Maximilianii Characteristics

	stem conspicuously pubescent below the inflorescence with short white hairs
	involucre bracts narrow, mostly with loose acuminate tips
	involucre bracts covered with short white hairs, sometimes ciliate toward the base

Helianthus Characteristics

	involucre not glandular nor glutinous
	involucre bracts in one or more series, but all of the same nature
	rays conspicuous
	ray florets yellow