Nouns that Start with H
- hackberry
- hackmatack
- hagberry
- hair
- halm
- halogeton
- halophyte
- hardheads
- hardinggrass
- harebell
- haricot
- harvest
- haulm
- haustorium
- haw
- hawkweed
- hawthorn
- hazel
- hazelnut
- head
- heartsease
- heartwood
- heath
- heather
- hegari
- hellebore
- hemerocallis
- hemlock
- hemp
- henbane
- henbit
- hepatic
- hepatica
- hepaticae
- herb
- herbage
- hibiscus
- hickory
- hilum
- hip
- hogweed
- holly
- hollyhock
- holophyte
- honesty
- honeypot
- honeysuckle
- hop
- hops
- horehound
- hornbeam
- hornwort
- horsebean
- horsemint
- horseradish
- horsetail
- horseweed
- hosta
- houseplant
- hoya
- huckleberry
- huisache
- hull
- husk
- hyacinth
- hydathode
- hydrangea
- hydrastis
- hydrilla
- hydrophyte
- hygrophyte
- hymenium
- hypanthium
- hypha
- hyssop