Penstemon (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Penstemon" in English language version.

Last modified: 00:33:56, 9 June 2026 (UTC)

Ref.Un. Ref.Website

Global rank English rank

2722worldcat.org

4^th place

2323rhs.org.uk

1,321^st place

666^th place

2117archive.org

6^th place

55doi.org

2^nd place

44jstor.org

23^rd place

15^th place

44nih.gov

5^th place

42floranorthamerica.org

low place

7,126^th place

31kew.org

100^th place

140^th place

31ohio-state.edu

7,569^th place

6,616^th place

31worldfloraonline.org

2,468^th place

4,923^rd place

11researchgate.net

96^th place

89^th place

11worldplants.de

8,766^th place

low place

11waltersgardens.com

low place

archive.org (Global: 6^th place; English: 6^th place)

Brenzel 1995, p. 607. Brenzel, Kathleen Norris, ed. (1995). Sunset Western Garden Book (40th Anniversary ed.). Menlo Park, California: Sunset Publishing Corporation. ISBN 978-0-376-03851-7. Retrieved 2024-07-09.
Jepson & Holmgren 1993, p. 1050. Jepson, Willis Linn; Holmgren, Noel H. (1993) [1925]. Hickman, James C. (ed.). The Jepson Manual: Higher Plants of California (First ed.). Berkeley, California: University of California Press. ISBN 0-52008255-9.
Taylor 1992, p. 50. Taylor, Ronald J. (1992). Sagebrush Country : A Wildflower Sanctuary (1st ed.). Missoula, Montana: Mountain Press Publishing Company. ISBN 0-87842-280-3. OCLC 1005485280. Retrieved 2024-07-10.
Lindgren, Wilde & American Penstemon Society 2003, p. 7. Lindgren, Dale Tennis; Wilde, Ellen M.; American Penstemon Society (2003). Growing Penstemons: Species, Cultivars, and Hybrids. Haverford, Pennsylvania: Infinity Publishing. ISBN 0-7414-1529-1. OCLC 54110971. Retrieved 2024-07-10.
Lindgren, Wilde & American Penstemon Society 2003, p. 11. Lindgren, Dale Tennis; Wilde, Ellen M.; American Penstemon Society (2003). Growing Penstemons: Species, Cultivars, and Hybrids. Haverford, Pennsylvania: Infinity Publishing. ISBN 0-7414-1529-1. OCLC 54110971. Retrieved 2024-07-10.
Heil et al. 2013, p. 715. Heil, Kenneth D.; O'Kane, Jr., Steve L.; Reeves, Linda Mary; Clifford, Arnold (2013). Flora of the Four Corners Region : Vascular Plants of the San Juan River Drainage, Arizona, Colorado, New Mexico, and Utah. St. Louis, Missouri: Missouri Botanical Garden. Retrieved 2024-07-14.
Welsh et al. 1987, p. 579. Neese, Elizabeth C. (1987). "Penstemon". In Welsh, Stanley L.; Atwood, N. Duane; Goodrich, Sherel; Higgins, Larry C. (eds.). A Utah Flora. Great Basin Naturalist Memoirs, No. 9 (First ed.). Provo, Utah: Brigham Young University. JSTOR 23377658. OCLC 9986953694. Retrieved 2025-02-18.
Way & James 1998, p. 16–17. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 17–18. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 18–19. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 19. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 14. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 18. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 20. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 22–24. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 20,22,24. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 153. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.

doi.org (Global: 2^nd place; English: 2^nd place)

Burrows & Tyrl 2012, p. 884. Burrows, George Edward; Tyrl, Ronald J. (2012). Toxic Plants of North America (2nd ed.). Hoboken, New Jersey: Wiley-Blackwell. doi:10.1002/9781118413425.ch57. ISBN 978-0-813-82034-7. OCLC 815970198.
Olmstead et al. 2001. Olmstead, Richard G.; de Pamphilis, Claude W.; Wolfe, Andrea D.; Young, Nelson D.; Elisons, Wayne J.; Reeves, Patrick A. (February 2001). "Disintegration of the Scrophulariaceae". American Journal of Botany. 88 (2): 348–361. doi:10.2307/2657024. JSTOR 2657024. PMID 11222255.
Oxelman et al. 2005. Oxelman, Bengt; Kornhall, Per; Olmstead, Richard G.; Bremer, Birgitta (May 2005). "Further disintegration of Scrophulariaceae". Taxon. 54 (2): 411–425. doi:10.2307/25065369. ISSN 0040-0262. JSTOR 25065369.
Wolfe et al. 2006. Wolfe, Andrea D.; Randle, Christopher P.; Datwyler, Shannon L.; Morawetz, Jeffery J.; Arguedas, Nidia; Diaz, Jose (November 2006). "Phylogeny, taxonomic affinities, and biogeography of Penstemon (Plantaginaceae) based on ITS and cpDNA sequence data". American Journal of Botany. 93 (11): 1699–1713. doi:10.3732/ajb.93.11.1699. PMID 21642115.
Katzer, Wessinger & Hileman 2019, p. 377. Katzer, Amanda M.; Wessinger, Carolyn A.; Hileman, Lena C. (July 2019). "Nectary size is a pollination syndrome trait in Penstemon". New Phytologist. 223 (1): 377–384. doi:10.1111/nph.15769. ISSN 0028-646X. JSTOR 26675987. PMC 6593460. PMID 30834532.

