Baptisia

Genus of legumes

Baptisia, commonly referred to as wild indigo or false indigo, represents a diverse genus within the legume family, Fabaceae. These flowering herbaceous perennials exhibit an array of characteristics, including pea like flowers, blooming in the spring that eventually mature into pods, occasionally displaying an inflated form. Renowned for their enduring presence and a spectrum of colours ranging from yellow, blue and white, Baptisia's captivate gardeners with their colourful stems, unique foliage, and exquisite flowers. Native to regions spanning from the East to the Midwest of North America, Baptisia species contribute to the natural beauty of various ecosystems. Their flowers, adorned with characteristic wing and keel petals, give rise to bean like fruit. Typically, their leaves are trifoliate, divided into three segments, often accompanied by small stipules on the petiole, which aid in species identification. The name "Baptisia" finds its origins in the Greek word "bapto", meaning "to dye" alluding to certain species historically utilized for dye production. Similarly, the common name "False Indigo" highlights the plant's historical role as a substitute for true indigo (Indigofera) from the West Indies. The cultivation of Baptisia represents one of the earliest instances of agricultural subsidies in America, underscoring its historical significance in the agricultural landscape. The species most commonly found and used in cultivation is B. australis. Baptisia alba (L.) Vent.—white wild indigo
var. alba (L.) Vent. var. macrophylla (Larisey) Isely
Baptisia albescens Small

Baptisia arachnifera W. H. Duncan—cobwebby wild indigo, hairy rattleweed (limited to two counties in southeastern Georgia)
Baptisia australis (L.) R. Br.—blue false indigo, blue wild indigo
var. australis (L.) R. Br. var. minor (Lehm.) Fernald
Baptisia bicolor Greenm. & Larisey
Baptisia bracteata Elliott—longbract wild indigo, Plains wild indigo
var. bracteata Elliott
var. glabrescens (Larisey) Isely
var. laevicaulis (Canby) Isely
var. leucophaea (Nutt.) Kartesz & Gandhi

Baptisia calycosa Canby—Florida wild indigo
var. calycosa Canby
var. villosa Canby
Baptisia cinerea (Raf.) Fernald & B. G. Schub.—grayhairy wild indigo

Baptisia deamii Larisey

Baptisia fragilis Larisey

Baptisia fulva Larisey

Baptisia intercalata Larisey
Baptisia intermedia Larisey

Baptisia lanceolata (Walter) Elliott—gopherweed (Georgia, Alabama, Florida, South Carolina) and MT. Cuba Center'a Trial Garden have directed their efforts towards introducing new varieties. The following hybrids have been described:

Baptisia x bicolor
Baptisia × bushii Small
Baptisia x deamii
Baptisia x microphylla
Baptisia x serenae
Baptisia x sulphurae
Baptisia ×variicolor Kosnik, et al. (Baptisia australis × Baptisia sphaerocarpa)

Baptisia can be naturally found in forested habitats, particularly along woodland borders, where they can reach heights of 3 to 4 feet. A tea, made from the leaves and stalks, was used to treat snake bites, as it has astringent and antiseptic properties, as well as to counteract mercurial salivation. Baptisia tinctoria, was commonly used by indigenous communities for its several medicinal purposes. A root tea was employed as both an emetic and purgative, while cold tea was utilized to alleviate vomiting. The tea was also applied topically to alleviate leg, arm, and stomach cramps and wounds, with additional claims of stimulating bile secretion. German studies have demonstrated that extracts from the plant stimulate the immune system, although caution is advised regarding large doses due to potential harm. During the early 19th century, the U. S. Pharmacopeia included wild indigo, as doctors experimented with extracts derived from the plant to treat typhoid fever. Experimental use of root tinctures and powders resulted in symptoms resembling those of the onset of typhoid, leading practitioners of homeopathy to anticipate potential cures for the disease.