Monday, August 26, 2013

Plants of Lanark County Ontario

Plants
of
Lanark County
Ontario

2013 Edition

David J. White

July 2013

To contribute new records or offer comments, contact me at:
Phone (613) 259-3135
e-mail: djwhite@xplornet.ca
© David J. White 2013

TABLE OF CONTENTS
ACKNOWLEDGEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FIGURE 1: SIMPLIFIED BEDROCK GEOLOGY . . . . . . . . . . . . 9
SIGNIFICANT AREAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
FIGURE 2: LANARK COUNTY LOCATIONS . . . . . . . . . . . . . 20
ANNOTATED CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
APPENDIX 1: Excluded Species and Unconfirmed Reports . . . . 79
APPENDIX 2: Alphabetical List of Significant Native Plants . . . 81
BIBLIOGRAPHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

ACKNOWLEDGEMENTS
I would like to thank a number of people for their important contribution to the checklist. Dan Brunton,
Ottawa, has provided many records, offered on-going support and encouragement, helped with
identifications, and reviewed several earlier drafts of the list. Mike Oldham, Natural Heritage Information
Centre, Peterborough, reviewed earlier drafts of the list, provided many records over the years, and made
available the database of Lanark County records from the herbarium of Queen’s University. Mike also
checked the identification of over 100 of my voucher specimens of grasses and sedges. Stephen Darbyshire,
Agriculture Canada, Ottawa, reviewed the grass family, provided a number of records, and helped locate
relevant literature. Don Cuddy, formerly with the Ministry of Natural Resources (MNR), Kemptville, made
field notes available and reviewed several early drafts of the list.
I would like to thank several former colleagues (all now retired) from the Canadian Museum of Nature,
Ottawa. Albert Dugal provided many records and helped with identifications. Mike Shchepanek made field
notes available, provided printouts of records from the Museum’s plant database, and helped locate some
references. George Argus helped with identification of some Willow (Salix) collections and reviewed that
section of a draft of the list. Jim Soper provided access to his site records and data files of Ontario shrubs.
Patsie Rothschild (formerly of Sheridans Rapids) made many important discoveries, took me to special
places, and also reviewed several early drafts of the list. The late Adolf Vogg, Arnprior, explored much of
the northern portion of the county and contributed many records to this list. Adolf's enthusiasm for botanizing
new places and finding new plants helped to keep me interested in the checklist project during the early
years. Eleanor Thomson, Merrickville, provided numerous records of new and significant species—based
on her recent inventory work in several parts of the county—and took the author to several special locations.
Graham Page of Ottawa and Kristl Walek (formerly of North Gower) contributed many recent county records
and Graham has taken me to many interesting locations he has found in the county. Jean Griffin, Perth,
provided a number of new records and took the author to several special locations. Howard Clifford of the
(now-closed) Alba Wilderness School, Flower Station, took the author to a number of diverse areas on his
extensive property. I would also like to thank several people who contributed one to a few records each:
Heather Patterson of Kitchener, Ken Allison of Ottawa, Ron Hepworth of Brantford, Nora Mansfield of
Perth, and Dawson Girdwood of Perth.
Joyce and Allan Reddoch, Ottawa, supplied the records from the Native Orchid Location Survey and
reviewed the orchid section of the draft list. The late Clarrie Frankton, formerly of Agriculture Canada,
Ottawa, reviewed an early draft of the list and helped with some identifications. Ted Mosquin, Fallbrook,
provided many records and took the author to several interesting areas. Tobi Kiesewalter, Murphys Point
Provincial Park, provided park observations and helped the author relocate several old records. Bill Crins,
Ontario Parks, Peterborough, helped with several identifications, mainly in the genus Carex. Cathy and Paul
Keddy, Carleton Place, provided several important records and took the author to a number of diverse areas
on their large property.
Kathy Sauvé, former Park Superintendent for Murphys Point and Silver Lake Provincial Parks, Mike Ogilvie,
Park Superintendent for Murphys Point Provincial Park, and John Immerseel, Ontario Parks Southeastern
Zone Manager, allowed the author to conduct plant studies in the two parks. I would also like to thank the
curators and collection managers of the Ottawa-Hull herbaria of Agriculture Canada and the Canadian
Museum of Nature for helping with access to Lanark County specimens. Alice White helped with editing
and data checking, and Katy (Williams) White helped on several field trips.
Finally, I would like to thank Shaun Thompson, MNR, Kemptville, who arranged funding in 1998 to enable
my rough draft list to progress to a useable—albeit preliminary—state. Without the help and encouragement
of the above-mentioned people, this list would be little more than a pile of field notes and several boxes of
file cards.


Cover photo: Water Smartweed (Persicaria amphibia).