floranorthamerica.org (Global: low place; English: 7,126^th place)

Freeman 2021. Freeman, Craig C. (December 8, 2021). "Penstemon - FNA". Flora of North America. Retrieved 2024-07-09.
"Penstemon - FNA". floranorthamerica.org. Retrieved 2025-12-03.

jstor.org (Global: 23^rd place; English: 15^th place)

Olmstead et al. 2001. Olmstead, Richard G.; de Pamphilis, Claude W.; Wolfe, Andrea D.; Young, Nelson D.; Elisons, Wayne J.; Reeves, Patrick A. (February 2001). "Disintegration of the Scrophulariaceae". American Journal of Botany. 88 (2): 348–361. doi:10.2307/2657024. JSTOR 2657024. PMID 11222255.
Oxelman et al. 2005. Oxelman, Bengt; Kornhall, Per; Olmstead, Richard G.; Bremer, Birgitta (May 2005). "Further disintegration of Scrophulariaceae". Taxon. 54 (2): 411–425. doi:10.2307/25065369. ISSN 0040-0262. JSTOR 25065369.
Welsh et al. 1987, p. 579. Neese, Elizabeth C. (1987). "Penstemon". In Welsh, Stanley L.; Atwood, N. Duane; Goodrich, Sherel; Higgins, Larry C. (eds.). A Utah Flora. Great Basin Naturalist Memoirs, No. 9 (First ed.). Provo, Utah: Brigham Young University. JSTOR 23377658. OCLC 9986953694. Retrieved 2025-02-18.
Katzer, Wessinger & Hileman 2019, p. 377. Katzer, Amanda M.; Wessinger, Carolyn A.; Hileman, Lena C. (July 2019). "Nectary size is a pollination syndrome trait in Penstemon". New Phytologist. 223 (1): 377–384. doi:10.1111/nph.15769. ISSN 0028-646X. JSTOR 26675987. PMC 6593460. PMID 30834532.

kew.org (Global: 100^th place; English: 140^th place)

powo.science.kew.org

POWO 2024. POWO (2024). "Penstemon Schmidel". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2024-07-09.

nih.gov (Global: 5^th place; English: 5^th place)

pubmed.ncbi.nlm.nih.gov

Olmstead et al. 2001. Olmstead, Richard G.; de Pamphilis, Claude W.; Wolfe, Andrea D.; Young, Nelson D.; Elisons, Wayne J.; Reeves, Patrick A. (February 2001). "Disintegration of the Scrophulariaceae". American Journal of Botany. 88 (2): 348–361. doi:10.2307/2657024. JSTOR 2657024. PMID 11222255.
Wolfe et al. 2006. Wolfe, Andrea D.; Randle, Christopher P.; Datwyler, Shannon L.; Morawetz, Jeffery J.; Arguedas, Nidia; Diaz, Jose (November 2006). "Phylogeny, taxonomic affinities, and biogeography of Penstemon (Plantaginaceae) based on ITS and cpDNA sequence data". American Journal of Botany. 93 (11): 1699–1713. doi:10.3732/ajb.93.11.1699. PMID 21642115.
Katzer, Wessinger & Hileman 2019, p. 377. Katzer, Amanda M.; Wessinger, Carolyn A.; Hileman, Lena C. (July 2019). "Nectary size is a pollination syndrome trait in Penstemon". New Phytologist. 223 (1): 377–384. doi:10.1111/nph.15769. ISSN 0028-646X. JSTOR 26675987. PMC 6593460. PMID 30834532.

ncbi.nlm.nih.gov

Katzer, Wessinger & Hileman 2019, p. 377. Katzer, Amanda M.; Wessinger, Carolyn A.; Hileman, Lena C. (July 2019). "Nectary size is a pollination syndrome trait in Penstemon". New Phytologist. 223 (1): 377–384. doi:10.1111/nph.15769. ISSN 0028-646X. JSTOR 26675987. PMC 6593460. PMID 30834532.

