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In this study, Caroxylon vermiculatum (L.) Akhani & Roalson, which is distributed in Southwest Europe, Northwest and Central Africa, and the Middle East, is recorded for the first time from Türkiye. The species was collected from the Akçakale district of Şanlıurfa province, close to the Syrian border. The description of the species, synonyms, a distribution map, photographs of the specimens, and its morphological characteristics are given. In addition, the diagnostic characteristics of known perennial species of the genus Caryxylon from Türkiye were compared. [ABSTRACT FROM AUTHOR]

A new record for the Argentine adventitious flora is revealed thanks to a population of Achyranthes aspera in the Northeast of the Salta Province. The species has a wide distribution worldwide and behaves as a weed in crops. It is here morphologically described, along with its habitat, phenology, diagnostic characteristics, photographs, vernacular names, and information about its geographical distribution in Argentina and Bolivia. Finally, a hypothesis is proposed regarding its possible entry pathway into our country. [ABSTRACT FROM AUTHOR]

The nomenclatural status and typification of the names Arthrocaulon macrostachyum, Salicornia fruticosa, S. fruticosa var. deflexa, S. fruticosa var. glaucescens, S. fruticosa var. intermedia, S. fruticosa var. humilis, S. fruticosa var. pachystachya, S. fruticulosa, S. glauca, S. lignosa, S. macrostachya var. virescens, S. macrostachya var. glaucescens, S. perennis, S. radicans, S. radicans var. caespitosa, S. sarmentosa, S. sempervirens, and S. virginica, as well as an unnamed β-variety of S. fruticosa proposed by A. Bertoloni, are investigated. Concerning A. macrostachyum, we document that the type indicated in literature (G00177362) is not a holotype, and that lectotypification is necessary. A specimen from G (G00687638) is here designated as a lectotype. On the level of variety, Arthrocnemum fruticosum var. macrostachyum is an earlier legitimate name for Salicornia fruticosa var. pachystachya. Furthermore, Piirainen et al. are incorrect when citing Forsskål's "Salicornia" from Alexandria as "S. virginica Forssk."; it is not a new name and should be cited as S. virginica auct. non L., as published in Forsskål's Flora Aegyptiaco-Arabica. Like with numerous other parallel cases in Flora Aegyptiaco-Arabica, Forsskål's designation of "Salicornia virginica" for an Arabian plant is to be considered a misapplication of the earlier Linnaean name for an American plant. Arthrocnemum glaucum (a nomen illegitimum of Ungern-Sternberg), was listed as type species of Arthrocnemum by the Names in Current Use project; the basionym, Salicornia glauca Delile, is here lectotypified and identified as Arthrocaulon meridionale, published by Ramirez et al. Updated synonymies of Arthrocaulon macrostachyum, A. meridionale, Salicornia fruticosa, and S. perennis are proposed. Salicornia sempervirens is an invalid name according to Art. 36.1a of ICN. No original material was found for S. radicans var. caespitosa. This paper also refer to lecto- or neotypifications on specimens deposited at BM, G, LINN-HS, LY, MPU, NAP, and PAL, and their current taxonomic positions are suggested in a taxonomic part of the paper. [ABSTRACT FROM AUTHOR]

Abstract Gomphrena celosioides, popularly known as perpétua, perpétua brava, bachelor´s button and prostate globe amarahth, is used for the treatment of urinary tract disorders, kidney stones, for skin diseases, infectious diseases, gastrointestinal and respiratory conditions. Rich in phenolic acids and flavonoids, this plant has therefore a potential for use in cancer prevention. Given the above, the present research aimed to evaluate the carcinogenic effect of the ethanolic extract of G. celosioides (EEGc) in an alternative model of Drosophila melanogaster and the genotoxic and antigenotoxic effects in Swiss mice. The larval survival test and the detection of epithelial tumor clones were performed in D. melanogaster. The tested EEGc concentrations were 0.96, 1.92, 3.85 and 7.70 mg/mL. In Swiss mice, the genotoxicity and antigenotoxicity of doses of 100, 1,000 and 2,000 mg/Kg were evaluated. The results showed that EEGc at a concentration of 7.70 mg/mL reduced (p0.05). When associated with cyclophosphamide, EEGc was antigenotoxic (p

