''Chionolaena'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of flowering plants in the family

Asteraceae Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

. It is native to tropical and subtropical regions in the Americas, with species occurring discontinuously from central

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

to southern

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

.Freire, S. E. (1993)
A revision of ''Chionolaena'' (Compositae, Gnaphalieae).
''Annals of the Missouri Botanical Garden'' 397-438. About half occur in southeastern Brazil.Loeuille, B., et al. (2011)
Four new species of ''Chionolaena'' (Asteraceae: Gnaphalieae) from south-eastern Brazil.
''Kew Bulletin'' 66(2), 263-72. Plants in this genus are small, woody

shrub A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...

s and subshrubs. They have leaves with rolled edges,

phyllaries In botanical terminology, a phyllary, also known an involucral bract or tegule, is a single bract of the involucre of a composite flower. The involucre is the grouping of bracts together. Phyllaries are reduced leaf-like structures that form one o ...

with white to opaque tips, and

staminate The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament ...

central florets. The plants grow in high-elevation habitat types. ; Species''Chionolaena''.
The Plant List.

References

Asteraceae genera Gnaphalieae {{Gnaphalieae-stub