Hidden diversity uncovered: molecular screening reveals cryptic Batrachium taxa in Pannonia, with their closest relatives not in central Europe, but as far as the western Mediterranean area. @ibotcz.bsky.social @czechacademy.bsky.social

New distribution maps for 87 vascular plant taxa reveal a flora under pressure: several species now survive at a single Czech site and four are nationally extinct. In contrast, taxonomic revision reveals 22 distinct escaped Cotoneaster species. preslia.cz/doi/preslia.2026.001.html

Warning from Nature: EU and USA weaken basic scientific research, narrowing support to projects with rapid political or economic returns. This may bring short-term gains but risks future breakthroughs. Meanwhile, China is significantly increasing investment in basic research. doi.org/10.1038/d415...

We continue uncovering hidden Batrachium diversity with the discovery of an extremely rare diploid hybrid combination, newly found in the Czech Republic. @ibotcz.bsky.social @czechacademy.bsky.social

Plants spreading fast at home often become global invaders 🌱✈️ A new Nature Comms study shows that species expanding in Europe are most likely to naturalize abroad. Watching native trends may be the key to predicting invasions: www.nature.com/articles/s41...

Spatially uneven sampling of species occurrences can mislead biodiversity research. A new study of Czech flora by Klímová et al. reveals how different methods mitigate the distortions in the patterns of species richness. preslia.cz/doi/preslia.2025.541.html

🌸 This year, we finally (!) have a good yield of apricots (Prunus armeniaca) here in South Moravia, after three years without apricots across the region. Apricots are thermophilous trees, thriving in Czechia’s warmest areas. Paradoxically, though, they are suffering from global warming.

🧵1/5 Botanical visit to the Krkonoše Mountains, the highest mountain range in Czechia. Peat bogs with Pedicularis sudetica (type locality) and Andromeda polifolia.

🧵1/3 Another field trip in search of interesting plants, this time to fishponds and other wetlands in the Odra river basin, north-eastern Czechia. Utricularia australis, Trapa natans and Salvinia natans.

Another paper from our Batrachium team: subtle yet evolutionarily intriguing aquatic plants have arisen in the beautiful postglacial landscapes of the Alps.

🧵1/4 An abandoned limestone quarry in the Český kras karst area, Czech Republic. Vicia tenuifolia, Sedum album.

Celebrating #TaxonomyRecognitionDay with blooming plants from Průhonice Park and Castle, where @ibotcz.bsky.social‬ is located. We live and work for the understanding of nature and biodiversity. #nameittosaveit ‪@czechacademy.bsky.social‬ @tettris.eu‬

The head of our Průhonice Botanical Garden and president of the Union of Botanical Gardens Pavel Sekerka explains why taxonomy is important for botanical gardens. @tettris.eu #nameittosaveit

Our colleagues are joining the @tettris.eu, which links institutions across the continent in an effort to raise the profile and promote taxonomy not only in science but also in practical conservation. Lichenologist Jiří Malíček explains why taxonomy is needed ⬇️ #nameittosaveit

Proper taxonomic classification is crucial for many practical fields. It allows, for example, to distinguish between useful and harmful species, but also between edible and poisonous fungi. Don't forget to take photos of your favorite plants and share them with #nameittosaveit! @tettris.eu

Thousands of species of organisms remain undiscovered. Many of them are disappearing from the wild before we can even get to know them. Taxonomy Recognition Day (23rd May) will remind us, why is taxonomy important. What is taxonomy and why is it important? Follow us @tettris.eu #NameItToSaveIt #avcr

Have you ever wondered how complex the pathways of evolution truly are? In aquatic plants, they are far more intricate than we imagined. The deeper we explore, the more tangled the evolutionary network becomes. #evolution #speciation #hybridization #polyploidy rdcu.be/ei5UQ

Česká botanická společnost otevřela profil na Bluesky a přestala zveřejňovat informace na síti X. The Czech Botanical Society has opened a profile on Bluesky and discontinued sharing information on X. bsky.app/profile/bota...

Decline of the most beautiful Czech orchid, and spatial and temporal dynamics of 102 other species in another instalment of the series on the distribution of plants in the Czech Republic. preslia.cz/doi/preslia.2025.175.html

Winter mood

Vilmo! Kde jsi koupila tenhle kalendář?!!

Narrow-leaved ragwort (Senecio inaequidens) is the plant of the year 2025 in the Czech Republic. In previous years, the Czech Botanical Society awarded this title to endangered species, but this year, we chose an alien species whose invasion is taking place at breakneck speed right before our eyes.

Good morning from the Průhonice Park, Czech Republic. @ibotcz.bsky.social‬ 1/3

Expansive plants are native but behave similarly to alien invasive plants and can also have negative impacts. The first catalogue of the expansive flora of the Czech Republic includes 126 taxa, with the regions and habitats, where they spread. preslia.cz/doi/preslia.2024.299.html

Preslia, a peer-reviewed scientific journal of the Czech Botanical Society, publishes research papers on plant systematics, morphology, phytogeography, ecology, vegetation science and Quaternary palaeobotany, with a geographical focus on central Europe.🌿🍁🌳 We start on Bluesky! www.preslia.cz

New issue (96/4) is out! - Catalogue of expansive plants in the Czech Republic (Axmanová et al.) - Urtica kioviensis threatened by hybridization (Urfus et al.) - Environmental DNA data and taxonomic surveys of lichens (Vondrák et al.) See more at www.preslia.cz #Botany #PlantScience #Evolution

Looking back at the May botanical expedition to the Balkan Peninsula, mainly to the Dinaric Alps in Croatia and Bosnia and Herzegovina. 1/5