| Arctostaphylos virgata | |
|---|---|
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Ericales |
| Family: | Ericaceae |
| Genus: | Arctostaphylos |
| Species: | A. virgata |
| Binomial name | |
| Arctostaphylos virgata | |
Arctostaphylos virgata is a species of manzanita known by the common names Bolinas manzanita and Marin manzanita.
It is endemic to Marin County, California, where it is known from only about 20 occurrences in the forests and chaparral of the coastal hills. It is a dominant shrub in some spots in the maritime chaparral plant community at Point Reyes National Seashore. [2] Like many other species in this type of plant community, it is dependent on wildfire and its survival is threatened by fire suppression.
Arctostaphylos virgata is a large shrub, reaching at least two meters tall and known to exceed 5 meters in height, becoming treelike. Its twisted branches are covered in deep red bark. The smaller twigs are coated in woolly fibers and studded with glandular bristles which exude sticky resins. The shiny green leaves are rough and sticky in texture, oval to widely lance-shaped, and up to 5 centimeters long. The inflorescence is a dense cluster of urn-shaped manzanita flowers. The fruit is a sticky, bristly drupe about 6-8 millimeters wide.
Bolinas Ridge is a north-south ridge in southwestern Marin County, California. Much of the western side of the ridge is protected parkland in the Golden Gate National Recreation Area, and the eastern side is watershed lands of the Marin Municipal Water District.
Arctostaphylos morroensis is a species of manzanita known by the common name Morro manzanita. This shrub is endemic to San Luis Obispo County, California, where it is known only from the vicinity of Morro Bay.
Arctostaphylos viscida, with the common names whiteleaf manzanita and sticky manzanita, is a species of manzanita.
Arctostaphylos glandulosa, with the common name Eastwood's manzanita, is a species of manzanita.
Arctostaphylos pallida, commonly known as pallid manzanita, Oakland Hills manzanita, and Alameda manzanita, is an upright manzanita shrub from the Ericaceae, or heath family. It is endemic to the eastern San Francisco Bay Area of Northern California.
Arctostaphylos glauca is a species of manzanita known by the common name bigberry manzanita. It is native to California and Baja California, where it grows in the chaparral and woodland of coastal and inland hills.
Arctostaphylos canescens, common name hoary manzanita, is a species of manzanita.
Arctostaphylos densiflora, known by the common name Vine Hill manzanita, is a very rare species of manzanita. It is endemic to Sonoma County, California, where it is known from only one extant population of 20 to 30 individual plants. These last wild members of the species are on land near Sebastopol which is owned and protected by the California Native Plant Society. In addition, there are five to ten plants of this manzanita taxon growing on private property about a mile away. The local habitat is mostly chaparral on sandy shale soils.
Arctostaphylos glutinosa is a species of manzanita known by the common name Schreiber's manzanita. It is endemic to Santa Cruz County, California, where it is known from only a few occurrences on the western slopes of the Santa Cruz Mountains. It grows in the chaparral of the limestone and diatomaceous shale ridges on the coastline.
Arctostaphylos imbricata is a species of manzanita known by the common name San Bruno Mountain manzanita.
Arctostaphylos malloryi is a species of manzanita known by the common name Mallory's manzanita. It is endemic to California.
Arctostaphylos myrtifolia is a rare species of manzanita known by the common name Ione manzanita. It is endemic to the Sierra Nevada foothills of California. It grows in the chaparral and woodland plant community on a distinctive acidic soil series, an oxisol of the Eocene-era Ione Formation, in western Amador and northern Calaveras counties. There are only eleven occurrences, of which three have not been recorded since 1976. This is a federally listed threatened species.
Arctostaphylos nevadensis, with the common name pinemat manzanita, is a species of manzanita native to western North America.
Arctostaphylos nissenana is a species of manzanita known by the common name Nissenana manzanita or El Dorado manzanita. It is endemic to California, where it grows in the woodlands and chaparral of the Sierra Nevada foothills, mostly in El Dorado County.
Arctostaphylos pechoensis is a species of manzanita known by the common name Pecho manzanita. It is endemic to California, where it is known only from the Pecho Hills southwest of San Luis Obispo in San Luis Obispo County, California.
Arctostaphylos regismontana is a species of manzanita known by the common name Kings Mountain manzanita. It is endemic to California, where it is known from the northern slopes of the Santa Cruz Mountains in the southern San Francisco Bay Area.
Arctostaphylos rudis, with the common names Shagbark manzanita and Sand mesa manzanita, is a species of manzanita.
Arctostaphylos silvicola is a species of manzanita known by the common names Bonny Doon or silverleaf manzanita. It is endemic to the sandhills of the southern Santa Cruz Mountains in California's Santa Cruz and Santa Clara counties.
Arctostaphylos rainbowensis is a species of manzanita known by the common name Rainbow manzanita. It is endemic to California, where it is known only from northern San Diego and southern Riverside Counties in the Peninsular Ranges.
Arctostaphylos glandulosa subsp. crassifolia is a rare perennial shrub, a subspecies of manzanita within the heather family commonly known as the Del Mar manzanita. It is narrowly endemic to the sandstone coastal terraces of San Diego County and northwestern Baja California. It is a burl-forming evergreen shrub typically found growing in a rambling habit on poor soils and hardpan. From December to February, white to pink urn-shaped flowers decorate its foliage, giving way to small fruits. It is listed as endangered and is threatened by land development, invasive species and modifications to the natural fire regime.
Media related to Arctostaphylos virgata at Wikimedia Commons
Data related to Arctostaphylos virgata at Wikispecies  | This Ericaceae article is a stub. You can help Wikipedia by expanding it. |