makkah - Saudi Arabia, is one of the most important cities, which faced a reduction in natural vegetative cover, due to the hot aridity, with a maximum temperature around 40-49°C, and scarcity of rainfall, the rate of rainfall is between 50-80 mm/year. A plant is supposed to be native if it has occurred naturally in a particular region, ecosystem, or habitat without human intervention. The aim of this study was to study the flora around Makkah city by choosing eight stands from different localities. The field work included relevé, the plots were about 10 × 10 meters in size. The study revealed that the eight stands were represented by 20 species belong to 8 families, Fabaceae and Apocynaceae were dominant by (34%), (25%) followed by Amaranthaceae (13%), Poaceae (12%) and Cucurbitaceae (5%); then (Apiaceae & Asteraceae) were represented by (4%), while Solanaceae was represented by only (3%) of the vegetation. Phanerophytes (40%) were the dominant while Hemicryptophytes (He) were the lowest value of life form (10%). The Floristic categories Saharo-Arabian (SA) and Sudano-Zambezian (AZ) were the dominant (38%), while Mediterranean (ME), Saharo-Sindian (SSI), Tropical (TR), Irano-Turanian (IT) were lowest value (6%). Rhazya stricta has a high number of species that were observed in native plants in study area (17%), while Cenchrus biflorus, Leptadenia pyrotechnica, Lycium shawii, Panicum turgidum, Senegalia asak, Senna italica, Stipellula capensis, Vachellia flava and Vachellia tortilis were the lowest with 3% over the stands. Finally, the diversity in species deficiency in Makkah. [ABSTRACT FROM AUTHOR]

Amaranthus L. is represented by 12 species in the flora of Bulgaria. Most of them are ruderal plants, widely distributed in the country. The representatives of amaranth in the Bulgarian flora are insufficiently studied. The aim of the present study is to study the morphological and karyological variability of one of the most widely distributed annual representatives of the genus in the country - Amaranthus albus L. A diploid chromosome number 2n = 2x = 32 was established. The total length of the haploid chromosome number in the studied populations varied from 14.57 µm to 27.39 µm. The pollen morphology and the seed morphology were examined using a scanning electron microscope (SEM). [ABSTRACT FROM AUTHOR]

The naturalization and invasion of alien species have caused a serious impact on the global environment and social development, and have become a global problem faced by countries in biodiversity management and ecological conservation. China is one of the countries most seriously affected by alien invasion, and the situation is serious in the early warning, management and governance of alien invasion. Based on field surveys and literature research, Chenopodiastrum murale (L.) S. Fuentes, Uotila & Borsch, an alien invasive plant of Amaranthaceae sensu lato, is first reported for flora of China. C. murale is native to the Mediterranean region and has spread to more than 40 countries in Europe, America, Africa and Oceania. It is an invasive alien plant with great harm, and it is also clearly prohibited by customs and quarantine departments. This exotic invasive plant is now found in Chenggong District, Kunming City, Yunnan Province. This paper describes the morphological characteristics of the species in detail, as well as brief introduction of its taxonomical history, and provides field ecological photos for identification and comparison. In addition, the possible introduction route of C. murale was analyzed, and its potential harm and invasive risks were briefly assessed. This new record clearly demonstrate that the background survey of Chinese alien invasive plants is still insufficient.

Some populations identifiable as Alternanthera flavescens were discovered in the Kerala region (SE‐India), representing the first record of the national Flora. A macro‐ and micro‐morphological description based on the plants found, as well as ecological notes, are given. The phenotypic plasticity observed was also discussed. [ABSTRACT FROM AUTHOR]

During field investigations in Morocco, two new alien species, Amaranthus spinosus (Amaranthaceae) and Cardamine occulta (Brassicaceae), were discovered as new to the country. Additionally, C. occulta seems to be the first record for continental Africa. The distribution and ecology of these species are discussed. [ABSTRACT FROM AUTHOR]

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During floristic research in 2017–2022 in the Emirate of Fujairah in the United Arab Emirates (UAE), the authors discovered new alien species that complement the species composition of the flora of vascular plants in the Emirate and the UAE as a whole. The article presents new records of five alien species previously unknown from the flora of UAE and Fujairah: Gomphrena serrata L. (Amaranthaceae), Portulaca pilosa L., P. grandiflora Hook., P. umbraticolaKunth (Portulacaceae), and Peperomia pellucida (L.) Kunth (Piperaceae). Gomphrena serrata which is rare in the country was found only in one place in the mountainous region of Fujarah, and it is a novelty for the flora of the Arabian Peninsula as a whole, while Portulaca pilosa was observed in several different areas of Fujairah Emirate and is also known for Saudi Arabia, Yemen and Oman. Peperomia pellucida was found only in a single locality in the “Alamarey plant nursery” in Dibba town but in large number of individuals. For every species, synonyms, overall distribution, habitat preferences, affinity and taxonomic remarks as well as the list of localities are given. The herbarium materials were deposited in the Herbarium of the Komarov Botanical Institute (LE, Saint-Petersburg, Russia), duplicates were sent to the Herbarium of Altai State University (ALTB, Barnaul, Russia) and the Scientific Herbarium of Fujairah (FSH, Wadi Wuraya National Park, Fujairah, UAE).

