1. Grown for its thickened edible aromatic root
   - celeriac, celery root, knob celery, root celery, turnip-rooted celery

Type of: herb, herbaceous plant

• genus Hippoglossus
• genus Hippopotamus
• genus Hipposideros
• genus Hippotragus
• genus Hipsurus
• genus Hirudo
• genus Hirundo
• genus Hoheria
• genus Holarrhena
• genus Holbrookia
• genus Holcus
• genus Holocentrus
• genus Holothuria
• genus Homarus
• genus Homo
• genus Homogyne
• genus Homona
• genus Hordeum
• genus Horneophyton
• genus Hosta
• genus Hottonia
• genus Houttuynia
• genus Hovea
• genus Hoya
• genus Hudsonia