Skip to main content
This genus is accepted, and its native range is E. Canada to N. Central & E. U.S.A., China to Temp. E. Asia.
A specimen from Kew's Herbarium

[LKGF]

Harley, R.M. et al. (2004). Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Springer-Verlag, Berlin, Heidelberg, New York.

Morphology General Habit
Perennial herbs often with citrus-like odour
Morphology Leaves
Leaves rather large, opposite or subverticillate, coarsely toothed
Morphology Reproductive morphology Inflorescences
Inflorescence of 2-flowered verticillasters, raceme-like, ebracteolate
Morphology Reproductive morphology Inflorescences Bracts
Bracts usually small, persistent
Morphology Reproductive morphology Flowers Calyx
Calyx campanulate, lobes often subequal, lanceolate-subulate to deltoid, sometimes posterior lip shorter, median lobe rarely minute, lobes often slightly upcurved in fruit, calyx-tube obscurely (5-)10-nerved, throat hairy, often annulate
Morphology Reproductive morphology Flowers Corolla
Corolla white, yellowish or purplish, anterior lip with median lobe flat, entire to laciniate, corolla-tube infundibular to subcylindric, annulate or not, usually long-exserted
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, didynamous, or 2 (posterior pair reduced to staminodes), long-exserted or rarely included, thecae divergent to weakly divaricate, often slightly confluent at apex
Morphology Reproductive morphology Fruits
Nutlets 1(-2) by abortion, globose or subglobose, glabrous, smooth or faintly reticulate.
Note
2n = 50, 52.  About ten species
Ecology
Woodland and montane forest
Distribution
Four species in Eastern North America and about six species in China and Japan, with one endemic species in Taiwan.

Doubtfully present in:

Arkansas, Kansas

Native to:

Alabama, China South-Central, China Southeast, Connecticut, Delaware, Florida, Georgia, Illinois, Japan, Kentucky, Krym, Louisiana, Massachusetts, Michigan, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Ontario, Pennsylvania, Rhode I., South Carolina, Taiwan, Tennessee, Vermont, Virginia, West Virginia, Wisconsin

Collinsonia L. appears in other Kew resources:

First published in Sp. Pl.: 28 (1753)

Accepted by

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Peirson, J.A., Cantino, P.D. & Ballard, H.E. (2006). A taxonomic revision of Collinsonia (Lamiaceae) based on Phenetic analysis of morphological variation Systematic Botany 31: 398-409.

Literature

Lamiaceae Key Genus Fact Sheets

  • Collinsonia L., Sp. Pl. 1: 28 (1753)
  • Diallosteira Raf., Neogenyton: 2 (1825).
  • Harley RM, Atkins S, Budantsev AL, Cantino PD, Conn BJ, Grayer R, Harley MM, de Kok RPJ, Krestovskaja T, Morales R, Paton AJ, Ryding O, and Upson T. 2004. Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Sp
  • Hypogon Raf., Fl. Ludov.: 148 (1817).
  • Keiskea Miq., Ann. Mus. Bot. Lugduno-Batavi 2: 105 (1865).
  • L., Gen. Pl. ed. 5: 16 (1754).
  • Micheliella Briq. in H.G.A.Engler & K.A.E.Prantl, Nat. Pflanzenfam. 4(3a): 325 (1897).
  • Pleuradenia Raf., Neogenyton: 2 (1825).

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Lamiaceae Key Genus Fact Sheets
Nina Davies, Gemma Bramley and Don Kirkup, Royal Botanic Gardens, Kew
http://creativecommons.org/licenses/by/3.0