Arctostaphylos densiflora was created in 1932.
Utricularia densiflora was created in 2011.
Castilleja densiflora was created in 1835.
Arctostaphylos viridissima was created in 1933.
Arctostaphylos luciana was created in 1965.
Arctostaphylos nissenana was created in 1918.
Arctostaphylos klamathensis was created in 1982.
Arctostaphylos rubra was created in 1913.
Arctostaphylos regismontana was created in 1933.
Arctostaphylos canescens was created in 1897.
Arctostaphylos mendocinoensis was created in 1989.
Arctostaphylos montereyensis was created in 1964.
Arctostaphylos mewukka was created in 1918.