jin et P. Li, 2026.  

DOI: doi.org/10.3897/phytokeys.269.173115 

Photos by Jie-Dong Lin

Drawn by Bo-Heng Li

Abstract

Impatiens tainingensis J.-D.Lin & P.Li, sp. nov., is described and illustrated. It was collected from a moist valley of Mt. Zhuangyuanyan, Fujian Province, in Southeastern China. It resembles Impatiens platysepala Y.L. Chen, I. kuocangshanica (X.F. Jin & F.G. Zhang) X.F. Jin & Y.L. Xu and I. huangyanensis subsp. attenuata X.F. Jin & Z.H. Chen in the gross morphology of their pinkish purple flowers but differs in having smaller lateral sepals, subsaccate-funnel form lower sepals, shorter spurs, and capsules. The molecular phylogeny of Impatiens based on plastome and ITS sequences indicated that I. tainingensis is closely related to I. platysepala and I. wuyiensis J.S. Wang, Y.F. Lu & X.F. Jin, but morphology, phylogeny, and plastome structural variation comparison provide evidence for recognizing it as a distinct species.

Key words: Balsaminaceae, Impatiens kuocangshanica, I. tainingensis, I. wuyiensis, new species

Impatiens tainingensis.
A. Habitat; B. Whole plant; C. Flower, lateral view; D. Inflorescence; E. Flower, front view; F. Flower, lateral view; G. Flower structure and capsule.

(Photos by Jie-Dong Lin).

Painted illustration of Impatiens tainingensis.

(Drawn by Bo-Heng Li).

 Impatiens tainingensis J.-D.Lin & P.Li, sp. nov.

 

Diagnosis. Impatiens tainingensis is similar to I. platysepala, I. kuocangshanica and I. huangyanensis subsp. attenuata in pinkish purple flowers. But I. tainingensis differs from I. platysepala by its bracts green, persistent, linear-lanceolate, 1–2 mm long; lower sepal subsaccate-funnelform, spur 1.5–1.8 cm long. I. tainingensis is distinct from I. kuocangshanica and I. huangyanensis subsp. attenuata in having lower sepal subsaccate-funnelform, spur 1.5–1.8 cm long; lateral sepals suborbicular, callous, 6–8 × 5–8 mm; capsules fusiform, 1.5–2.0 cm long and seeds 2.0 × 1.0 mm.

 Meizhen Wang, Jiedong Lin, Boheng Li, Junlong Li, Xinjie Jin and Pan Li. 2026. Impatiens tainingensis (Balsaminaceae), A New Species from southeastern China. PhytoKeys. 269: 235-252. DOI: doi.org/10.3897/phytokeys.269.173115 

[Botany • 2025] Impatiens rajibiana (Balsaminaceae) • A New Species from Arunachal Pradesh, India

Impatiens rajibiana Chowlu, Borah, & A.Shenoy, 

in Chowlu, Shenoy, Ray, Kabeer et Borah, 2025.

 DOI: doi.org/10.20324/nelumbo/v67/2025/173506 

  Researchgate.net/publication/394946280

 

Abstract

Impatiens rajibiana, a new species of Balsaminaceae, is described herewith, along with detailed illustrations, from Western Arunachal Pradesh, India. It is distinguished by its solitary-flowered inflorescence, a long, horn-shaped auricle on the basal lobe of the lateral united petals, and a filiform, down-curved spur of the lower sepal with a bulbous apex. The species is, so far, known only from Arunachal Pradesh and represents a significant addition to the biodiversity of the Eastern Himalayas.

Keywords: Balsam, Eastern Himalaya, Endemic, West Kameng.

Impatiens rajibiana Chowlu, Borah, & A.Shenoy, sp. nov.

Etymology: The plant is named in honour of Dr. Rajib Gogoi of the Botanical Survey of India, in recognition of his significant contributions to the understanding of the family Balsaminaceae in the Indian Himalayas, including Northeast India, as well as for his outstanding work on Rhododendron and the Flora of Sikkim. 

