According to Philip V. Wells in The Jepson Manual and other sources, there are two subgenera of Arctostaphylos:
Subgenus Micrococcus
Sect.
Micrococcus
Arctostaphylos mendocinoensis Pygmy manzanita
Arctostaphylos myrtifolia Ione manzanita
Arctostaphylos nissenana Nissenan manzanita
Arctostaphylos nummularia Glossyleaf manzanita
Subgenus Arctostaphylos, which has 3 sections:
Sect.
Arctostaphylos
Arctostaphylos alpina Alpine bearberry
Arctostaphylos bakeri Baker's manzanita
Arctostaphylos densiflora Sonoma manzanita
Arctostaphylos edmundsii Little Sur manzanita
Arctostaphylos franciscana Franciscan manzanita
Arctostaphylos gabrielensis San Gabriel manzanita
Arctostaphylos glauca Bigberry manzanita
Arctostaphylos hispidula Gasquet manzanita
Arctostaphylos hookeri Hooker's manzanita
Arctostaphylos insularis Island manzanita
Arctostaphylos klamathensis Klamath manzanita
Arctostaphylos manzanita Common manzanita
Arctostaphylos mewukka Indian manzanita
Arctostaphylos nevadensis Pinemat manzanita
Arctostaphylos parryana Parry manzanita
Arctostaphylos patula Greenleaf manzanita
Arctostaphylos pumila Sandmat manzanita
Arctostaphylos pungens Pointleaf manzanita
Arctostaphylos rudis Shagbark manzanita
Arctostaphylos stanfordiana Stanford's manzanita
Arctostaphylos uva-ursi Bearberry
Arctostaphylos viscida Sticky manzanita
Sect.
Foliobracteata
Arctostaphylos andersonii Santa Cruz manzanita
Arctostaphylos auriculata Mount Diablo manzanita
Arctostaphylos canescens Hoary manzanita
Arctostaphylos catalinae Santa Catalina Island manzanita
Arctostaphylos columbiana Hairy manzanita
Arctostaphylos confertiflora Santa Rosa Island manzanita
Arctostaphylos cruzensis La Cruz manzanita
Arctostaphylos glandulosa Eastwood manzanita
Arctostaphylos glutinosa Schreiber's manzanita
Arctostaphylos hooveri Hoover's manzanita
Arctostaphylos imbricata San Bruno Mountain manzanita
Arctostaphylos luciana Santa Lucia manzanita
Arctostaphylos malloryi Mallory's manzanita
Arctostaphylos montaraensis Montara manzanita
Arctostaphylos montereyensis Monterey manzanita
Arctostaphylos morroensis Morro manzanita
Arctostaphylos nortensis Del Norte manzanita
Arctostaphylos obispoensis Serpentine manzanita
Arctostaphylos osoensis Oso manzanita
Arctostaphylos otayensis Otay manzanita
Arctostaphylos pajaroensis Pajaro manzanita
Arctostaphylos pallida Pallid manzanita
Arctostaphylos pechoensis Pecho manzanita
Arctostaphylos pilosula La Panzo manzanita
Arctostaphylos purissima La Purissima manzanita
Arctostaphylos refugioensis Refugio manzanita
Arctostaphylos regismontana Kings Mountain manzanita
Arctostaphylos silvicola Bonny Doon manzanita
Arctostaphylos tomentosa Woolyleaf manzanita
Arctostaphylos virgata Bolinas manzanita
Arctostaphylos viridissima Whitehair manzanita
Arctostaphylos wellsii Wells' manzanita
Sect.
Pictobracteata
Arctostaphylos pringlei Pringle manzanita
Unassigned
Arctostaphylos rainbowensis Rainbow manzanita
Arctostaphylos gabilanensis Gabilan manzanita
Arctostaphylos ohloneana Ohlone manzanita
Synonyms
Arctostaphylos bicolor is generally considered Xylococcus bicolor
Arctostaphylos crustacea is generally considered Arctostaphylos tomentosa ssp.
crustacea
See also the closely related genus Comarostaphylis, previously often included in Arctostaphylos.
