Baccharis macraei

Baccharis macraei
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Baccharis
Species:	B. macraei
Binomial name
	Baccharis macraei; Hook. & Arn., 1840
	distribution of Baccharis macraei
Synonyms
	Baccharis macraei var. lucida Heering

Baccharis macraei is a species of shrub native to Chile and Peru.^[1]

Description[]

The plants are 50-150 cm tall shrubs. The branching angle is relatively wide. In the first few years the stems are covered in dense trichomes, which lead to the impression of a round stem. However the stems are edged underneath. With age the stems become greyish brown, shiny and rugose. The firm, waxy leaves, which only have a lifespan of one year, are grouped at the apex of branches. They are obovate and have a toothed margin. The apical leaves envelop the singular, terminal, sessile inflorescences. The capitulum is 5-7 mm wide in male plants and 4-7.5 mm wide in female plants.^[2]

Natural hybridisation[]

This species is part of a homoploid hybrid swarm involving Baccharis linearis. Together both parent species form the natural hybrid Baccharis intermedia.^[3]

References[]

^ "Baccharis macraei Hook. & Arn". Plants of the World Online. Royal Botanic Gardens Kew. Retrieved 26 January 2022.
^ Hellwig, F. (30.11.1990). Die Gattung Baccharis L. (Compositae - Asteraceae) in Chile. Mitteilungen der Botanischen Staatssammlung München.
^ Faini, Francesca; Hellwlg, Frank; Labbé, Cecilia; Castillo, Mariano (January 1991). "Hybridization in the Genus Baccharis : Baccharis linearis χ B. macraei". Biochemical Systematics and Ecology. 19 (1): 53–57. doi:10.1016/0305-1978(91)90113-E.

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[1] "Baccharis macraei Hook. & Arn". Plants of the World Online. Royal Botanic Gardens Kew. Retrieved 26 January 2022.

[2] Hellwig, F. (30.11.1990). Die Gattung Baccharis L. (Compositae - Asteraceae) in Chile. Mitteilungen der Botanischen Staatssammlung München.

[3] Faini, Francesca; Hellwlg, Frank; Labbé, Cecilia; Castillo, Mariano (January 1991). "Hybridization in the Genus Baccharis : Baccharis linearis χ B. macraei". Biochemical Systematics and Ecology. 19 (1): 53–57. doi:10.1016/0305-1978(91)90113-E.

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