Apodanthera undulata

A. Gray
Smithsonian Contr. Knowl. 5(6): 60. 1853.
Illustrated
Treatment appears in FNA Volume 6. Treatment on page 29.

Distribution

V6 44-distribution-map.jpg

Ariz., N.Mex., Tex., Mexico.

Discussion

Varieties 2 (1 in the flora).

Apodanthera undulata in the flora area is recognized by its reniform, undulate-margined, and white-backed leaves and yellow petals. Variety australis McVaugh (A. aspera Cogniaux) differs in reduced vestiture and pistillate inflorescence; it occurs in Mexico (Aguascalientes, Guanajuato, Hidalgo, Jalisco, Michoacán, Nayarit, Oaxaca, Querétaro, San Luis Potosí, Zacatecas). According to McVaugh, the two varieties are allopatric.

Selected References

None.