The rare Tidestrom's lupine rests its plump seed pods gracefully on the sand. This reclining habit helps the plant survive high winds and frequent dune blow-outs but makes it vulnerable to foraging mice.
The common Chamisso bush lupine holds its seed pods above the ground or hides them in the middle of its shrubbery. This lupine's architecture makes its seeds less vulnerable to predation while they remain on the plant.