Plants A - B
Plants C - D
Plants E - G
Plants H - K
Plants L - N
Plants O - P
Plants Q - R
Plants S - T
Plants U - V
Plants W - Z
List of all plants
Plants H - K
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Hackelia floribunda
Hackelia virginiana
Hedeoma pulegioides
Helenium autumnale
Helenium flexuosum
Helianthemum canadense
Helianthus annuus
Helianthus occidentalis
Heliopsis helianthoides
Hepatica acutiloba
Hepatica americana
Heuchera americana
Heuchera micrantha
Heuchera richardsonii
Heuchera villosa
Hexastylis shuttleworthii
Hexastylis virginica
Hibiscus palustris
Hieracium umbellatum
Hieracium venosum
Houstonia longifolia
Houstonia serpyllifolia
Huperzia lucidula
Hydrastis canadensis
Hydrocotyle verticillata
Hydrophyllum canadense
Hydrophyllum capitatum
Hydrophyllum tenuipes
Hydrophyllum virginianum
Hypericum boreale
Hypericum majus
Hypericum punctatum
Hypericum pyramidatum
Hypoxis hirsuta
Iliamna remota
Impatiens capensis
Iodanthus pinnatifidus
Ipomopsis longiflora
Iris cristata
Iris cristata alba
Iris fulva
Iris lacustris
Iris tenax
Iris verna
Isopyrum biternatum
Jeffersonia diphylla
Justicia americana
Kalmia angustifolia
Kalmia latifolia
Kalmia polifolia
Kosteletzyka virginica
Krigia biflora
Krigia virginica
Plants A - B
Plants C - D
Plants E - G
Plants H - K
Plants L - N
Plants O - P
Plants Q - R
Plants S - T
Plants U - V
Plants W - Z
List of all plants