Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

Please direct any comments to

Thank you.

  Ostrya virginiana (Mill.) K.Koch image
Photographer: Joanne Kline           

Botanical Illustration

Botanical Illustration

Darrin Kimbler

David Lee

David Lee

Kenneth J. Sytsma

Know Your Trees

Michael Clayton

Matthew L. Wagner

Matthew L. Wagner

Matthew L. Wagner
Family Betulaceae
Ostrya virginiana (Mill.) K.Koch
eastern hop-hornbeam, ironwood
Ostrya: Classical name for this genus
virginiana: of Virginia
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: perennial tree to 55' tall, short trunks, open, rounded crowns; bark grayish brown to steel gray raggedly texture of narrow, vertical strips
Flower: male catkin 3/4"-2" long at the ends of the branches; blooms in late spring
Fruit:1 1/3"-2 1/2" long clusters, bracts 1/3" long
Leaf:narrowly oval or elliptic to oblong-lanceolate; edges sharply and unevenly doubly toothed
Habitat: moist; open to shaded hillsides, well-drained floodplains

More Information Natural Communities Herbarium Specimens
All Ostrya list Ethnobotany Information Google- Images or Text

Flora of North America (off site)
Carpinus virginiana Mill.
Ostrya virginica Willd. var. glandulosa Spach
Ostrya virginiana (Mill.) K.Koch f. glandulosa (Spach) J.F.Macbr.
Ostrya virginiana (Mill.) K.Koch f. virginiana
Ostrya virginiana (Mill.) K.Koch subsp. lasia (Fernald) E.Murray
Ostrya virginiana (Mill.) K.Koch var. glandulosa (Spach) Sarg.
Ostrya virginiana (Mill.) K.Koch var. lasia Fernald
Ostrya virginiana (Mill.) K.Koch var. virginiana

Botany News/Events
Book We Recommend
Historical Botanists
Other Links
Botanical Club of Wisconsin (off site)
UW-Stevens Point Biology Dept.
Plants of Wisconsin
Vascular Plants
Natural Communities
Botany News/Events
Other Links
Lichens (off site)   
Tom Volk's Fungi (off site)
Taxonomy of Vascular Plants
                          Vascular Plants
Browse by Identification Guides
Family Wildflowers
Genus Trees
Common Names Shrubs
Search by Vines
Names Aquatic-Semi aquatic
Specimens Ferns - Fern Allies
Blooming Times Grasses, Sedges, or Rushes
County & Status Other Resources  
Town Range Taxonomy of Vascular Plants
  WI Checklist & CofC Values
Browse by:
Common Name
Search by:
Copyright 2012 Permissions Contact Us Web Map