GENUS [BSBI LIST]
In the latin name of a plant, for example Trifolium pratense or Red Clover, the first name is the genus of the plant (the plural of which is 'genera'), the second name is the species name. Red Clover belongs to the Pea (Fabaceae) family.
Not all plants in the same family share the same genus. Thus the Pea Family consists of several genera some of which are Astragalus, Oxytropis, Anthyllis, Ornithopus and Hippocrepis. All members of the same genera share some of the same characteristics.
If you click on one of the genera, a Pop Out Page [POP] will attempt to list of all of the species in that genera, produced courtesy of the website of the BSBI [Botanical Society of the British Isles]. This is simply a search function, so be aware that if the search word is very short like 'arum' or 'rosa' then it may find a great many extraneous items. Simply disregard any entries in the BSBI list that do not start with the search word, which in the examples above would be 'arum' or 'rosa'.
[For instance, even with the trailing space in the search term, searching for 'Arum ' still picks up Asarum Carum and Comarum because the BSBI search algorithm ignores the initial capitalization. There is nothing the Author here can do about that problem save draw their attention to the anomaly. But it is probably highly counter-productive for their search algorithm to also heed capitalization, for then searches would fail when folk type the lot in capitals, as some do~].
If you simply want to see flowers in this website under a certain Genus name, then please look in the Subject Index.