Maltawildplants.com is now considered an online flora of the Maltese islands, portraying more than 900 species of plants found in Maltese habitats. It harbours a forum created in 2005 were memberes discuss topics about the Maltese flora and ID of plants.
because I do not want to be too mean you get a picture of the whole plant. It is a very rare native of Malta, but maybe not so rare because it is easy to overlook
No wolf, its not Wolffia arrhiza DW - that's really really small! (about the tail of the ballotra on the 1c coin or in better words about 2mm high, rootless plant with oval opposite leaves.
Tha photo shows a simple dicot plant with soliary terminal flowers. I just wish to know the number of petals.
Still looking desperately for Saxifraga at Incita. About the sepals no idea. Saxifraga is wrong but you would not be the first one to confuse both species, ever some professional botanist must have been mixing them up.
Will start looking desperately for Wolffia if you do not give me the location. Or is it at the nursery?
HCW told us about the location of Wolffia at Incita.
Puzzled:
You said that you do not know how many sepals the plant has.... but do you know what the plant is!! If yes, you should know the number of sepals / petals!
Against:
Crucifers are usually raceme inflorescence while the photo shows a solitary flower. The descriptions I have says leaves are more obtuse/spatulate than those of the photo.
Favour:
Crucifers are 4 sepals, eatable for hungry jack, and maybe the photo is some week, malnutritioned plant. The world "mean" in the title might be refering to this not-typical form of the Erophila verna
Alternatively, I had in mind the Rubiaciea Family (eg some galium), though the leaves are not perfectely whorls here