Question: What type of category does Baccharis and Magnolia have in common?
Context: Baccharis sergiloides is a species of baccharis known by the common name desert baccharis. Baccharis plummerae is a California species of "Baccharis" known by the common name Plummer's baccharis.  It is named in honor of American botanist Sara Plummer Lemmon, 1836 – 1923. Baccharis texana is a North American species of shrubs in the aster family known by the common name prairie baccharis or false willow.  It is native to northeastern Mexico (Coahuila, Nuevo León, Tamaulipas) and to the southern part of the Great Plains of the United States (Texas, Oklahoma, New Mexico). Baccharis salicina is a species of North American plants in the sunflower family.  Common names include willow baccharis, and Great Plains false willow. Baccharis is a genus of perennials and shrubs in the aster family (Asteraceae).  They are commonly known as baccharises but sometimes referred to as "brooms", because many members have small thin leaves resembling the true brooms.  They are not at all related to these however, but belong to an entirely different lineage of eudicots. "B. halimifolia" is commonly known as "groundsel bush", however true groundsels are found in the genus "Senecio". Baccharis wrightii is a North American species of shrubs in the aster family known by the common name Wright’s baccharis or false willow.  It is native to northern Mexico (Chihuahua, Coahuila, Durango, Sonora) and the southwestern and south-central United States (Arizona, New Mexico, Texas, Oklahoma, Kansas, Colorado, Utah). Baccharis vanessae is a rare California species of baccharis known by the common name Encinitas baccharis.  It is native primarily to San Diego County, California, almost endemic to the county except for one population a few miles over the county line in Riverside County.  It is a member of the chaparral flora.  It is a federally listed threatened species.  It is present in several sites in Encinitas, and it is known from other parts of the county from the coastline to the mountains on various substrates.  There are perhaps 15 populations remaining, for a total of about 2000 individuals.  Some of the remaining occurrences are on land which may be cleared for development. Magnolia virginiana, most commonly known as sweetbay magnolia, or merely sweetbay (also laurel magnolia, swampbay, swamp magnolia, whitebay, or beaver tree), is a member of the magnolia family, Magnoliaceae.  It was the first magnolia to be scientifically described under modern rules of botanical nomenclature, and is the type species of the genus "Magnolia"; as "Magnolia" is also the type genus of all flowering plants (magnoliophytes), this species in a sense typifies all flowering plants. Magnolia is a large genus of about 210 flowering plant species in the subfamily Magnolioideae of the family Magnoliaceae.  It is named after French botanist Pierre Magnol. Baccharis thesioides is a North American species of shrubs in the aster family known by the common name Arizona baccharis.  It is widespread in Mexico from Chihuahua to Oaxaca, and also found in the southwestern United States (Arizona + New Mexico).
Answer: genus