Hair-like Sedge
Hairgrass
Hairsedge
Hairy Beardtongue
Hairy Brome
Hairy Crabgrass
Hairy Evening Primrose
Hairy Goldenrod
Hairy Grama
Hairy Hedgenettle
Hairy Lespedeza
Hairy Lettuce
Hairy New York Aster
Hairy Nightshade
Hairy Purslane Speedwell
Hairy Rockcress
Hairy Sedge
Hairy White Oldfield Aster
Hairy Woodland Brome
Hairy Woodrush
Hairystem Gooseberry
Halberdleaf Tearthumb
Halfchaff Sedge
Hammer Sedge
Handsome Harry
Hard Fescue
Hardstem Bulrush
Hare Barley
Harlequin Blueflag
Harrimanella
Harsh Dewberry
Hawkbit
Hawksbeard
Hawkweed
Hawthorn
Hay Sedge
Hayscented Fern
Hazel Alder
Hazelnut
Heartleaf Foamflower
Heartleaf Twayblade
Heath
Heath Woodrush
Heather