Asteraceae
Rudbeckia

Rudbeckia laciniata L.

First published in Sp. Pl.: 906 (1753)
This species is accepted
The native range of this species is Central & E. Canada to Central & E. U.S.A. It is a perennial and grows primarily in the temperate biome. It is used as a poison and a medicine, has environmental uses and for food.

Descriptions

Distribution
Biogeografic region: Andean. Elevation range: 1300–1300 m a.s.l. Naturalised in Colombia. Colombian departments: Cundinamarca.
Habit
Herb.
[UPFC]

Ghazanfar, S. A., Edmondson, J. R. & Hind, D. J. N. (Eds). (2019). Flora of Iraq, Volume 6: Compositae.Kew Publishing

Morphology General Habit
Tall perennial up to 3 m; stem glabrous, striate, with long ascending branches above
Morphology Leaves
Basal leaves usually pinnatisect with 2–3 pairs of dentate segments, at least the lower pair bi- to trifid or bi- to trisect; cauline leaves becoming trifid or trisect or the upper simple, all dentate
Morphology Reproductive morphology Inflorescences Capitulum
Capitula few to numerous, on long slender peduncles Phyllaries lax, spreading or reflexed, glabrous or sparsely strigose, green
Ray
Rays yellow, 2–5 cm
Disc
Disc 1.25–2.25 cm in diameter; disc florets yellow or greyish-yellow; style-appendages short and blunt; Achenes tetragonous; pappus a short, toothed corona.
Distribution
A native of N America.
[FIQ]

Morphology Reproductive morphology Seeds Protein Content

37.80% Entire seed/nut. Moisture content not stated (Earle & Jones, 1962)

[SID]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Adventicia en Colombia; Alt. 1300 m.; Andes.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

Uses

Use Environmental
Environmental uses.
Use Food
Used for food.
Use Medicines
Medical uses.
Use Poisons
Poisons.
[UPFC]

Use
The specimen cited above is the full double cultivar Rudbeckia laciniata cv. ‘Hortensia’, “Golden Glow” (Engl.). This is common in cultivation but is weak-stemmed and apt to sprawl if subjected to heavy winds or rain.
[FIQ]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Catálogo de Plantas y Líquenes de Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of Iraq

    • Flora of Somalia
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Science Photographs

    • Copyright applied to individual images

  • Seed Information Database

    • Royal Botanic Gardens Kew. (2019) Seed Information Database (SID). Version 7.1. Available from: http://data.kew.org/sid/ (September 2019)
    • http://creativecommons.org/licenses/by/3.0

  • Useful Plants and Fungi of Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • World Checklist of Vascular plants (WCVP)

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0