Each pealike flower is between 1 and 2 centimeters long and pale pink in color with a darker spot on the standard, or top, petal.

Other trees in the habitat may include slash pine (Pinus elliottii) and turkey oak (Quercus laevis).

[2] The Florida scrub is a highly endangered habitat type, and the lupine is mainly found in degraded strips or in areas that are in danger of being destroyed for development.

When it was listed under the Endangered Species Act, the lupine was only found on private property which could not be protected.

When it was listed, most of the occurrences were located between Orlando, Florida, and the Walt Disney World complex, an area of busy growth.

The Florida scrub is an ecosystem which depends on a normal regime of periodic wildfires for maintenance.

Fire is largely prevented today in an effort to protect property, so the scrub lands become overgrown and plants, such as the lupine, that require open, bare spots for sunlight become shaded out.

(See Notes On The Life and Work of James Brigham McFarlin, Florida Botanist Sida 22(1):607-613 2006)