Loxothysanus sinuatus (Less.) Robinson

Loxothysanus sinuatus (Less.) B. I,. Robinson, Proc. Am. Acad
43: 43. 1907
Bahia sinuata Less, in Schlecht. & Cham. Linnaea 5: 160. 1830. Bahia nepelaefolia A. Gray, Proc. Am. Acad. 5: 184. 1861.
A low shrub; stem terete, erect, tomentulose, corymbosely branched; leaves opposite,
petioled; petioles 0.5-1.5 cm. long; blades deltoid-ovate or subcordate, 1-5 cm. long, sometimes
3-lobed, or obtusely and coarsely toothed, puberulent above, grayishor whitish-tomentulose
beneath; heads corymbose; involucre hemispheric, 5 mm. high, 8-10 mm. broad; bracts
about 12, oblanceolate, acute, tomentulose without; corollas white; tube glandular-puberulent;
lobes lanceolate, fully as long as the' tiu-binate-campanulate throat; achenes 3 mm. long,
hirsute, attenuate at the base ; inner squamellae about 1 mm. long, the outer ones half as long.
Type locality: Hacienda de la Laguna, Vera Cruz. Distribution: Tamaulipas, Puebla, and Vera Cruz.