From January to May each year the white sand scrub on the Lake Wales Ridge in Lake, Osceola, Polk, and Highlands Counties are adorned with the cheery blue flowers of the Florida endemic skyblue lupine (pronounced LOO-PIN).
Some botanists consider it a synonym of Lupinus diffusus , but others argue that L. diffuses differs by its habitat, range, prostrate to decumbent stems, orbicular-reniform (kidney-shaped) standard, and a nearly straight beak on the pods.
The stems of Lupinus cumulicola are usually erect with gray-green, silky pubescent, elliptic leaves that average 2”–3” long and about 1” wide. The pods have a curved beak.
Lupinus is taken from lupus, or “wolf,” and alludes to the curious belief that these plants consumed soil fertility, when, in fact, they improve the soil with nitrogen-fixing bacteria. The species name cumulicola means “dweller on a heap or mound,” in this case, sand. It comes from the same root word for cumulus …