 |
| English | Finnish |
| black alpine-sedge | mustasara (Carex atrata L.) |
| black bent | isorölli (Agrostis gigantea Roth; Agrostis stolonifera L. var. gigantea (Roth) W. D. J. Koch) |
| black-bindweed | kiertotatar (Fallopia convolvulus (L.) A. Löve; Bilderdykia convolvulus (L.) Dum.; Helxine convolvulus (L.) Neuman; Polygonum convolvulus L.) |
| black currant | mustaherukka (Ribes nigrum L.) |
| black-eyed-susan | kesäpäivänhattu (Rudbeckia hirta L.; Rudbeckia bicolor Nutt.; Rudbeckia serotina Nutt.) |
| black-grass | rikkapuntarpää (Alopecurus myosuroides Huds.; Alopecurus agrestis L.) |
| black horehound | porro (Ballota nigra L.; Ballota nigra L. ssp. ruderalis (Sw.) Briq.; Ballota ruderalis Sw. (ssp. nigra); Ballota alba L.; Ballota borealis Schweigg.; Ballota foetida auct. (ssp. foetida)) |
| black medick | nurmimailanen (Medicago lupulina L.) |
| black mustard | mustasinappi (Brassica nigra (L.) W. D. J. Koch; Melanosinapis communis (L.) K. F. Schimp. & Spenn.; Sinapis nigra L.) |
| black nightshade | mustakoiso (Solanum nigrum L.; Solanum nigrum L. var. schultesii (Opiz) Rouy (ssp. schultesii)) |
| black pea | mustalinnunherne (Lathyrus niger (L.) Bernh.; Orobus niger L.) |
| black-poplar | mustapoppeli (Populus nigra L.; Populus nigra L. var. italica M�nchh. ('Italica'); Populus nigra L. var. italica auct. ('Plantierensis')) |