>>5230447Lentilis shell/kernel grows longer on the inside and shorter on the outside building up elastic tension all this is tied too a weak point its tail that was attached too the parent plant, when sufficiently bumped into at the bottom the shell will curl out gripping onto what ever it was be it debris like scrap, wires or a rock even sand curling up and "firmly" anchoring it in place with its thin shell where it will germinate into a seedling.
there bread and butter is growing in awkward places where not anything else can have its seeds put roots