Abstract Salicornia rubra is a commonly occurring annual species of the salt playas of the Great Basin Desert of the western United States. In such habitats, plants experience high levels of ultraviolet radiation, which could potentially damage DNA. As a member of the Amaranthaceae (Caryophyllales), S. rubra shoots typically contain high concentrations of the red‐violet pigments called betacyanins, which are ultraviolet‐absorbing compounds. Nevertheless, some specimens of S. rubra are green even when growing with full exposure to the sun. We, therefore, tested several hypotheses regarding the causes of variation among S. rubra plants in betacyanin concentration and the role of betacyanins in the absorption of ultraviolet radiation. We measured ultraviolet radiation absorption and the concentrations of betacyanins and phenolic compounds of the cell sap expressed from red and green plants growing in full sun, as well as plants grown under various levels of shade. We found that while betacyanin concentrations were predictable from plant color (red plants contained more betacyanins than green plants), the ability to absorb ultraviolet radiation was determined primarily by the concentration of phenolic compounds, which was determined by the level of exposure to the sun. Therefore, the DNA of green plants growing in full sun appears to be at no greater risk than the DNA of red plants.

The Australian Camphorosmeae represent a monophyletic lineage that diversified to include ca. 150 spp. across 12 genera, and populate large parts of arid Australia. Tracking the origin and spread of this ancestrally salt and drought tolerant lineage provides additional evidence about the timing of the evolutionary history and phylogenetic assembly of arid habitats in Australia. Using a customized RADseq approach, sequence data for 104 species of the Australian Camphorosmeae representing all 12 genera were generated and included in phylogenetic and dating analyses. Furthermore, habitat type occurrences and preferences of species and clades were recorded. As suspected, the characters used to delimit current Australian Camphorosmeae genera do not support monophyletic groups, as phylogenetic analyses yielded 17 statistically supported clades across a large Maireana grade and crown radiation of Sclerolaena. The diversification of Australian Camphorosmeae is clearly linked to landscape changes and emerging new habitat types in arid Australia since the ancestral element likely arrived from temperate semi-arid to arid parts of continental Eurasia in the Middle Miocene. Migration was likely multidirectional and followed a west-to-east aridification. Crown group diversification was strongest during the Pliocene and likely promoted by the west-to-east expansion of Riverine Desert habitats and subsequent expansion and colonization of newly developing arid habitats. Rapid range expansion, fast habitat saturation, as well as periodic expansion, contraction and replacement of arid habitats, may have caused the rather species-poor clades of the earlier-divergent Maireana grade, compared to the continuously diversifying Sclerolaena clade. • Diversification of Australian Camphorosmeae is linked to landscape changes and emerging new habitat types. • A customized RADseq approach resolved the younger branches of a rapid radiation. • Phylogenetic analyses yielded 17 clades across a large Maireana grade and crown radiation of Sclerolaena. [ABSTRACT FROM AUTHOR]

Three populations of Amaranthus powellii were discovered in Kerala region (SE-India), representing the first record of this species for the national flora. A morphological description based on the Indian plants, as well as ecological data are given. A preliminary list of all the Amaranthus species occurring in India, which was never published during the last 136 years, is also provided. [ABSTRACT FROM AUTHOR]

In this study, Suaeda aegyptiaca (Hasselquist) Zohary is reported as a new record for Turkish flora from Akçakale district in Şanlıurfa province. The species is classified under section Salsina Moq. of the genus Suaeda Forssk. ex J.F. Gmel. in Suaedoideae subfamily. The comprehensive description, distribution maps in Turkey, habitat features, morphological characteristics and digital images of the species are given. [ABSTRACT FROM AUTHOR]

