The unit was defined as that illumination emanating from a lamp burning pure colza oil (obtained from the seed of the plant Brassica campestris) at a defined rate.
Brassica rapa, the cultivated turnip species, which has been introduced throughout the world
Brassica oleracea | Brassica | Brassica rapa | Rapa | Brassica nigra | Te Rapa | Rapa Nui language | Ogu and Mampato in Rapa Nui |
Andrena agilissima is an oligolectic species, feeding only on pollen of a few genera of Cruciferous vegetables (Brassicaceae species, as Brassica napus, Brassica rapa, Raphanus raphanistrum, Barbarea vulgaris and Sinapis species).