Pollinator plant

brown-eyed Susan

Rudbeckia triloba

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Common names

12 names · 9 languages
EnglishYour language
+1 more nameShow fewer names
Other languages (8)
French
Chinese (Simplified)
  • 三裂叶金光菊[4]
Finnish
  • silmäpäivänhattu[4]
German
  • Dreilappiger Sonnenhut[3]
Japanese
  • ミツバオオハンゴンソウ[4]
Polish
  • rudbekia trójklapowa[4]
Russian
  • Рудбекия трёхлопастная[4]
Ukrainian
  • Рудбекія трилопатева[4]
Sources & name notes (4)

Names recorded in our plant catalogue and botanical sources, grouped by language. Usage can vary by region.

Catalogue language labels are reviewed separately from botanical source records.

Numbered references identify names recorded by an external source. Other names are from our plant catalogue.

[1] Rudbeckia triloba — Plant Toolbox common names ↗

NC State Extension Gardener Plant Toolbox; English common names in a United States horticultural reference.

Source records
  • Brown-Eyed Susan — ul#common_names > li:nth-of-type(1); heading: Common Name(s):; Rudbeckia triloba.
  • Thin Leaved Coneflower — ul#common_names > li:nth-of-type(2); heading: Common Name(s):; Rudbeckia triloba.
  • Three-lobed Coneflower — ul#common_names > li:nth-of-type(3); heading: Common Name(s):; Rudbeckia triloba.
[2] Rudbeckia triloba — iNaturalist taxon names ↗

Community-curated iNaturalist taxonomy. This is a common-name attestation, not an independent botanical determination.

Source records
  • brown-eyed Susan — results[0].names[2]; taxon id 136376; Rudbeckia triloba.
  • thin-leaved coneflower — results[0].names[3]; taxon id 136376; Rudbeckia triloba.
  • Three-lobed Coneflower — results[0].names[9]; taxon id 136376; Rudbeckia triloba.
  • Rudbeckie trilobée — results[0].names[6]; taxon id 136376; Rudbeckia triloba.
[3] Catalogue of Life 2026-08-20 — Rudbeckia triloba ↗

Common names from World Plants, version 26.05, reproduced in Catalogue of Life 2026-08-20. License: CC BY.

Source records
  • Brown-eyed Susan (EN) — VernacularName.tsv, line 140207; taxon 4TMCT.
  • Dreilappiger Sonnenhut (DE) — VernacularName.tsv, line 140208; taxon 4TMCT.
[4] Rudbeckia triloba — iNaturalist taxon names ↗

Community-curated iNaturalist taxonomy; common-name attestation, not an independent botanical determination.

Source records
  • brown-eyed Susan — results[9].names[2]; taxon id 136376; Rudbeckia triloba.
  • thin-leaved coneflower — results[9].names[3]; taxon id 136376; Rudbeckia triloba.
  • Three-lobed Coneflower — results[9].names[9]; taxon id 136376; Rudbeckia triloba.
  • Rudbeckie trilobée — results[9].names[6]; taxon id 136376; Rudbeckia triloba.
  • Рудбекия трёхлопастная — results[9].names[4]; taxon id 136376; Rudbeckia triloba.
  • ミツバオオハンゴンソウ — results[9].names[5]; taxon id 136376; Rudbeckia triloba.
  • silmäpäivänhattu — results[9].names[7]; taxon id 136376; Rudbeckia triloba.
  • 三裂叶金光菊 — results[9].names[8]; taxon id 136376; Rudbeckia triloba.
  • rudbekia trójklapowa — results[9].names[10]; taxon id 136376; Rudbeckia triloba.
  • Рудбекія трилопатева — results[9].names[11]; taxon id 136376; Rudbeckia triloba.
Plant references

Source-backed information

Published observations for this plant. Each reference supports the information beside it.

Taxonomy
Rudbeckia triloba is an accepted species in Catalogue of Life.

Taxonomic treatment in the August 2026 release; the catalogue record name is preserved.

Sources [1]
Botanical family
Asteraceae

Family in the cited taxonomic treatment.

Sources [1]
Mature height
0.91–1.52 m

NC State Extension profile. Converted from the source range in feet and inches; mature size varies with growing conditions.

Sources [2]
Mature spread
0.3–0.46 m

NC State Extension profile. Converted from the source range in feet and inches; mature size varies with growing conditions.

Sources [2]
Plant habit
Clumping; Erect

NC State Extension profile.

Sources [2]
Life cycle
Biennial; Perennial

NC State Extension profile.

Sources [2]
Foliage
Deciduous

NC State Extension profile.