Axyris is a small genus of six species with a disjunct geographic range. Five species are present in Siberia, Central Asia, the Himalayas, and Tibet, whereas Axyris caucasica has been registered in the Central Caucasus only. Axyris species diversity is the highest in the Altai Mountains (four spp.), followed by the Tian Shan and Pamir Mountains (three spp.), and the Himalayas and Tibet (two spp.). Axyris sphaerosperma, sometimes considered endemic to Southern Siberia, in fact has a disjunct range: it is present in the lowlands of Eastern Siberia and in the Altai, Tian Shan, and Pamir Mountains. It has also been found in Mongolia and China for the first time. An updated detailed distribution of Axyris in Siberia is presented on the basis of thorough herbarium revisions. One nuclear and three plastid markers were selected for phylogenetic analysis. Divergence times were estimated using a time-calibrated Bayesian approach. Axyris shows two major clades: an Axyris amaranthoides clade and a clade including the remaining species. The latter clade consists of two subclades (A. sphaerosperma/A. caucasica and A. mira/A. prostrata + A. hybrida). The crown age for Axyris dates back to the Early Pliocene (~5.11 mya, the Zanclean). The ancestral range of Axyris covers Southern Siberia, Mongolia, NW China, and the Tian Shan/Pamir Mountains, with extensions toward Eastern Siberia, the Himalayas/Tibet, and the Caucasus. Fruit and seed characteristics of Axyris are discussed with reference to the present phylogenetic results. Closely related A. sphaerosperma and A. caucasica have the thickest seed coat among all Chenopodiaceae, and these traits have probably evolved as adaptations to extremely low winter temperatures. This reproductive peculiarity may explain the disjunct range of A. sphaerosperma, which is restricted to harsh climatic conditions.

Premise Pollen dispersal plays a critical role in gene flow of seed plants. Most often, pollen dispersal is measured using paternity assignment. However, this approach can be time‐consuming because it typically entails genotyping all pollen donors, receptors, and offspring at several molecular markers. Methods We developed a faster, simpler protocol to track paternity, using pollen receptors and grouped pollen donors that possess rare alleles. We tested this approach using wind‐pollinated Amaranthus tuberculatus and insect‐pollinated Solanum lycopersicum. After screening potential markers for rare alleles, we grew both species in experimental arrays under field conditions. Results All tested A. tuberculatus seeds and 97% of S. lycopersicum fruits could be assigned to the grouped pollen donors using each of two markers. From these results, we could infer paternity of untested offspring and assess pollen dispersal patterns in each array. Discussion By combining rare alleles and grouped pollen donors, we could assess pollen dispersal for both species and across all arrays after genotyping a small number of pollen donors and a representative subset of offspring. While directly applicable to A. tuberculatus and S. lycopersicum, this approach could be used in other species to assess pollen dispersal under field conditions.

Chromosome numbers (2n) in 16 invasive plant species from the families Amaranthaceae, Asteraceae, Caryophyllaceae, Lamiaceae, Onagraceae and Poaceae are reported on the material from the Altai Republic for the first time. Among them, chromosome complements were first examined in Russia for Chaiturus marrubiastrum (L.) Ehrh. ex Reichenb. (2n = 24) and Oenothera villosa Thunb. (2n = 14). Five species: Amaranthus lividus L. (2n = 34), Elisanthe noctiflora (L.) Rupr. (2n = 24), Galeopsis speciosa Mill. (2n = 16), Oenothera biennis L. (2n = 14) and Bromus japonicus Thunb. (2n = 14), were studied first from Siberia. The most part of the species studied are diploids. The general distribution and the history of floristic findings of these species in the Altai Republic are given. The data on chromosome numbers published earlier on the material from Russia are cited.

The article presents the results of the analysis of the species composition of naturally growing medicinal plants in the Dondyztau natural conditions and their ranking. The result of floristic analysis found out that 93 species of medicinal plants belonging to 70 genera and 27 families grow on the territory of Dongyztau chink. The leading families in this area are Asteraceae, Amaranthaceae, Fabaceae, Brassicaceae, Apiaceae, Caryophyllaceae, Boraginaceae and Polygonaceae. [ABSTRACT FROM AUTHOR]

The rough-fruit amaranth Amaranthus tuberculatus was discovered in September 2019 during fieldwork in the vicinity of Tuzla city (northeastern Bosnia). A. tuberculatus is native to North America but has been introduced in some areas beyond its natural range. This is the first record of this species for Bosnia and Herzegovina and the Balkans. The paper presents a short morphological description and photographs of the species based mainly on the collected specimens, as well as distribution of the taxon. [ABSTRACT FROM AUTHOR]

