Information authenticated by Tim Rich of the National Museums and Galleries of Wales.
Annual: Lives or grows for just one year.
Calcareous: Containing free calcium carbonate, chalky.
Ex-situ: Measures to conserve a species or habitat that occur outside of the natural range of the species. E.g. in zoos or botanical gardens.
Lip: In plants, petal or petals that form a lobe.
Whorl: In animals, the spiral or convolutions in the shell of a snail. In plants, a set of leaves, flowers, or branches that spring from a stem at the same point and encircle it.