K. Chowlu, A. Shenoy, A. Ray, A.A. Kabeer, S. Borah. 2025. Impatiens rajibiana (Balsaminaceae): A New Species from Arunachal Pradesh, India. Nelumbo. 67(1); 10–16. DOI: doi.org/10.20324/nelumbo/v67/2025/173506 [2025-10-09] 

 Researchgate.net/publication/394946280_Impatiens_rajibiana_a_new_species_from_Arunachal_Pradesh_India

[Botany • 2025] Impatiens meishanensis (Balsaminaceae) • A New Species from Sichuan, China

Impatiens meishanensis K.Huang & Z.X.Fu,  

 

in Zhang, Chen, Qu, Zheng, Li, Yue, Liu, Pan, Huang et Fu, 2025.

 DOI: doi.org/10.3897/phytokeys.260.150685

Photographs by Zhixi Fu.

Abstract

Impatiens meishanensis K.Huang & Z.X.Fu, sp. nov., a new species of Balsaminaceae from Meishan City, Sichuan Province, China, is described and illustrated. The complete chloroplast (cp) genome of I. meishanensis is 152,104 bp in length. Based on phylogenetic analysis of the complete cp genome, I. meishanensis represents a distinct species closely related to Impatiens faberi Hook.f. The new species can be distinguished from the latter by its unique morphological characteristics: lower sepal gable-boat-shaped (vs. funnel-shaped), spur straight (vs. curved), flower large, ca. 4 cm long (vs. ca. 3 cm long), and seeds ellipsoid with reticulate seed coat ornamentation (vs. oblong, smooth). In addition, a distribution map, a detailed morphological comparison with related species, and an assessment of the conservation status of this newly identified species are provided.

Key words: Impatiens, new species, morphology, phylogeny

Impatiens meishanensis K.Huang & Z.X.Fu, sp. nov.
Flower dissected.      A. Leaves; B. Capsules; C. Seeds.

Photographed by Zhixi Fu. Scale bars: 1 cm.

Impatiens meishanensis K.Huang & Z.X.Fu, sp. nov.
A. Habit; B. Population; C. Flower in lateral view; D. Flower in face view; E. Plant.

Photographs by Zhixi Fu.

 Yanru Zhang, Xinyu Chen, Tianmeng Qu, Xinyi Zheng, Bo Li, Jieli Yue, Xiaoqin Liu, Min Pan, Ke Huang and Zhixi Fu. 2025. Impatiens meishanensis (Balsaminaceae), A New Species from Sichuan, China. PhytoKeys. 260: 97-113. DOI: doi.org/10.3897/phytokeys.260.150685

[Botany • 2025] Impatiens selvasinghii (Balsaminaceae) • A smallest flowered New Balsam from Western Ghats, India

 

Impatiens selvasinghii Bharath & Karupp., 

in Yadav, Karuppusamy et Kumbhar, 2025.

 taiwania.ntu.edu.tw/abstract/2077 

  facebook.com/TaiwaniaOffice 

Abstract

Imaptiens selvasinghii Bharath & Karupp., an interesting new species of Balsaminaceae is described with a photographic figure from the Western Ghats of Kudremukha peak, Karnataka state, India. The detailed description of new taxon along with diagnostic characters between closely allied species, photographs, and distribution are provided to facilitate the easy identification. A provisional conservation status is also accessed according to IUCN Red Data Categories.

Keyword: Impatiens herbicola, Karnataka, Kudremukha peak, new species, smallest flower, taxonomy

Impatiens selvasinghii. 
 A. Flowering twig. B. flower front view. C. Anther and stamens. D. Flower with gynoecium. E. Flower side view. F. Leaf adaxial view. G. Leaf abaxial view. H. Standard petal. I. Lateral united petals. J. lip. K. Seeds. L. Capsule.

Impatiens selvasinghii Bharath & Karupp. sp. nov. 

Diagnosis: Impatiens selvasinghii Bharath & Karupp., is allied to Impatiens herbicola Hook.f., but differs by absence of extra petiolar gland (vs present), lanceolate to oblanceolate leaves (vs linear lanceolate), pendulous flowers (vs erect), large basal lobe, 0.5–0.8 mm (vs very small, less than 0.2 mm), lip without spur (vs lip with saccate spur), seeds 10–12 (vs many). Especially the smallest flower size 4 mm across among the known balsams and prominently lobed wing petals makes this species unique from its allied species (Table 1 & Fig. S1)

