Baptisia australis (L.) R. Br. var. aberrans (Larisey) M. Mendenhall
eastern prairie blue wild indigo, glade wild indigo
Synonym(s): Baptisia minor var. aberrans
Image ID: 12358
Image by: Cressler, Alan M.
Image Collection: NCBG Digital Library
SCIENTIFIC NAME: Baptisia australis var. aberrans
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2018-11-02
SELECTED SYNONYM: Baptisia aberrans
GENUS CODE: BAPTI GENUS SCIENTIFIC:Baptisia GENUS AUTHORITY: Vent. GENUS COMMON: Wild indigo GENUS SUMMARY: A genus of about 20 species, perennial herbs, of temperate e. and c. North America. GENUS IDENTIFICATION: GENUS REFERENCES: Isely (1981)=Y; Larisey (1940a)=Z; Mendenhall (1994a, 1994b)=X; Turner (2006)=Q; Isely (1998)=I; Woods & Diamond (2014).
FAMILY CODE: FABACE FAMILY SCIENTIFIC:Fabaceae FAMILY AUTHORITY: Lindley 1836 or LEGUMINOSAE A.L. de Jussieu 1789 FAMILY COMMON: Legume Family FAMILY SUMMARY: A family of about 730 genera and 20,000 species, trees, shrubs, and herbs, cosmopolitan. FAMILY REFERENCE: Isely (1990)=SE (throughout the family treatment); Isely (1998)=I; Lewis et al. (2005); Wojciechowski, Lavin, & Sanderson (2004); Wilbur (1963a); Robertson & Lee (1976).
USDA Symbol: BAAUA2
USDA Common Name: Blue Wild Indigo
Native Status: L48 (N)
Distribution: USA (GA, KY, NC, TN)
Growth Habit: Forb/herb
SCIENTIFIC NAME: Baptisia australis var. aberrans
COMMON NAME: Eastern Prairie Blue Wild Indigo, Glade Wild Indigo
SYNONYMY: [= K, X; = Baptisia minor Lehmann var. aberrans Larisey - Z; < B. australis (Linnaeus) R. Brown - RAB, S; < B. australis var. australis - I, Q, SE; < B. australis var. minor (Lehmann) Fernald - C, G, Mo; < B. minor - F]
PHENOLOGY: Apr-May; Jun-Aug.
HABITAT: Glades, barrens, and open woodlands over limestone (or other calcareous rocks) and diabase (or other mafic rocks), in areas that were formerly prairies, barrens, glades, or oak savannas.
COMMENTS: Sw. KY, c. and se. TN, nw. GA, and c. NC. Blue-flowered Baptisia from mafic glades, barrens, and former prairies and oak savannas east of the Mississippi River has proven problematic to taxonomists. Larisey (1940a) treated B. australis and B. minoras separate species, and placed eastern plants resembling B. minor in B. minor var. aberrans Larisey, but without providing very satisfying characters for separating it from typicalB. minor of mw. North America. RAB apparently (though tacitly) included B. minor within B. australis. Isely (1981, 1990) treated blue-flowered Baptisia as B. australis var. australis and var. minor, regarding var. minoras reaching its eastern limit in MO (the two varieties thus allopatric), and stating that sporadic collections within the range of var. australis have the pods and some of the vegetative characters of var. minor… most of these collections are from dry or sterile habitats, e.g., cedar glades, that var. australis typically does not inhabit (Isely 1990). His treatment of australis and minor at the varietal level seems largely based on the existence of minor-like plants within his concept of the range of australis. NC plants from glade-like sites are morphologically more similar to midwestern prairie B. minor, occur in similar habitats, and grow with a large number of other plants with midwestern phytogeographic affinities, such as Eryngium yuccifolium var. yuccifolium, Echinacea laevigata (an eastern sibling of E. purpurea), Solidago ptarmicoides, Solidago rigida ssp. glabrata (an eastern sibling of S. rigida ssp. rigida), Silphium terebinthinaceum, and others. The affinities of these plants seem to be with B. minor; shoehorning them into the more eastern B. australis, which they do not resemble in morphology, habitat, or (indeed) range is not a desirable disposition. Eastern plants referrable to B. minor do, however, as noted by Larisey and Isely, differ from midwestern plants in leaflet size and shape, branching, and pod shape; they are best treated as an eastern, relictual variety in the complex, B. australis var. aberrans Larisey. Mendenhall (1994a, 1994b) found that the aberrans entity warranted taxonomic recognition, and indeed that it is less closely related to B. australis s.s. and B. minorthan they are to one another; she chose to treat the three entities as varieties under B. australis. For now, the best treatment seems to be to follow Mendenhall, and acknowledge the existence of three varietal entities, with the phylogenetic affinities uncertain. The range of B. australis var. minoris thus largely midwestern, from se. NE, s. MO, and e. and c. KS south to w. AR, e. and c. OK, and ne. TX.
RANGE MAP: Baptisia australis var. aberrans.png
Key to Map SymbolsABOUT FAMILY (Weakley Flora) Fabaceae Lindley 1836 or LEGUMINOSAE A.L. de Jussieu 1789 (Legume Family) SUMMARY: A family of about 730 genera and 20,000 species, trees, shrubs, and herbs, cosmopolitan. REFERENCE: Isely (1990)=SE (throughout the family treatment); Isely (1998)=I; Lewis et al. (2005); Wojciechowski, Lavin, & Sanderson (2004); Wilbur (1963a); Robertson & Lee (1976).ABOUT GENUS (Weakley Flora) Baptisia Vent. (Wild indigo) SUMMARY: A genus of about 20 species, perennial herbs, of temperate e. and c. North America. REFERENCE: Isely (1981)=Y; Larisey (1940a)=Z; Mendenhall (1994a, 1994b)=X; Turner (2006)=Q; Isely (1998)=I; Woods & Diamond (2014).