Arctostaphylos pilosula

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Arctostaphylos pilosula
Arctostaphylos pilosula.jpg
Status TNC G2.svg
Imperiled  (NatureServe) [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Arctostaphylos
Species:
A. pilosula
Binomial name
Arctostaphylos pilosula
Jeps. & Wies. ex Jeps.

Arctostaphylos pilosula is a species of manzanita, known by the common names La Panza manzanita and Santa Margarita manzanita, that is endemic to California. [2] [3]

Contents

Its common names comes from populations on the La Panza Range, near the town of Santa Margarita. [2]

Distribution

The plant is endemic San Luis Obispo County, found in three areas: the La Panza Range, the east slope of the Santa Lucia Mountains near Atascadero, and in the San Luis Range near Pismo Beach. [2]

It grows in chaparral and closed-cone pine forest habitatss, on shale and sandstone outcrops and slopes. It is found at elevations of 30–1,250 metres (98–4,101 ft). [2] [3]

Description

Arctostaphylos pilosula is an erect and bristly shrub growing 1–5 metres (3.3–16.4 ft) in height. [2] [3]

The leaves are a round, oval shape and dull and hairless in texture. They grow up to 3 centimetres (1.2 in) long. [3]

The shrub blooms in spherical white inflorescences of cone-shaped and downward facing "manzanita" flowers, each just under 1 centimetre (0.39 in) long. Its bloom period is December to March. [3]

The fruit is a reddish-brown drupe about a centimeter wide, that ripen in the summer. [3]

Conservation

The species is listed on the California Native Plant Society Inventory of Rare and Endangered Plants as a fairly endangered and vulnerable species. [4]

Related Research Articles

<i>Arctostaphylos</i> Genus of flowering plants in the heath family Ericaceae

Arctostaphylos is a genus of plants comprising the manzanitas and bearberries. There are about 60 species of Arctostaphylos, ranging from ground-hugging arctic, coastal, and mountain shrub to small trees up to 6 m tall. Most are evergreen, with small oval leaves 1–7 cm long, arranged spirally on the stems. The flowers are bell-shaped, white or pale pink, and borne in small clusters of 2–20 together; flowering is in the spring. The fruit are small berries, ripening in the summer or autumn. The berries of some species are edible.

<i>Arctostaphylos andersonii</i> Species of flowering plant

Arctostaphylos andersonii, the Santa Cruz manzanita, is a species of Arctostaphylos.

<i>Arctostaphylos catalinae</i> Species of tree

Arctostaphylos catalinae, known by the common name Santa Catalina Island manzanita, is a species of manzanita native to Southern California.

<i>Arctostaphylos confertiflora</i> Species of flowering plant

Arctostaphylos confertiflora is a rare species of manzanita known by the common name Santa Rosa Island manzanita. This shrub is endemic to California, where it grows on the sandstone bluffs of Santa Rosa Island in the Channel Islands. This manzanita is listed as an endangered species by the United States Government.

<i>Arctostaphylos glandulosa</i> Species of flowering plant

Arctostaphylos glandulosa, with the common name Eastwood's manzanita, is a species of manzanita.

<i>Arctostaphylos pallida</i> Species of flowering plant

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.

<i>Arctostaphylos bakeri</i> Species of flowering plant

Arctostaphylos bakeri is a species of manzanita known by the common name Baker's manzanita. It is endemic to Sonoma County, California, where it grows in the chaparral and woodlands of the North Coast Ranges. It is sometimes a member of the serpentine soils flora.

<i>Arctostaphylos densiflora</i> Species of flowering plant

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 glandulosa subsp. gabrielensis, known by the common name San Gabriel manzanita, is a subspecies of manzanita. It is endemic to one small area in the San Gabriel Mountains of Los Angeles County, California.

<i>Arctostaphylos insularis</i> Species of flowering plant

Arctostaphylos insularis is a species of manzanita known by the common name island manzanita. It is endemic to Santa Cruz Island, one of the Channel Islands of California.

<i>Arctostaphylos luciana</i> Species of tree

Arctostaphylos luciana is a species of manzanita known by the common name Santa Lucia manzanita, is endemic to California.

<i>Arctostaphylos montaraensis</i> Species of flowering plant

Arctostaphylos montaraensis, known by the common name Montara manzanita, is a species of manzanita in the family Ericaceae.

<i>Arctostaphylos myrtifolia</i> Species of flowering plant

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.

<i>Arctostaphylos nevadensis</i> Species of flowering plant

Arctostaphylos nevadensis, with the common name pinemat manzanita, is a species of manzanita native to western North America.

<i>Arctostaphylos obispoensis</i> Species of tree

Arctostaphylos obispoensis is a species of manzanita, known by the common names bishop manzanita and serpentine manzanita, endemic to California.

<i>Arctostaphylos silvicola</i> Species of flowering plant

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.

The Bonny Doon Ecological Reserve is a nature preserve of 552 acres (2.23 km2) in the Santa Cruz Mountains of California, United States. The reserve protects several rare and endangered plant and animal species within an area known as the Santa Cruz Sandhills, an ancient seabed containing fossilized marine animals.

<i>Arctostaphylos gabilanensis</i> Species of tree

Arctostaphylos gabilanensis is a rare species of manzanita known by the common name Gabilan manzanita.

<i>Arctostaphylos ohloneana</i> Species of flowering plant

Arctostaphylos ohloneana is a rare species of manzanita known by the common name Ohlone manzanita in the Santa Cruz Mountains in California. It is endemic to northwest Santa Cruz County, where it is known only from four populations on Ben Lomond Mountain, just south of Big Basin Redwoods State Park.

<i>Arctostaphylos hooveri</i> Species of tree

Arctostaphylos hooveri, the Santa Lucia manzanita, is a plant species endemic to the Santa Lucia Mountains in Monterey County, California. It grows in woodlands and in chaparral scrub-land at elevations of 900–1200 m.

References

  1. "NatureServe Explorer 2.0".
  2. 1 2 3 4 5 "Field Guide to Manzanitas," Michael Kauffmann, Tom Parker, & Michael Vasey, Backcountry Press, 2015, ISBN   978-1-941624-02-9, page 113.
  3. 1 2 3 4 5 6 V. Thomas Parker, Michael C. Vasey & Jon E. Keeley 2014. Arctostaphylos pilosula, in Jepson Flora Project (eds.) Jepson eFlora. accessed 15 January 2016.
  4. CNPS, Rare Plant Program. 2016. Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. — Arctostaphylos luciana. accessed 1.16.2016.