Add German plant traits from FloraWeb

Joins traits from FloraWeb (Bundesamt fuer Naturschutz) to a taxify() result by looking up accepted_name. FloraWeb is the live national portal carrying the BiolFlor trait data (Klotz, Kuehn & Durka 2002) together with Rothmaler morphology and Ellenberg indicator values. This enrichment covers the full per-species trait profile scraped from the four FloraWeb trait pages: morphology, reproductive biology, the nine Ellenberg indicator values, ploidy and chromosome number, and chorological distribution. Every column carries a _de suffix to mark the German-flora calibration and to avoid collisions when chained with other plant-trait enrichments (e.g. add_ecoflora() for Britain, add_baseflor() for France).

Usage

add_floraweb(x, verbose = TRUE)

Arguments

x

A data.frame returned by taxify().

verbose

Logical. Default TRUE.

Value

The same data.frame with German trait columns (all suffixed _de), grouped as:

Morphology

height_de, life_form_de, leaf_shape_de, leaf_anatomy_de, leaf_persistence_de, storage_organs_de, flowering_months_de, flowering_months_biolflor_de, flowering_phase_de, phenological_season_de, description_de.

Reproductive biology

pollination_vector_de, pollinator_de, pollinator_reward_de, flower_type_de, flower_class_de, dispersal_type_de, diaspore_type_de, germinule_type_de, reproduction_type_de, vegetative_spread_de, fertilization_type_de, apomixis_de, dicliny_de, dichogamy_de, self_incompatibility_de, si_mechanism_de, ploidy_de, chromosome_number_de, chromosome_freq_de, chromosomes_de.

Ecology

the nine Ellenberg indicator values ell_light_de, ell_temperature_de, ell_continentality_de, ell_moisture_de, ell_moisture_variability_de, ell_reaction_de, ell_nitrogen_de, ell_salt_de, heavy_metal_resistance_de, plus strategy_type_de (Grime CSR), habitat_site_de, formation_de, plant_community_de, biotope_type_de, forest_binding_de, hemeroby_de, urbanity_de.

Distribution

floristic_zones_de, areal_formula_de, areal_type_de, oceanity_de, range_centre_de, world_range_size_de, world_range_frequency_de, world_range_position_de, world_range_hazard_de, germany_range_share_de, germany_responsibility_de.

Categorical traits with several applicable values are joined with "; ". Trait values are German (as published by FloraWeb / BiolFlor).

Details

Source: FloraWeb (https://www.floraweb.de/), Bundesamt fuer Naturschutz, Bonn. FloraWeb has no bulk export or API; the bundled dataset was scraped per species (accessed 2026-06-24) and that access date is the dataset version. The trait data largely derive from BiolFlor, which per the BioFresh metadata statement is publicly available and may be used without restrictions provided it is acknowledged and cited correctly. The .vtr is downloaded from the taxify release on first use and cached.

For British-flora traits see add_ecoflora(); for French-flora traits see add_baseflor(); for European-calibration indicator values see add_eive().

References

Klotz S, Kuehn I, Durka W (2002) BIOLFLOR - Eine Datenbank zu biologisch-oekologischen Merkmalen der Gefaesspflanzen in Deutschland. Schriftenreihe fuer Vegetationskunde 38. Bundesamt fuer Naturschutz, Bonn.

Examples

# Runs offline against the bundled example database.
old <- options(taxify.data_dir = taxify_example_data())

taxify("Bellis perennis") |>
  add_floraweb()

options(old)