Sources [2]
Light
Full sun (6 or more hours of direct sunlight a day); Partial Shade (Direct sunlight only part of the day, 2-6 hours)

NC State Extension profile.

Sources [2]
Moisture and drainage
Good Drainage; Moist; Occasionally Dry

NC State Extension profile.

Sources [2]
Soil texture
Clay; High Organic Matter; Loam (Silt)

NC State Extension profile.

Sources [2]
Flowering season
Autumn; Summer

NC State Extension profile. Seasons reflect the source region and do not verify the catalogue’s exact flowering months.

Sources [2]
Reported wildlife attraction
Listed as attracting: butterflies, pollinators.

NC State Extension profile. Broad wildlife categories; this does not establish flower visits by a named bee species or quantify nectar and pollen.

Sources [2]
Pollinator guidance
RHS includes Rudbeckia species in its Plants for Pollinators guidance.

Genus-level guidance, not a rating for this individual species or a particular cultivar. RHS planting guidance. Choose accessible flowers with pollen and nectar; reduced-resource and double-flowered forms may be unsuitable.

Sources [3] [4]
Native range
E. Canada to U.S.A.

Explicit native locality records in Kew WCVP v16; introduced and doubtful distributions excluded. Continent conversion follows the documented geographic mapping.

Sources [5]
Catalogue ratings

Who this plant supports

Honey bees

Low suitability
Nectar value Low
Pollen value Unknown
Plant profile

About this plant

brown-eyed Susan (Rudbeckia triloba) is a herbaceous plant. It flowers from July to September.

Sources and references

References for the information marked with source numbers on this page.

Sources checked
  1. Catalogue of Life Rudbeckia triloba — Catalogue of Life COL26.8

    COL26.8 (2026-08-20). Contributing checklist: Synonymic Checklists of the Vascular Plants of the World. This is taxonomic evidence, not an independent ecological study.

    Supports: TaxonomyBotanical family
    Relevant sections
    • Taxonomy: NameUsage.tsv line 1160994; ID 4TMCT; rank species; status accepted
    • Botanical family: NameUsage.tsv line 1160994; ID 4TMCT; rank species; status accepted

    Source checked on .

    Source data licence: CC BY 4.0.

  2. NC State Extension Rudbeckia triloba — Plant Toolbox

    NC State Extension Gardener Plant Toolbox. Growing conditions and seasons reflect its United States horticultural context.

    Supports: Mature heightMature spreadPlant habitLife cycleFoliageLightMoisture and drainageSoil textureFlowering seasonReported wildlife attraction
    Relevant sections
    • Mature height: Dimensions / Height
    • Mature spread: Dimensions / Width
    • Plant habit: Habit/Form
    • Life cycle: Life Cycle
    • Foliage: Woody Plant Leaf Characteristics
    • Light: Light
    • Moisture and drainage: Soil Drainage
    • Soil texture: Soil Texture
    • Flowering season: Flower Bloom Time
    • Reported wildlife attraction: Attracts

    Source checked on .

  3. Royal Horticultural Society RHS Plants for Pollinators — Plants Of The World

    RHS planting guidance; applicable flower-form restrictions are retained. General recommendations do not measure local nectar or pollen production.

    Supports: Pollinator guidance
    Relevant sections
    • Pollinator guidance: Page 2, column 2, entry Rudbeckia species (top 292 pt)

    Source checked on .

  4. Royal Horticultural Society RHS Plants for Pollinators — Garden Plants

    RHS planting guidance; applicable flower-form restrictions are retained. General recommendations do not measure local nectar or pollen production.

    Supports: Pollinator guidance
    Relevant sections
    • Pollinator guidance: Page 4, column 2, entry Rudbeckia species (top 637 pt)

    Source checked on .

  5. Royal Botanic Gardens, Kew Rudbeckia triloba — Kew WCVP native distribution

    Native distribution and taxonomic treatment from the official WCVP v16 export (4 June 2026). The link opens the corresponding POWO taxon. Source rows are retained in the native-range audit archive.

    Supports: Native range
    Relevant sections
    • Native range: WCVP v16; wcvp_names.csv lines 539972; wcvp_distribution.csv native locality lines 1693885, 1693886, 1693887, 1693888, 1693889, 1693890, 1693891, 1693892, 1693893, 1693894, 1693895, 1693896, 1693897, 1693898, 1693899, 1693900, 1693901, 1693902, 1693903, 1693904, 1693905, 1693906, 1693907, 1693908, 1693909, 1693910, 1693911, 1693912, 1693913, 1693914, 1693915, 1693916, 1693917, 1693918, 1693919

    Source checked on .

    Source data licence: CC BY 3.0.