In this paper, nomenclatural issues concerning nine Amaranthus taxa in the Australian flora are clarified. Lectotypes are designated for names of three currently accepted species (A. interruptus R.Br., A. rhombeus R.Br. and A. undulatus R.Br.) and two names now being considered to be taxonomic synonyms (A. lineatus R.Br. and A. macrocarpus var. pallidus Benth.). The earlier 'holotype' citations for the taxonomic synonym A. incurvatus Timeroy ex Gren. & Godr. and the currently accepted species A. quitensis Kunth are here considered effective lectotypifications. The holotype material for the nomenclatural synonym A. mitchellii var. grandiflorus J.M.Black is clarified. A neotype is designated for A. pallidiflorus var. viridiflorus Thell. (now considered to be a taxonomic synonym). [ABSTRACT FROM AUTHOR]

On the occurrence of Atriplex canescens (Amaranthaceae) in Algeria: ecology, taxonomy and biogeography. - Atriplex canescens var. gigantea is recorded for the first time for the non-native flora of Algeria. The description of the finding locality, taxonomic notes and detailed distribution are provided. [ABSTRACT FROM AUTHOR]

Quinoa has acquired a great interest due to its high content of nutrients and biomolecules that have nutritional and medicinal properties. The aim of this study was to compare the total phenolic content (TPC), total flavonoids (TF), and the antioxidant capacity of 20 varieties of seeds and sprouts of quinoa extract. Quinoa seeds were germinated for 72 h and dried in an oven at 45 °C. The extracts were obtained by dynamic extraction using methanol. Phytochemical analysis with liquid chromatography coupled with mass spectrometry (LC-ESI-MS/MS), TPC, TF, and the antioxidant capacity was carried out and compared between both extracts. The TPC was determined with Folin-Ciocalteu reagent, TF with AlCl3, and the antioxidant capacity was determined according to the DPPH and ABTS assays. Sprout extracts showed high values of TPC (31.28 ± 0.42 mg GAE/g; Pasankalla variety), TF (14.31 ± 0.50 mg EQ/g; black Coito variety), and antioxidant capacity (IC50 (DPPH): 12.69 ± 0.29 µg/mL and IC50 (ABTS): 3.51 ± 0.04 µg/mL; Pasankalla). The extracts of the Pasankalla variety revealed 93 and 90 phytochemical constituents in the seeds and sprouts, respectively, such as amino acids, phenolic acids, flavonoids, fatty acids, and triterpene saponins, among others. Quinoa sprouts showed a high content of TPC and TF, and high antioxidant capacity compared with seed extracts, especially the Pasankalla variety.

The existence of more of 16,000 varieties of quinoa accessions around the world has caused a disregard on their structural and phytochemical characteristics. Most of such accessions belong to cultivars settled in Colombia. The goal of this research was to evaluate the structural attributes and antioxidant capacities from six quinoa cultivars with high productive potential from central regions in Colombia. This study used middle-range infrared spectroscopy (IR-MIR) to determine the proteins, starch and lipids distinctive to quinoa grains. Ultra-high-performance liquid chromatography electrospray ionization Orbitrap, along with high-resolution mass spectrometry (UHPLC/ESI-Orbitrap MS), were also used to identify the existence of polyphenols in cultivars. The antioxidant capacity was determined through DPPH, ABTS and FRAP. The spectrums exhibited significant variances on the transmittance bands associated with 2922 cm−1, 1016 cm−1 and 1633 cm−1. Moreover, the intensity variations on the peaks from the secondary protein structure were identified, mainly on the bands associated with β-Sheet-1 and -2, random coil α elice and β-turns-2 and -3. Changes found in the ratios 996 cm−1/1014 cm−1 and 1041 cm−1/1014 cm−1 were associated with the crystalline/amorphous affinity. Regarding the antioxidant capacity, great differences were identified (p < 0.001) mainly through FRAP methods, while the phenolic acids and flavonoids were determined by UHPLC/ESI-Orbitrap MS techniques. The presence of apigenin and pinocembrin on grains was reported for the first time. Titicaca and Nariño were the most phytochemically diverse quinoa seeds.

