{ "$schema": "https://botanai.app/schema/species-v1.json", "schema_version": 1, "url": "https://botanai.app/plants/crataegus-macrosperma/", "last_modified": "2025-12-15", "id": { "slug": "crataegus-macrosperma", "wfo": "wfo-0001010479", "inat_taxon_id": 161041 }, "name": { "scientific": "Crataegus macrosperma", "authorship": "Ashe", "genus": "Crataegus", "epithet": "macrosperma", "family": "Rosaceae", "rank": "species", "taxonomic_status": "accepted", "accepted_according_to": "World Flora Online Plant List, 2026-06", "is_homonym": false, "published_in": "J. Elisha Mitchell Sci. Soc. 16(2): 73 (1900)", "protologue_url": "https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:68579-2", "common": { "preferred": "bigfruit hawthorn", "english": [ "bigfruit hawthorn" ], "source": "wikidata" }, "synonyms": [ { "name": "Crataegus acutiloba", "authorship": "Sarg." }, { "name": "Crataegus apiomorpha var. cyanophylla", "authorship": "(Sarg.) Kruschke" }, { "name": "Crataegus atropurpurea", "authorship": "Ashe" }, { "name": "Crataegus benigna", "authorship": "Sarg." }, { "name": "Crataegus brumalis", "authorship": "Ashe" }, { "name": "Crataegus chadsfordiana", "authorship": "Sarg." }, { "name": "Crataegus cordifolia var. macrosperma", "authorship": "(Ashe) Farw." }, { "name": "Crataegus cordifolia var. matura", "authorship": "(Sarg.) Farw." }, { "name": "Crataegus cordifolia var. pastorum", "authorship": "(Sarg.) Farw." }, { "name": "Crataegus cyanophylla", "authorship": "Sarg." }, { "name": "Crataegus demissa", "authorship": "Sarg." }, { "name": "Crataegus eganii", "authorship": "Ashe" }, { "name": "Crataegus glaucophylla", "authorship": "Sarg." }, { "name": "Crataegus heidelbergensis", "authorship": "Sarg." }, { "name": "Crataegus iracunda var. brumalis", "authorship": "(Ashe) Kruschke" }, { "name": "Crataegus macrosperma var. acutiloba", "authorship": "(Sarg.) Eggl." }, { "name": "Crataegus macrosperma var. demissa", "authorship": "(Sarg.) Eggl." }, { "name": "Crataegus macrosperma var. eganii", "authorship": "(Ashe) Kruschke" }, { "name": "Crataegus macrosperma var. matura", "authorship": "(Sarg.) Eggl." }, { "name": "Crataegus macrosperma var. pastorum", "authorship": "(Sarg.) Eggl." }, { "name": "Crataegus macrosperma var. pentandra", "authorship": "(Sarg.) Eggl." }, { "name": "Crataegus macrosperma var. roanensis", "authorship": "(Ashe) E.J.Palmer" }, { "name": "Crataegus matura", "authorship": "Sarg." }, { "name": "Crataegus media", "authorship": "Sarg." }, { "name": "Crataegus otiosa", "authorship": "Ashe" }, { "name": "Crataegus pastorum", "authorship": "Sarg." }, { "name": "Crataegus pentandra", "authorship": "Sarg." }, { "name": "Crataegus randiana", "authorship": "Sarg." }, { "name": "Crataegus roanensis", "authorship": "Ashe" }, { "name": "Crataegus roanensis var. heidelbergensis", "authorship": "(Sarg.) Kruschke" }, { "name": "Crataegus sextilis", "authorship": "Sarg." }, { "name": "Crataegus tenella", "authorship": "Ashe" }, { "name": "Crataegus tenuifolia", "authorship": "Britton" }, { "name": "Crataegus velata", "authorship": "Ashe" }, { "name": "Oxyacantha macrosperma", "authorship": "(Ashe) Nieuwl." } ], "wikipedia": "https://en.wikipedia.org/wiki/Crataegus_macrosperma" }, "photographs": { "shown": 8, "usable_found": 104, "licences": [ "CC0", "CC-BY" ], "noncommercial_excluded": true, "items": [ { "photo_id": 130845981, "license": "CC-BY", "license_name": "CC BY 4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "derivatives_restricted": false, "creator": "Roger Rittmaster", "creator_url": "https://www.inaturalist.org/people/rogerritt", "source_url": "https://www.inaturalist.org/observations/56c06a6c-c129-4b2a-a769-5ba1dc48140d", "observed_on": "2021-05-22", "lat": 44.232, "lon": -69.091, "original": { "width": 1024, "height": 768 }, "widths": [ 400, 800 ], 