Pochamoni Bharath Simha Yadav, Subbiah Karuppusamy and Sonali M. Kumbhar. 2025. Impatiens selvasinghii (Balsaminaceae), A smallest flowered New Balsam from Western Ghats, India. Taiwania. 70(2); 335 - 338. DOI: 10.6165/tai.2025.70.335  taiwania.ntu.edu.tw/abstract/2077 [18 April 2025]

  facebook.com/TaiwaniaOffice/posts/1074203858063638

[Botany • 2025] Impatiens maolanensis (Balsaminaceae) • A New Species of Impatiens in a tiankeng from Guizhou, China

 

 Impatiens maolanensis Zhi-Bin Xiong & Q.Y.Wen, 

in Li, Wen, Wang, Huang, Xiong, Deng, Yi et Tang, 2025.  

茂兰凤仙花  ||  DOI: doi.org/10.3897/phytokeys.254.142981

Abstract

Impatiens maolanensis Z.B.Xiong & Q.Y.Wen (Balsaminaceae), a new species of Impatiens subg. Clavicarpa from Maolan National Nature Reserve, Guizhou, China, is described. The new species grows in a tiankeng (a large, naturally formed pit) connected to a dried-up underground river. I. maolanensis is similar to I. auriculata Chang Y. Xia & S. X. Yu, I. liboensis K. M. Liu & R. P. Kuang and I. tianlinensis S. X. Yu & L. J. Zhang, but differs from the latter three species in terms of orange-red flowers, roots, stems, bracts, dorsal petals, lateral sepals, lower sepals, pollen grains and seeds micromorphology. The micromorphological characteristics and surface patterning of pollen grains and seeds of the new species were examined using scanning electron microscopy (SEM). Pollen grains of I. maolanensis are triangular-round in polar view and elliptical in equatorial view. The pollen exine has an irregular and relatively smooth reticulate ornamentation, and under high magnification, granular protrusions can be observed. Seeds of I. maolanensis are black and narrowly ellipsoid. The seed coat has reticulate ornamentation with slightly sunken meshes, folded base, and granular protrusions within the meshes. Morphological and micromorphology evidence support the establishment of the new species. Our study provides detailed information on the new species, including morphological characteristics, phenology, photographs, palynology, seed micromorphology, etymology, habitat and distribution, and conservation assessment.

Key words: Balsaminaceae, morphology, new species, SEM, taxonomy

Habitat and morphology of Impatiens maolanensis Zhi-Bin Xiong & Q.Y.Wen, sp. nov.
A–C habitat D plant E front view of flower F–H different views of flower I anatomy of flower J root K capsule L seed

 (Photographed by Zhi-Bin Xiong and Qin-Ying Wen).

 Impatiens maolanensis Zhibin Xiong & Qinying Wen, sp. nov.

 

Diagnosis. Impatiens maolanensis is similar to I. auriculata (Figs 2A–G, 3E–H, 4D–F), I. liboensis (Figs 2H–N, 3I–L, 4G–I) and I. tianlinensis (Zeng et al. 2015, 2016) but its characteristics are significantly different from the latter three species in terms of orange-red flowers, thick fibrous root, stem with leaf scars and nodes, petioles, sessile or nearly sessile, bracts, outer lateral sepals, dorsal petal, lower sepal, and fruit color (Table 1).

...

 Bai-Zhu Li, Qin-Ying Wen, Jin-Dong Wang, Xiao-Xiang Huang, Zhi-Bin Xiong, Zhi-Juan Deng, Yin Yi and Xiao-Xin Tang. 2025. Impatiens maolanensis (Balsaminaceae), A New Species of Impatiens in a tiankeng from Guizhou, China. PhytoKeys 254: 189-200. DOI: doi.org/10.3897/phytokeys.254.142981

[Botany • 2024] Impatiens bungeusing (Balsaminaceae) • A New species from the Northern Gayo Plateau, Sumatra, Indonesia

 

Impatiens bungeusing Mustaqim & Ruchis.,  

in Mustaqim, Arico, Jayanthi, Andini, Pratiwi et Ruchisansakun, 2024.   

 taiwania.ntu.edu.tw/abstract/2035 

 facebook.com/TaiwaniaOffice 

Abstract

Impatiens is a diverse genus within the Balsaminaceae family, comprising over 1,120 species. The northern Gayo Plateau of Sumatra, an island in Southeast Asia, is renowned for its rich Impatiens diversity. In this paper, we described and illustrated a new species named Impatiens bungeusing from this area. This species is most similar to Impatiens vitellina Grey-Wilson but differs in having the distinct abaxial leaf venation in a dry state (vs obscure), lateral sepals falcate-oblong (vs narrowly lanceolate), lower sepals with U-shaped spur (vs straight), broadly ovate dorsal petal (vs ovate), and ovate sub-rhomboidal upper lateral united petals (vs oblong). This discovery brings the total number of known Impatiens species in Sumatra to forty-eight.