According to Philip V. Wells in The Jepson Manual and other sources, there are two subgenera of Arctostaphylos:
Subgenus Micrococcus
Sect. Micrococcus
Arctostaphylos mendocinoensis Pygmy manzanita
Arctostaphylos myrtifolia Ione manzanita
Arctostaphylos nissenana Nissenan manzanita
Arctostaphylos nummularia Glossyleaf manzanita
Subgenus Arctostaphylos, which has 3 sections:
Sect. Arctostaphylos
Arctostaphylos alpina Alpine bearberry
Arctostaphylos bakeri Baker's manzanita
Arctostaphylos densiflora Sonoma manzanita
Arctostaphylos edmundsii Little Sur manzanita
Arctostaphylos franciscana Franciscan manzanita
Arctostaphylos gabrielensis San Gabriel manzanita
Arctostaphylos glauca Bigberry manzanita
Arctostaphylos hispidula Gasquet manzanita
Arctostaphylos hookeri Hooker's manzanita
Arctostaphylos insularis Island manzanita
Arctostaphylos klamathensis Klamath manzanita
Arctostaphylos manzanita Common manzanita
Arctostaphylos mewukka Indian manzanita
Arctostaphylos nevadensis Pinemat manzanita
Arctostaphylos parryana Parry manzanita
Arctostaphylos patula Greenleaf manzanita
Arctostaphylos pumila Sandmat manzanita
Arctostaphylos pungens Pointleaf manzanita
Arctostaphylos rudis Shagbark manzanita
Arctostaphylos stanfordiana Stanford's manzanita
Arctostaphylos uva-ursi Bearberry
Arctostaphylos viscida Sticky manzanita
Sect. Foliobracteata
Arctostaphylos andersonii Santa Cruz manzanita
Arctostaphylos auriculata Mount Diablo manzanita
Arctostaphylos canescens Hoary manzanita
Arctostaphylos catalinae Santa Catalina Island manzanita
Arctostaphylos columbiana Hairy manzanita
Arctostaphylos confertiflora Santa Rosa Island manzanita
Arctostaphylos cruzensis La Cruz manzanita
Arctostaphylos glandulosa Eastwood manzanita
Arctostaphylos glutinosa Schreiber's manzanita
Arctostaphylos hooveri Hoover's manzanita
Arctostaphylos imbricata San Bruno Mountain manzanita
Arctostaphylos luciana Santa Lucia manzanita
Arctostaphylos malloryi Mallory's manzanita
Arctostaphylos montaraensis Montara manzanita
Arctostaphylos montereyensis Monterey manzanita
Arctostaphylos morroensis Morro manzanita
Arctostaphylos nortensis Del Norte manzanita
Arctostaphylos obispoensis Serpentine manzanita
Arctostaphylos osoensis Oso manzanita
Arctostaphylos otayensis Otay manzanita
Arctostaphylos pajaroensis Pajaro manzanita
Arctostaphylos pallida Pallid manzanita
Arctostaphylos pechoensis Pecho manzanita
Arctostaphylos pilosula La Panzo manzanita
Arctostaphylos purissima La Purissima manzanita
Arctostaphylos refugioensis Refugio manzanita
Arctostaphylos regismontana Kings Mountain manzanita
Arctostaphylos silvicola Bonny Doon manzanita
Arctostaphylos tomentosa Woolyleaf manzanita
Arctostaphylos virgata Bolinas manzanita
Arctostaphylos viridissima Whitehair manzanita
Arctostaphylos wellsii Wells' manzanita
Sect. Pictobracteata
Arctostaphylos pringlei Pringle manzanita
Unassigned
Arctostaphylos rainbowensis Rainbow manzanita
Arctostaphylos gabilanensis Gabilan manzanita
Arctostaphylos ohloneana Ohlone manzanita
Synonyms
Arctostaphylos bicolor is generally considered Xylococcus bicolor
Arctostaphylos crustacea is generally considered Arctostaphylos tomentosa ssp. crustacea
See also the closely related genus Comarostaphylis, previously often included in Arctostaphylos.
Arctostaphylos