- Kaktüs, Caktus (Königen der Nacht) Selenicereus grandiflorus (C) BRITT et ROSE,
- İpeka, Brechwurzel, Cephaelis ipecacuanha
- Huş ağacı, Birke, Betula Pendula
- Hardal, Senf, Brassica nigra (L) KOCH
- Güzelavrat otu, Tollkirsche, Atropa belladona
- Güve otu, Origanum vulgare
- Güneş gülü
- Ginseng
- İnci çiçeği, Maiglöckchen, Convallaria majalis L.
- Isırgan otu, Brennessel, Urtica dioica L.
- Itır, Umkaloabo, Pelergonium sidoides
- Işıldak, Nachtterze, Oenothera biennis L.,
- İgnatiya, Ignatia (Ignatusbohne), Strychnos ignatii BERGİUS
- Hodan, Borretsch, Borago officinalis
- Gül, Rose, Rosa damacena MÜLLER
- Göz otu, Augentrost, Euphrasia officinalis
- Ginkgo, Gingko, Ginkgo biloba
- Hayıt, Mönchspfefter, Vitex agnus-castus
- Grip otu, Wasserhanf
- Hamamelis, Hamamelis, Hamamelis virginiana
- Harpago, Teufelskralle, Harpagophytum procumbens
- Hatmi, Eibisch, Althaea officinalis
- Hibiskus, Hibiküs, Hibiscus sabdariffa
- Kabak, Kürbis, Cucurbita pepo
- Kadın otu, Traubensilberherze Cimicifuga racemosa
- Kantaron, Tausendgüldenkraut, Centaurium ereythraea
- Karabiber, Schwarzerpfetter, Piper nigrum
- Karabuğday, Buckweizen, Fagopyrum esculentum
- Karahindiba, Löwenzahn, Taraxacum officinale
- Karakafes, Beinwell, Symphytum officinalis
- Karanfil, Gemürznelken, Syzygium aromaticum
- Kava-kava, Kava-kava, Piper methysticum
- Kaz otu, Gönsefingerkraut, Potentilla anserina
- Keçisakalı, Madesüβ, Filipendula ulmarina
- Keçisedef otu, Geiβraute, Galega officinalis
- Kedi otu, Baldrian, Valariana officinalis
- Kekik, Thymian, Thymus vulgaris
- Kenevir, Hanf, Cannabis sativa
- Kanaryaotu, Fuchskreuzkraut, Senecio ovatus
- Karpuzda yok yok!
- Havuç her derde deva
- Galfimya, Galphimia, Galphimia glauca
- Gazelotu, Diptam, Dictamnus albus
- Gelincik, Klatschmohn, Papaver rhoeas
- Gilaboru, Schneball, Viburnum opulus
- Grindelya, Grindelia, Gindelia robusta
- Guarana, Guarana, Pauilina capana
- Haronga, Haronga, Harungana madagascariensis
- Haşhaş Schlafmohn Paoaver somniferum
- Havlıcan, Galgant, Alpinia officina
- Hıthıt, Asant, Ferula assa-foetida
- Horasanotu, Zitwer, Artemisia cina
- Hurma, Datteln, Phoenix dactylifera
- Hüdaverdiotu, Gottesgnadenkraut, Gratiola officinalis
- İncir, Feige, Ficus carica
- Jaborandi, Jaborandistrauch, Pilocarpus jaborandi
- Jambol, Jambulbaum, Syzgium cumini
- Kafur, Kampferbaum, Cinnamomum camphora
- Kahve, Kaffee, Coffea arabica
- Kakao, Kakaobaum, Theobroma cacao
- İncir kaktüsü:
- Kalabar baklası, Calabar, Physostigma venenosum
- Kalmiye , Kamia, Kalmia latifolia
- Kanada şifaotu, Kanadisches Berufkraut, Conyza canadensis
- Kara pelinotu, Eberraute, Artemisia abrotanum
- Kardelen, Schneeglöckchen, Galanthus nivalis
- Karnıyarık, Flohsamen, Plantago afra
- Kasıkotu, Bruchkraut, Herniaria glabra
- Kazayağıotu, Amarikanische Wurmkraut, Chenopodium ambrosioides L. var.
- Keçiboynuzu, Johannbrotbaum, Ceratonia siliqua
- Kedibaşıotu, Hohlzahnkraut, Galeopsis segetum
- Kereviz, Sellerie, Apium graveolens
- Kestane, Maronen, Castanea sativa
- Kestere, Ziest, Stachys officinalis
- Keten, Lein, Linum usitatissimum