in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.5: 329. 1836
se United States.
Species 2 (2 in the flora).
Bigelowia is recognized by its leaves basally disposed or in basal rosettes, slender, subscapiform stems, and densely corymbiform arrays of small, cylindro-turbinate, discoid heads with phyllaries in vertical ranks and yellow corollas. Karyotypes of Bigelowia species, as well as various floral features, resemble those of Euthamia (L. C. Anderson 1970, 1972), and a hypothesis of relationship has been tentatively confirmed by molecular evidence (M. A. Lane et al. 1996). G. L. Nesom (1994) placed Bigelowia closest to Chrysoma, Euthamia, Gundlachia, and Xylothamia on the basis of morphologic evidence.
|1||Plants with rhizomes or crowns, sometimes enlarging by offsets from stem/caudex bases; leaves linear-oblanceolate to oblanceolate or narrowly spatulate, 2–14 mm wide, bases not persistent||Bigelowia nudata|
|1||Plants with rhizomelike caudex branches (becoming colonial or loosely matted); leaves linear, 1–2 mm wide, bases persistent (± sheathing branches of caudices)||Bigelowia nuttallii|
|Author||Guy L. Nesom +|
|Common name||Rayless-goldenrod +|
|Etymology||For Jacob Bigelow, 1787–1879, Massachusetts medical and botanical scholar +|
|Illustrator||Barbara Alongi +|
|Reference||anderson1970a +, anderson1972b + and anderson1977a +|
|Taxon name||Bigelowia +|
|Taxon parent||Asteraceae tribe Astereae +|
|Taxon rank||genus +|
|Volume||Volume 20 +|