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Brunswick", "continent": "NORTHERN AMERICA", "region": "Eastern Canada" }, { "code": "NWH", "name": "New Hampshire", "continent": "NORTHERN AMERICA", "region": "Northeastern U.S.A." }, { "code": "NWJ", "name": "New Jersey", "continent": "NORTHERN AMERICA", "region": "Northeastern U.S.A." }, { "code": "NWY", "name": "New York", "continent": "NORTHERN AMERICA", "region": "Northeastern U.S.A." }, { "code": "NFL", "name": "Newfoundland", "continent": "NORTHERN AMERICA", "region": "Eastern Canada" }, { "code": "NCA", "name": "North Carolina", "continent": "NORTHERN AMERICA", "region": "Southeastern U.S.A." }, { "code": "NSC", "name": "Nova Scotia", "continent": "NORTHERN AMERICA", "region": "Eastern Canada" }, { "code": "OHI", "name": "Ohio", "continent": "NORTHERN AMERICA", "region": "Northeastern U.S.A." }, { "code": "ONT", "name": "Ontario", "continent": "NORTHERN AMERICA", "region": "Eastern Canada" }, { "code": "PEN", "name": "Pennsylvania", "continent": "NORTHERN AMERICA", "region": "Northeastern U.S.A." }, { "code": "PEI", "name": "Prince Edward I.", "continent": "NORTHERN AMERICA", "region": "Eastern Canada" }, { "code": "QUE", "name": "Québec", "continent": "NORTHERN AMERICA", "region": "Eastern Canada" }, { "code": "RHO", "name": "Rhode I.", "continent": "NORTHERN AMERICA", "region": "Northeastern U.S.A." }, { "code": "TEN", "name": "Tennessee", "continent": "NORTHERN AMERICA", "region": "Southeastern U.S.A." }, { "code": "VER", "name": "Vermont", "continent": "NORTHERN AMERICA", "region": "Northeastern U.S.A." }, { "code": "VRG", "name": "Virginia", "continent": "NORTHERN AMERICA", "region": "Southeastern U.S.A." }, { "code": "WVA", "name": "West Virginia", "continent": "NORTHERN AMERICA", "region": "Northeastern U.S.A." }, { "code": "WIS", "name": "Wisconsin", "continent": "NORTHERN AMERICA", "region": "North-Central U.S.A." } ] }, "phenology": { "n": 82, "n_annotated": 151, "sufficient": true, "by_month": [ 0, 0, 0, 24, 54, 4, 0, 0, 0, 0, 0, 0 ], "annotated_by_month": [ 0, 1, 0, 35, 69, 13, 7, 8, 12, 5, 1, 0 ], "share": [ null, null, null, 0.6857, 0.7826, 0.3077, 0, 0, 0, 0, null, null ], "ci": [ null, null, null, [ 0.5202, 0.8145 ], [ 0.6718, 0.8636 ], [ 0.1268, 0.5763 ], [ 0, 0.3543 ], [ 0, 0.3244 ], [ 0, 0.2425 ], [ 0, 0.4345 ], null, null ], "peak_month": 5, "peak_basis": "share", "min_month_n": 5, "fruiting": { "n": 46, "by_month": [ 0, 1, 0, 1, 5, 9, 7, 8, 10, 4, 1, 0 ], "share": [ null, null, null, 0.0286, 0.0725, 0.6923, 1, 1, 0.8333, 0.8, null, null ], "ci": [ null, null, null, [ 0.0051, 0.1453 ], [ 0.0313, 0.1587 ], [ 0.4237, 0.8732 ], [ 0.6457, 1 ], [ 0.6756, 1 ], [ 0.552, 0.953 ], [ 0.3755, 0.9638 ], null, null ], "peak_month": 7 }, "doi": "10.15468/dl.cgje2x", "source": "GBIF SQL download of iNaturalist Research-grade Observations", "quality_grade": "research (guaranteed upstream by iNaturalist at export)", "fields": { "by_month": "observations found IN FLOWER, by month (Jan..Dec)", "annotated_by_month": "observations in which a human recorded the reproductive state at all, by month. This is the denominator, and it includes the records that said \"no flowers or fruits\".", "share": "by_month / annotated_by_month. null where too few plants were examined to state a proportion.", "ci": "95% Wilson score interval on share.", "peak_month": "the month with the highest SHARE, not the highest count." } }, "traits": { "lifeform": "tree", "climate": "temperate" }, "climate_envelope": { "mean_annual_temp_c": { "p5": 4.9, "median": 8.2, "p95": 13.8 }, "temp_seasonality": { "p5": 687.8, "median": 909.8, "p95": 1081.3 }, "max_temp_warmest_month_c": { "p5": 21.3, "median": 25.5, "p95": 28.6 }, "min_temp_coldest_month_c": { "p5": -16.1, "median": -8.3, "p95": -1 }, "annual_precip_mm": { "p5": 923.9, "median": 1160.1, "p95": 1721.3 }, "precip_seasonality": { "p5": 10, "median": 15.7, "p95": 23.4 }, "precip_driest_quarter_mm": { "p5": 169.1, "median": 234.3, "p95": 335.8 }, "n": 193, "units": { "mean_annual_temp_c": "degrees Celsius", "min_temp_coldest_month_c": "degrees Celsius (mean daily MINIMUM of the coldest month)", "max_temp_warmest_month_c": "degrees Celsius (mean daily MAXIMUM of the warmest month)", "annual_precip_mm": "millimetres per year", "precip_driest_quarter_mm": "millimetres in the driest quarter" }, "source": "CHELSA V2.1 climatologies 1981-2010, 30 arcsec", "citation": "Karger, D.N. et al. (2017) Climatologies at high resolution for the earth's land surface areas. Scientific Data 4, 170122.", "occurrences": "iNaturalist Research-grade Observations", "occurrences_doi": "10.15468/dl.cgje2x", "method": "Climate sampled at every georeferenced research-grade observation of the species. Reported as the 5th to 95th percentile across 193 of them. Species with fewer than 30 georeferenced observations get no envelope.", "is_hardiness_zone": false, "hardiness_zone_note": "min_temp_coldest_month_c is NOT a USDA hardiness zone. A USDA zone is the average annual EXTREME minimum temperature; this is the mean daily minimum of the coldest month, which is typically about 16 C warmer. Do not present one as the other." }, "identification": { "on_device_model": { "model": "Google AIY plants V1 (TFLite, 2,102 classes)", "identifies_this_species": false }, "in_accuracy_benchmark": false, "benchmark_url": "https://botanai.app/accuracy/", "confused_with": [] }, "sources": [ { "name": "World Flora Online Plant List", "note": "accepted name, authority, classification", "license": "CC0", "url": "https://www.worldfloraonline.org/", "retrieved": "2026-07-12" }, { "name": "iNaturalist", "note": "photographs and flowering annotations, CC0 / CC BY / CC BY-SA only", "license": "per photograph", "url": "https://www.inaturalist.org/", "retrieved": "2026-06-27" }, { "name": "Wikidata", "note": "common name (P1843), joined on the World Flora Online identifier (P7715)", "license": "CC0", "url": "https://www.wikidata.org/", "retrieved": "2026-07-13" }, { "name": "Kew, World Checklist of Vascular Plants (WCVP v16)", "note": "native distribution by TDWG level-3 botanical country, and life form", "license": "CC BY 3.0", "url": "https://doi.org/10.15468/6h8ucr", "retrieved": "2026-06-04" } ], "gaps": [ { "field": "care", "status": "not_published", "reason": "Not published anywhere on this site. Every care claim we could make cheaply would be an unsourced enum, which is what the previous version of this site did and why it was deleted." }, { "field": "toxicity", "status": "not_published", "reason": "Not published. The widely copied list is a copyrighted compilation restricted to noncommercial use, and we will not scrape it. A sourced toxicity dataset is being built from primary literature and is not ready." }, { "field": "botanical_review", "status": "not_sourced", "reason": "No page on this site has been reviewed by a named botanist. The determination label says so, on every page." }, { "field": "hardiness_zone", "status": "not_published", "reason": "Not published for any species. A USDA hardiness zone is the average annual EXTREME minimum temperature, and we hold the mean daily minimum of the coldest month, which is a different quantity and typically about 16 C warmer. Presenting one as the other would place a plant several zones too warm, so we do not publish a zone at all." } ], "license": { "data": "CC BY 4.0", "attribution": "BotanAI, https://botanai.app/plants/crataegus-macrosperma/", "note": "This document is licensed CC BY 4.0. The PHOTOGRAPHS it links are licensed individually and separately: each carries its own license and license_url, and those terms govern. Underlying taxonomy is CC0 (World Flora Online); native range is CC BY 3.0 (Kew)." } }