Results 31 to 40 of about 2,632 (177)

Catálogo sistemático dos polens das plantas arbóreas do Brasil meridional, XXIV: Urticaceae Catalogue of Southern Brazilian pollen grains: XXIV - Urticaceae

open access: yesMemorias do Instituto Oswaldo Cruz, 1976
O estudo da morfologia polínica de alguns gêneros permitiu definir tipos polínicos nas Urticaceae. Assim, em Urera e Urtica ocorrem grãos pantoporados, em Boehmeria 3-porados, em Phenax e pilea 2-porados.
Ortrud Monika Barth
doaj   +1 more source

Climate‐driven niche filtering limits post‐dispersal establishment and genomic introgression in a riverine shrub

open access: yesJournal of Integrative Plant Biology, EarlyView.
Integrated biogeographic analysis and macroecological insights reveal that habitat differences drive genetic differentiation Debregeasia orientalis C. J. Chen, a dominant riparian shrub distributed across multiple biodiversity hotspots, and different lineages vary greatly in adaptability to future climate.
Zeng‐Yuan Wu   +12 more
wiley   +1 more source

Morfologia do pólen anemófilo e alergisante no Brasil: Casuarinaceae, Salicaceae, Moraceae, Ulmaceae e Urticaceae (I) Morphology of the anemophilous and allergenic pollen grains in Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 1975
Foi iniciado um catálogo da morfologia policlínica das epécies anemófilas e das causadoras de alergias, ocorrentes no Brasil. Nesta primeira parte foram examinados os grãos de pólen das Angiospermas consideradas menos evoluídas, correspondendo às ...
Ortrud Monika Barth   +2 more
doaj   +1 more source

Cannabaceae, moraceae and urticaceae [PDF]

open access: yesReview of Palaeobotany and Palynology, 1984
Although this is not the procedure followed in most of the contributions to the Northwest European Pollen Flora, this part combines three families. The reason for this is the close resemblance of the pollen grains in these three families that often makes identification of the pollen a problem.
Punt, W., Malotaux, M.
openaire   +2 more sources

A comprehensive review on biochemical composition of Urtica dioica L. and its applications to improve health benefits

open access: yesFood Materials Research
Urtica dioica L. (stinging nettle) is a perennial flowering plant from the Urticaceae family, widely recognized for its medicinal properties. The phytochemical studies of Urtica have revealed the presence of phenols, flavonoids, alkaloids, terpenoids ...
Monika Rathour   +4 more
doaj   +1 more source

Two newly recorded species of Urticaceae among the flora of Vietnam used as green foods for H’mông beef cattle

open access: yesVietnam Journal of Science, Technology and Engineering, 2022
Oreocnide kwangsiensis Hand.-Mazz. and Boehmeria japonica (L. f.) Miq. (Urticaceae) are newly reported among the flora of Vietnam that are used as green foods for beef cattle by local H’Mong people in northern Vietnam in the winter-spring season.
Hung Duy Nguyen   +3 more
doaj   +1 more source

Disturbance‐Associated Plant Communities in Africa's Largest Alpine Ecosystem: Evidence for Long‐Term Anthropogenic Influence

open access: yesApplied Vegetation Science, Volume 29, Issue 4, October/December 2026.
This study provides the first integrated evidence of long‐term human impacts in Ethiopia's Bale Mountains, combining modern vegetation transects with sedimentary steroid and bile acid biomarkers. We identified a sharp 200 m settlement edge and reveal sustained anthropogenic influence from the late Pleistocene, with pastoralism intensifying around 6.5 ...
Mekbib Fekadu   +12 more
wiley   +1 more source

Análisis de los silicofitolitos presentes en especies de las familias Cannabaceae, Moraceae y Urticaceae del SE bonaerense y estudio comparativo de los cistolitos

open access: yesBoletín de la Sociedad Argentina de Botánica, 2018
Numerosas familias producen silicofitolitos en sus tejidos, los cuales constituyen una herramienta de importancia taxonómica y paleobotánica. Una de las morfologías producidas en dicotiledóneas son los cistolitos, definidos como concreciones de carbonato
Mariana Fernández Honaine   +2 more
doaj   +1 more source

Diel net CO2 exchange of carnivorous Pinguicula is consistent with low‐level CAM photosynthesis

open access: yesPlant Biology, Volume 28, Issue 6, Page 1813-1819, October 2026.
In carnivorous butterworts (Pinguicula), CO2 uptake occurs primarily in the light via C3 photosynthesis, yet low‐level CAM photosynthesis, including net CO2 dark fixation, significantly improves the carbon balance of plants, especially under water‐deficit conditions.
K. Winter, M. Garcia, A. Virgo
wiley   +1 more source

Flora das cangas da Serra dos Carajás, Pará, Brasil: Urticaceae

open access: yesRodriguésia
Resumo Este estudo engloba as espécies de Urticaceae registradas nas vegetações de cangas da Serra dos Carajás, Pará, trazendo descrições detalhadas, ilustrações e comentários morfológicos das espécies.
André Luiz Gaglioti   +2 more
doaj   +1 more source

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