Lathyrus pratensis - Leochilus puertoricensis
- Lathyrus pratensis
- Lathyrus pseudocicera
- Lathyrus pubescens
- Lathyrus pusillus
- Lathyrus rigidus
- Lathyrus roseus
- Lathyrus sativus
- Lathyrus sphaericus
- Lathyrus splendens
- Lathyrus sulphureus
- Lathyrus sulphureus var. argillaceus
- Lathyrus sulphureus var. sulphureus
- Lathyrus sylvestris
- Lathyrus szowitsii
- Lathyrus tingitanus
- Lathyrus torreyi
- Lathyrus tuberosus
- Lathyrus venetus
- Lathyrus venosus
- Lathyrus vernus
- Lathyrus vestitus
- Lathyrus vestitus ssp. alefeldii
- Lathyrus vestitus ssp. bolanderi
- Lathyrus vestitus ssp. laetiflorus
- Lathyrus vestitus ssp. laevicarpus
- Lathyrus vestitus ssp. vestitus
- Lauderlindsaya
- Lauderlindsaya borreri
- Launaea
- Launaea cornuta
- Launaea intybacea
- Laurera
- Laurera megasperma
- Laurera subdisjuncta
- Laurus
- Laurus nobilis
- Lavandula
- Lavandula angustifolia
- Lavandula intermedia
- Lavandula latifolia