ohio-state.edu (Global: 7,569^th place; English: 6,616^th place)

wolfelab.asc.ohio-state.edu

Wolfe Lab 2023. "Penstemon". Wolfe Lab. Ohio State University. 2023. Retrieved 2024-07-14.

researchgate.net (Global: 96^th place; English: 89^th place)

Wolfe et al. 2006. Wolfe, Andrea D.; Randle, Christopher P.; Datwyler, Shannon L.; Morawetz, Jeffery J.; Arguedas, Nidia; Diaz, Jose (November 2006). "Phylogeny, taxonomic affinities, and biogeography of Penstemon (Plantaginaceae) based on ITS and cpDNA sequence data". American Journal of Botany. 93 (11): 1699–1713. doi:10.3732/ajb.93.11.1699. PMID 21642115.

rhs.org.uk (Global: 1,321^st place; English: 666^th place)

"AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 75. Retrieved 2018-04-22.
"RHS Plant Selector Penstemon 'Andenken an Friedrich Hahn' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plant Selector Penstemon 'Beech Park' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plant Selector Penstemon 'Connie's Pink' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plant Selector Penstemon 'Evelyn' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plant Selector Penstemon 'George Home' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plant Selector Penstemon 'Hewell Pink Bedder' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plant Selector Penstemon 'Hidcote Pink' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plant Selector Penstemon 'Margery Fish' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plant Selector Penstemon 'Maurice Gibbs' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-27.
"RHS Plantfinder - Penstemon 'Osprey' (Bird Series)". Retrieved 2021-01-27.
"RHS Plantfinder - Penstemon hartwegii". Retrieved 2018-04-22.
"RHS Plant Selector Penstemon isophyllus AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-28.
"RHS Plantfinder - Penstemon pinifolius 'Wisley Flame'". Retrieved 2018-04-22.
"RHS Plantfinder - Penstemon rupicola". Retrieved 2018-04-22.
"RHS Plant Selector Penstemon 'Port Wine' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-28.
"RHS Plant Selector Penstemon 'Raven' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-28.
"RHS Plantfinder - Penstemon 'Rich Ruby'". Retrieved 2018-04-22.
"RHS Plant Selector Penstemon procerus 'Roy Davidson' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-30.
"RHS Plant Selector Penstemon 'Rubicundus' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-30.
"RHS Plant Selector Penstemon 'Schoenholzeri' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-30.
"RHS Plant Selector Penstemon 'Sour Grapes' M. Fish AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-30.
"RHS Plant Selector Penstemon 'Stapleford Gem' AGM / RHS Gardening". Apps.rhs.org.uk. Retrieved 2021-01-30.

waltersgardens.com (Global: low place; English: low place)