Keyword: Ericales, herbs, Impatiens tapanuliensis, Impatiens vitellina, Malesia, limestone plant, taxonomy, Uniflorae

Morphology of Impatiens bungeusing Mustaqim & Ruchis., sp. nov.
 A. Plants in habitat. B. Living plant. C. Inflorescence. D. Flower. E. Lateral sepals. F. Dorsal petals. G. Lateral united petals. H. Lower sepal. I. Pedicel and ovary. J. Fruit.

Scale: A = 4 cm, B = 3 cm, C–D = 1 cm, E = 2 mm, F = 3 mm, G–J = 5 mm. Photographs by Wendy A. Mustaqim.

Morphology of Impatiens bungeusing Mustaqim & Ruchis., sp. nov.
  A. Plant. B. Leaves showing petiole. C. Leaves showing apex and margin. D. Inflorescence. E. Flower, frontal view. F. Flower, lateral view. G. Pedicel, lower sepal, stamens, and ovary. H. Lateral sepal. I. Dorsal petal. J. Lateral united petals.

Scale: A = 3 cm, B–D = 5 mm, E–G = 1 cm, H = 3 mm, I–J = 5 mm. 

Illustrated by Yuanito Eliazar.

Impatiens bungeusing Mustaqim & Ruchis., sp. nov. 

Type: Indonesia. Aceh Province: Aceh Tengah Regency, Jagong Jeget, ..., 2100 m asl, 11 January 2023, Mustaqim 2577 (holotype: LGS; isotype: MEDA). 

Diagnosis: Impatiens bungeusing is similar to Impatiens vitellina Grey-Wilson. However, it differs in having the distinct abaxial leaf venation in a dry state (vs obscure), flowers with lower sepal having U-shaped spur (vs straight), broadly ovate dorsal petal (vs ovate), and ovate sub-rhomboidal upper lateral united petals (vs oblong) (Table 1).

Etymology: The specific epithet "bungeusing" is derived from the Gayo language. "Bunge" means flower, and "using" means yellow, reflecting the plant's bright yellow flowers.

Wendy A. Mustaqim, Zulfan Arico, Sri Jayanthi, Wanda R. Andini, Devi Pratiwi and Saroj Ruchisansakun. 2024. Impatiens bungeusing (Balsaminaceae), A New species from the Northern Gayo Plateau, Sumatra, Indonesia. Taiwania. 69(4); 554-559. DOI: 10.6165/tai.2024.69.554  taiwania.ntu.edu.tw/abstract/2035

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[Botany • 2024] Impatiens minnamparaensis (Balsaminaceae) • A New Species from the Nelliyampathy Region of southern Western Ghats, India

 

Impatiens minnamparaensis Sindhu Arya, Ambika, Alen Alex, V.Suresh, Sojan & V.S.A.Kumar,  

in Sindhu, Anilkumar, Pilllai, Philip, Sojan et Suresh, 2024.  

DOI: doi.org/10.11646/phytotaxa.650.1.7

 facebook.com: Arya Sindu 

 

Abstract

A new species, Impatiens minnamparaensis, belonging to section uniflorae is described and illustrated from southern Western Ghats of Kerala. It is morphologically similar to Impatiens sasidharanii but can easily be distinguished in having ovate-oblong leaf, milky white distal lobe of keel petal, red blotch on lower sepal, pollen architecture and capsule morphology. It is also showing similarities with I. rupicola but differs in shape of lower sepal, shape of distal lobe, number of flowers per axil, anther, pollen and capsule morphology. Impatiens minnamparaensis is assessed here as Endangered based on the categories and criteria of the IUCN Red List.

Nelliyampathy, Impatiens, taxonomy, uniflorae, Eudicots

Impatiens minnamparaensis Sindhu Arya, Ambika, Alen Alex, V.Suresh, Sojan & V.S.A.Kumar sp. nov. 

