The Haemanthus sanguineus inflorescence is a compact, cup-shaped or spreading umbel of numerous florets growing on a red, solid, compressed peduncle or scape of up to 27 cm long.
The florets are dark to bright red or pink. They are surrounded by five to eleven, leathery spathe bracts that are separate and erect or angled out, oblong to lanceolate. The bracts vary in width and are also red or pink. The cylindrical perianth tubes of the florets are reddish with some white, the tepals oblong to narrowly lanceolate. These tubes are up to 24 mm long and up to 4 mm wide.
The stamens are variably exserted, the filaments erect, red or pink with white tips. The anthers are oblong, the pollen yellow, a conspicuous component of the visible flowerhead. The nearly globose, pale green ovary is up to 4 mm in diameter, usually out of sight. The style is variably exserted with minute stigma (Duncan, et al, 2016; Manning, 2007; iNaturalist).