''Siphocampylus sulfureus'' is a species of

plant Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclud ...

in the family

Campanulaceae The family Campanulaceae (also bellflower family), of the order Asterales, contains nearly 2400 species in 84 genera of herbaceous plants, shrubs, and rarely small trees, often with milky sap. Among them are several familiar garden plants belon ...

. It grows as an annual herbaceous shrub to 3 m (occasionally 4 m) tall. It has tubular yellow flowers arranged in whorls around the vertical stems. The flowers emit a pungent musky smell reminiscent of foxes, particularly at night. In the day,

white-throated hummingbird The white-throated hummingbird (''Leucochloris albicollis'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Argentina, Brazil, Paraguay, and Uruguay.HBW and BirdLife International (2021) ...

s (''Leucochloris albicollis''), Brazilian rubies (''Clytolaema rubricauda'') and purple-breasted plovercrests visit the flowers while at night the

tailed tailless bat The tailed tailless bat (''Anoura caudifer'') is a species of leaf-nosed bat from South America. Taxonomy The scientific name of this species is variously given as either ''A. caudifer'' or ''A. caudifera'', with scientists having argued for bot ...

(''Anoura caudifer'') visits.

References

sulfureus Flora of Brazil Plants described in 1926 {{Campanulaceae-stub