Arya Sindhu, Venugopalan Nair Saradhamma Anilkumar, Ambika Viswanathan Pilllai, Alen Alex Philip, Jose Sojan and Veerankutty Suresh. 2024. A New Species of Impatiens from the Nelliyampathy Region of southern Western Ghats, India.  Phytotaxa. 650(1); 83-92. DOI: doi.org/10.11646/phytotaxa.650.1.7

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[Botany • 2024] Impatiens cheruthoniensis & I. idukkiana (Balsaminaceae) • Two New Species from the Southern Western Ghats, India

 

Impatiens cheruthoniensis V.S.A. Kumar & Sindhu Arya
I. idukkiana V.S.A. Kumar & Sindhu Arya 

in Anil Kumar et Arya, 2024. 

 DOI: doi.org/10.5735/085.061.0119 

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Abstract

Two new species, Impatiens cheruthoniensis V.S.A. Kumar & Sindhu Arya and I. idukkiana V.S.A. Kumar & Sindhu Arya (Balsaminaceae), belonging to the section Uniflorae, are described and illustrated from Idukki District in the southern Western Ghats, Kerala Province, India. The new species morphologically resemble I. periyarensis and I. rupicola, respectively, but differ from them by morphology of dorsal auricles and capsule, shape of lower sepals, pollen surface, and by having extra-floral nectaries on stem.

 

 

Impatiens cheruthoniensis V.S.A. Kumar & Sindhu Arya 

I. idukkiana V.S.A. Kumar & Sindhu Arya

Venugopalan Nair Saradamma Anil Kumar and Sindhu Arya. 2024. Impatiens cheruthoniensis and I. idukkiana (Balsaminaceae), Two New Species from the Southern Western Ghats, India. Annales Botanici Fennici. 61(1):131-137. DOI: doi.org/10.5735/085.061.0119 

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[Botany • 2024] Impatiens lhunzeensis (Balsaminaceae) • A New Species from Southern Xizang, China

 

 Impatiens lhunzeensis   

in Tian, Yuan, Peng, Yang, Hu et Wang, 2024. 

DOI: 10.11646/phytotaxa.661.1.3

Abstract

A new species, Impatiens lhunzeensis (Balsaminaceae), and a new record of I. leptocarpa from southern Xizang, China are reported and described in this study. Based on morphological and phylogenetic evidence, both I. lhunzeensis and I. leptocarpa are assigned to I. sect. Racemosae. The new species forms a clade with I. drepanophora, I. eubotrya and I. principis, while I. leptocarpa is phylogenetically close to I. radiata and I. harae. The new species has a sympatric distribution with and is morphologically similar to both I. radiata and I. harae, but differs by the hairy stem, the densely hairy leaf blade, the raceme inflorescence, the reniform dorsal petals, the navicular lower sepal, the broadly ovate to sub-orbicular upper petals and the triangular oblong lower petals.

Eudicots, Impatiens, Taxonomy, Phylogeny, Xizang

 Impatiens lhunzeensis.
A. habitat; B. flowering branch; C. branches, bottom view; D. root and basal part of stem, showing node; E. inflorescence; F. adaxial and abaxial view of leaf; G. front, bottom and lateral view of flower; H. dissection of a flower (a. dorsal petal; b. lateral sepals; c. lateral united petals; d. lower sepal; e. stamens and pedicel); I. capsule.

Photographed by Jing Tian.

Impatiens leptocarpa.
A. habit; B. root and basal part of stem, showing node; C. glands on petiole base and stem; D. inflorescence; E. front and lateral view of flower (b. outer lateral sepals, b'. inner lateral sepals); F. dissection of a flower (a. dorsal petal; b. outer lateral sepals; c. lateral united petals; d. lower sepal; e. stamens); G. capsules.

Photographed by Jing Tian.

Jing Tian, Tao-Hua Yuan, Shuai Peng, Zhu-Zhu Yang, Guang-Wan Hu and Qing-Feng Wang. 2024. A New Species of Impatiens (Balsaminaceae) from Southern Xizang, China with supplementary knowledge on I. leptocarpa Hook. f.  Phytotaxa. 661(1);  47-62. DOI: doi.org/10.11646/phytotaxa.661.1.3

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