Loosestrife vs. Lupin — What's the Difference?

Loosestrife is a common name for plants within two different genera:

Any of numerous plants of the genus Lupinus of the pea family, having palmately compound leaves and colorful flowers grouped in spikes or racemes. Some species are cultivated as ornamentals and others for their edible seeds.

Any of various plants of the genus Lythrum, having spikes of purple or white flowers, especially the purple loosestrife.

Any member of the genus Lupinus in the family Fabaceae.

Any of various perennial plants of the genus Lysimachia, having usually yellow flowers.

A lupin bean, a yellow legume seed of a Lupinus plant (usually Lupinus luteus), used as feed for sheep and cattle and commonly eaten in the Mediterranean area and in Latin America although toxic if prepared improperly.

Any of certain flowering plants of the genera Lythrum and Lysimachia, which are not closely related.

Any plant of the genus Lupin; bearing erect spikes of usually purplish-blue flowers

The name of several species of plants of the genus Lysimachia, having small star-shaped flowers, usually of a yellow color.

Any of numerous herbs and subshrubs of the genus Lythrum

Any of various herbs and subshrubs of the genus Lysimachia