Families (As per The Plant List)
H
Haloragaceae -
2 (
Myriophyllum spicatum, Myriophyllum tuberculatum)
Hamamelidaceae -
1 (
Corylopsis himalayana)
Hydrangeaceae -
10 (
Deutzia compacta, Deutzia macrantha, Deutzia staminea, Dichroa febrifuga, Hydrangea aspera, Hydrangea aspera subsp. robusta, Hydrangea heteromalla, Hydrangea hortensis, Hydrangea macrophylla, Philadelphus tomentosus)
Hydroleaceae -
2 (
Hydrolea zeylanica, wigandia kunthii)
Hypericaceae -
8 (
Hypericum choisianum, Hypericum dyeri, Hypericum elodeoides, Hypericum himalaicum, Hypericum monanthemum, Hypericum oblongifolium, Hypericum perforatum, Hypericum podocarpoides)