Premise Cañahua is a semi‐domesticated crop grown in high‐altitude regions of the Andes. It is an A‐genome diploid (2n = 2x = 18) relative of the allotetraploid (AABB) Chenopodium quinoa and shares many of its nutritional benefits. Cañahua seed contains a complete protein, a low glycemic index, and offers a wide variety of nutritionally important vitamins and minerals. Methods The reference assembly was developed using a combination of short‐ and long‐read sequencing techniques, including multiple rounds of Hi‐C–based proximity‐guided assembly. Results The final assembly of the ~363‐Mbp genome consists of 4633 scaffolds, with 96.6% of the assembly contained in nine scaffolds representing the nine haploid chromosomes of the species. Repetitive element analysis classified 52.3% of the assembly as repetitive, with the most common repeat identified as long terminal repeat retrotransposons. MAKER annotation of the final assembly yielded 22,832 putative gene models. Discussion When compared with quinoa, strong patterns of synteny support the hypothesis that cañahua is a close A‐genome diploid relative, and thus potentially a simplified model diploid species for genetic analysis and improvement of quinoa. Resequencing and phylogenetic analysis of a diversity panel of cañahua accessions suggests that coordinated efforts are needed to enhance genetic diversity conservation within ex situ germplasm collections.

Understanding the salt tolerance mechanism in obligate halophytes provides valuable information for conservation and re-habitation of saline areas. Here, we investigated the responses of three obligate halophytes namely Arthrocnemum macrostachyum, Sarcocornia fruticosa and Salicornia europaea to salt stress (0, 100, 200, 400 and 600 mM NaCl) during their vegetative growth with regard to biomass, ions contents (Na+, K+ and Ca2+), chlorophyll contents, carotenoids, phenolic compounds, flavonoids, and superoxide dismutase, peroxidase and esterase activities. S. europaea showed the lowest biomass, root K+ content, Chl a/b ratio, and carotenoids under salinity. This reduction of biomass is concomitant with the increase in proline contents and peroxidase activity. On the other hand, the promotion of growth under low salinity and maintenance under high salinity (200 and 400 Mm NaCl) in A. Macrostachyum and S. fruticosa are accompanied by an increase in Chl a/b ratio, carotenoids, phenolics contents, and esterase activity. Proline content was decreased under high salinity (400 and 600 mM NaCl) in both species compared to S. europaea, while peroxidase showed the lowest activity in both plants under all salt levels except under 600 mM NaCl in Arthrocnemum macrostachyum compared to S. europaea. These results suggest two differential strategies; (1) the salt tolerance is due to activation of antioxidant enzymes and biosynthesis of proline in S. europaea, (2) the salt tolerance in A. macrostachyum, S. fruticosa are due to rearrangement of chlorophyll ratio and biosynthesis of antioxidant compounds (carotenoids, phenolics and flavonoids) which their cost seem to need less energy than activation of antioxidant enzymes. The differential behavior in halophytes of the same habitat confirms that the tolerance mechanism in halophytes is species-specific which provides new insight about the restoration strategy of saline areas.

Amaranthus spinosus L. (Amaranthaceae s.l.), a species native to the Neotropics, has been found in four localities (Bizerta, Bir Bouregba, Hammamet, and Nabeul) of N. Tunisia. Our discovery represents the first record at national level, and the second one for N. Africa. Morphological characters and ecological data are given. Nomenclatural notes are provided for the name A. diacanthus, which was regarded by some authors as heterotypic synonym of A. spinosus. A neotype is designated in the present paper based on a specimen preserved at LSU. [ABSTRACT FROM AUTHOR]

Se designan lectotipos para 36 nombres específicos y 22 nombres infraespecíficos correspondientes a la familia Amaranthaceae de la Flora Argentina, los que pertenecen a los géneros actualmente aceptados Alternanthera, Blutaparon, Chamissoa, Froelichia, Hebanthe y Pfaffia. Del total, 20 corresponden a lectotipificaciones de segundo paso.

Background: The Amaranthaceae family has a cosmopolitan geographic distribution, with 174 genera and about 2050 to 2500 species is the most diverse family within the order Caryophyllales, and includes about 50 % of species of eudicotiledóneas with C4 photosynthesis. Its species live mainly in arid environments, saline habitats and areas of disturbance, many are common weeds. Questions: How many species of Amaranthaceae family are present in the state of Aguascalientes and where distributed? Species studied: Species of Amaranthaceae family present in the state of Aguascalientes. Study site and dates: Aguascalientes, Mexico. From September 2012 to August 2014. Methodology: Specimens were collected in the field and were identified using especialized literature. Material was revised in various national herbaria. distribution maps were drawn. Results: In the study area this family is represented by 11 genera and 29 species, eight of these are new records for the state of Aguascalientes and one for Mexico, eighteen are reported as weeds and six are introduced species and naturalized in the state. The genera with more species are Amaranthus and Iresine, with five and six species respectively. Conclusions: This work expands our understanding of plant resources present in Aguascalientes, as well as the distribution and wealth of the Amaranthaceae family in Mexico.