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Antennaria howellii Greene
Coefficient of Conservatism: 2
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Can be expected almost anywhere in dry open places. Frequent on rock ledges and outcrops of all kinds and in sandy or rocky savanna (especially in openings and clearings) with jack pine, oak, aspen, and/or red maple; sometimes on moist shores; fields, roadsides, banks, even in lawns.

Staminate clones are very rare in this species.

Subsp. howellii is western and three subsp. occur in Michigan. Cauline leaves of subsp. canadensis (Greene) Bayer share with A. neglecta a distinctive little flat scarious tip or “flag,” sometimes curled or sometimes involute (and then not always easy to distinguish from a merely subulate tip). The glabrous and bright green upper surfaces of the basal leaves are often quite striking compared to the relatively dull, gray, ± pubescent young leaves of the other subspecies. Subspecies neodioica (Greene) Bayer has rather short stolons, with all leaves nearly as large as the terminal rosette ones, and the basal leaves tend to have more distinct petioles as well as to be the most heavily pubescent above of all our subspecies. Thus, in this subspecies there are often dense mats of crowded rosettes of dull-looking leaves. Subspecies petaloidea (Fernald) Bayer tends to have elongate stolons bearing leaves along them distinctly smaller than their terminal rosette leaves. Cauline leaves of this subspecies apparently can rarely have the little “flag” tips that characterize subsp. canadensis. The basal leaves of subsp. petaloidea, unlike those of subsp. neodioica, tend to be obovate without distinct petioles. Both subsp. petaloidea and subsp. neodioica sometimes resemble A. parlinii in the possession of at least partly 3-nerved basal leaves, but they tend to shorter involucres (less than 7.5, or very rarely 8, mm) than in that species.

The distributions of subsp. petaloidea and subsp. neodioica are essentially throughout the range mapped for the whole complex; subsp. canadensis comes south only to Saginaw Co., thus barely meeting the latitude in Gratiot Co. for the northernmost clear-cut records of A. neglecta.


Alcona County
Alger County
Allegan County
Alpena County
Antrim County
Arenac County
    Including Charity Island
Baraga County
Barry County
Bay County
Benzie County
Berrien County
Calhoun County
Cass County
Charlevoix County
    Only on Beaver Island
Cheboygan County
Chippewa County
    Including Drummond Island
Clare County
Clinton County
Crawford County
Delta County
Dickinson County
Emmet County
Genesee County
Gogebic County
Grand Traverse County
Gratiot County
Hillsdale County
Houghton County
Huron County
Ingham County
Iosco County
Iron County
Isabella County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Lapeer County
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Lenawee County
Livingston County
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Missaukee County
Monroe County
Montcalm County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Osceola County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Roscommon County
Saginaw County
Sanilac County
Schoolcraft County
St. Clair County
Tuscola County
Van Buren County
Washtenaw County
Wayne County
Wexford County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 30, 2023.