Walters Gardens. Penstemon 'Dark Towers' PP20013

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Taylor 1992, p. 50. Taylor, Ronald J. (1992). Sagebrush Country : A Wildflower Sanctuary (1st ed.). Missoula, Montana: Mountain Press Publishing Company. ISBN 0-87842-280-3. OCLC 1005485280. Retrieved 2024-07-10.
Lindgren, Wilde & American Penstemon Society 2003, p. 7. Lindgren, Dale Tennis; Wilde, Ellen M.; American Penstemon Society (2003). Growing Penstemons: Species, Cultivars, and Hybrids. Haverford, Pennsylvania: Infinity Publishing. ISBN 0-7414-1529-1. OCLC 54110971. Retrieved 2024-07-10.
Lindgren, Wilde & American Penstemon Society 2003, p. 11. Lindgren, Dale Tennis; Wilde, Ellen M.; American Penstemon Society (2003). Growing Penstemons: Species, Cultivars, and Hybrids. Haverford, Pennsylvania: Infinity Publishing. ISBN 0-7414-1529-1. OCLC 54110971. Retrieved 2024-07-10.
Nold 1999, p. 38. Nold, Robert (1999). Penstemons (1st ed.). Portland, Oregon: Timber Press. ISBN 0-88192-429-6. OCLC 44962199.
Nold 1999, p. 53–54. Nold, Robert (1999). Penstemons (1st ed.). Portland, Oregon: Timber Press. ISBN 0-88192-429-6. OCLC 44962199.
Burrows & Tyrl 2012, p. 884. Burrows, George Edward; Tyrl, Ronald J. (2012). Toxic Plants of North America (2nd ed.). Hoboken, New Jersey: Wiley-Blackwell. doi:10.1002/9781118413425.ch57. ISBN 978-0-813-82034-7. OCLC 815970198.
Nold 1999, p. 19. Nold, Robert (1999). Penstemons (1st ed.). Portland, Oregon: Timber Press. ISBN 0-88192-429-6. OCLC 44962199.
Oxelman et al. 2005. Oxelman, Bengt; Kornhall, Per; Olmstead, Richard G.; Bremer, Birgitta (May 2005). "Further disintegration of Scrophulariaceae". Taxon. 54 (2): 411–425. doi:10.2307/25065369. ISSN 0040-0262. JSTOR 25065369.
Welsh et al. 1987, p. 579. Neese, Elizabeth C. (1987). "Penstemon". In Welsh, Stanley L.; Atwood, N. Duane; Goodrich, Sherel; Higgins, Larry C. (eds.). A Utah Flora. Great Basin Naturalist Memoirs, No. 9 (First ed.). Provo, Utah: Brigham Young University. JSTOR 23377658. OCLC 9986953694. Retrieved 2025-02-18.
Way & James 1998, p. 16–17. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Nold 1999, p. 58–59. Nold, Robert (1999). Penstemons (1st ed.). Portland, Oregon: Timber Press. ISBN 0-88192-429-6. OCLC 44962199.
Way & James 1998, p. 17–18. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 18–19. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Bennett, Lodewick & Lodewick 1987, p. 15–16. Bennett, Ralph W.; Lodewick, Kenneth; Lodewick, Robin (1987). Penstemon Nomenclature (2nd ed.). Eugene, Oregon: American Penstemon Society. pp. 4–6, 15–16. OCLC 21365444.
Way & James 1998, p. 19. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Katzer, Wessinger & Hileman 2019, p. 377. Katzer, Amanda M.; Wessinger, Carolyn A.; Hileman, Lena C. (July 2019). "Nectary size is a pollination syndrome trait in Penstemon". New Phytologist. 223 (1): 377–384. doi:10.1111/nph.15769. ISSN 0028-646X. JSTOR 26675987. PMC 6593460. PMID 30834532.
Way & James 1998, p. 14. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 18. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 20. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 22–24. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 20,22,24. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.
Way & James 1998, p. 153. Way, David; James, Peter (1998). The Gardener's Guide to Growing Penstemons (1st ed.). Newton Abbot, England; Portland, Oregon: David & Charles Publishers; Timber Press. ISBN 978-0-88192-424-4. OCLC 38879416. Retrieved 2024-07-10.

worldfloraonline.org (Global: 2,468^th place; English: 4,923^rd place)

WFO 2024. WFO (2024). "Penstemon Schmidel". www.worldfloraonline.org. Retrieved 2024-04-04.

worldplants.de (Global: 8,766^th place; English: low place)

Hassler 2024. Hassler, Michael (June 30, 2024). "Synonymic Checklist and Distribution of the World Flora. Version 19.4". World Plants. Retrieved 2024-07-10.

Penstemon (English Wikipedia)

archive.org (Global: 6th place; English: 6th place)

doi.org (Global: 2nd place; English: 2nd place)

floranorthamerica.org (Global: low place; English: 7,126th place)

jstor.org (Global: 23rd place; English: 15th place)

kew.org (Global: 100th place; English: 140th place)

powo.science.kew.org

nih.gov (Global: 5th place; English: 5th place)

pubmed.ncbi.nlm.nih.gov

ncbi.nlm.nih.gov

ohio-state.edu (Global: 7,569th place; English: 6,616th place)

wolfelab.asc.ohio-state.edu

researchgate.net (Global: 96th place; English: 89th place)

rhs.org.uk (Global: 1,321st place; English: 666th place)

waltersgardens.com (Global: low place; English: low place)

worldcat.org (Global: 4th place; English: 4th place)

search.worldcat.org

worldfloraonline.org (Global: 2,468th place; English: 4,923rd place)

worldplants.de (Global: 8,766th place; English: low place)

archive.org (Global: 6^th place; English: 6^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

floranorthamerica.org (Global: low place; English: 7,126^th place)

jstor.org (Global: 23^rd place; English: 15^th place)

kew.org (Global: 100^th place; English: 140^th place)

nih.gov (Global: 5^th place; English: 5^th place)

ohio-state.edu (Global: 7,569^th place; English: 6,616^th place)

researchgate.net (Global: 96^th place; English: 89^th place)

rhs.org.uk (Global: 1,321^st place; English: 666^th place)

worldcat.org (Global: 4^th place; English: 4^th place)

worldfloraonline.org (Global: 2,468^th place; English: 4,923^rd place)

worldplants.de (Global: 8,766^th place; English: low place)