Inflorescence terminal and usually axillary, paniculate to rarely spicate; bracts 1-3, leaf-like, reduced ascending or erect; peduncles present or not, trigonous, smooth or scabridulous on the angles.

Capitulescences racemose to spicate; capitula subsessile, homogamous, discoid; receptacle epaleate; involucre three- to six-seriate.

Capitulescences monocephalous or two- to four-headed, racemose to spicate; capitula sessile to pedunculate, homogamous, discoid or ligulate; receptacle epaleate; involucre multiseriate.

Capitulescences spicate to paniculate; capitula sessile, homogamous, ligulate, one- to ten-flowered; receptacle epaleate, glabrous to setose; involucre multiseriate.

Involucre two-seriate; capitulescences monocephalous, racemose, spicate to pseudocephalium Nassauvia 6b.

Capitulescences monocephalous, racemose, spicate, to glomerulose or pseudocephalium; capitula sessile to pedunculate, homogamous, discoid or radiate, five-flowered, occasionally one- to four-flowered; receptacle epaleate; involucre two-seriate.

Capitulescences corymbose, paniculate to spicate; capitula sessile to pedunculate, homogamous, discoid or radiate; receptacle epaleate; involucre one- to five-seriate.

Capitulescences racemose, corymbose, spicate to paniculate; capitula unisexual or bisexual, sessile to subsessile, discoid; receptacle epaleate; involucre multiseriate.

Inflorescence terminal or axillary, racemose, spicate, corymbose, umbellate, fasciculate, capitate, or of solitary flowers; bracts and bracteoles extremely various; flower articulated or continuous with pedicel.

Inflorescence terminal, rarely axillary, spicate, racemose, or corymbose, sometimes reduced; bracts paired and [+ or -] basal, bracteoles usually present; calyx articulated with pedicel.

The unit inflorescence is always an axillary, blastotelic, pedunculate, capitulate or spicate raceme.