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Arctostaphylos montaraensis

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Arctostaphylos montaraensis
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Ericales
Family:
Ericaceae
Genus:
Arctostaphylos
Species:
A. montaraensis
Binomial name
Arctostaphylos montaraensis
J.B. Roof[1]
Synonyms

Arctostaphylos imbricata Eastw.
Arctostaphylos imbricata Eastw. subsp. montaraensis (J.B. Roof) P.V. Wells[2]

Arctostaphylos montaraensis,known by the common name Montara manzanita, is a species of manzanita in the Ericaceae family.[1]

Distribution

This perennial evergreen shrub is endemic to California, native only to a few occurrences in northern San Mateo County on San Bruno Mountain and Montara Mountain, northern extensions of the Santa Cruz Mountains.[1]

It is found at elevations of 80–500 metres (260–1,640 ft) on the two mountains, growing on decomposing granite and sandstone rock outcrops, in coastal chaparral and coastal sage scrub habitats.[1]

The plant is ranked as a Critically endangered species by the California Native Plant Society Inventory of Rare and Endangered Plants of California, due to being threatened by new developments and off trail/road walking and vehicle (e.g. motorcycles, mountain bikes) habitat degradation.[3]

Description

Arctostaphylos montaraensis is a mounding to erect shrub that can grow to heights from 0.5 metres (1.6 ft) (on exposed granite outcrops) to 5 metres (16 ft). The multiple trunks and stems have a deep reddish−brown bark. The twigs and nascent inflorescence axis are coated in glandular bristles. The shrub has a dense foliage of light gray−green glandular leaves, rough and dull in texture, and up to 4 or 5 centimeters long.[2]

The inflorescence is a dense cluster of cone-shaped manzanita flowers, each white in color, and just under a centimeter long and with bristles inside.[2] The flowering period is January through March.[1]

The small "apple−like" (Spanish manzanita) red fruits are 6–7 millimetres (0.24–0.28 in) wide.

Cultivation

Arctostaphylos montaraensis is cultivated as a chaparral landscaping plant, for California native plant, drought tolerant, and natural habitat gardens.[4]

See also

References

  1. ^ a b c d e Calflora: Arctostaphylos montaraensis
  2. ^ a b c Jepson eFlora: Arctostaphylos montaraensis
  3. ^ California Native Plant Society, Rare Plant Program. 2017; Inventory of Rare and Endangered Plants of California (online edition, v8-03 0.39): Arctostaphylos montaraensis report. accessed 5 May 2017.
  4. ^ Yerba Buena Nursery, native plant horticulture database: Arctostaphylos montaraensis
Arctostaphylos montaraensis, in the Berkeley University of California Botanical Garden California chaparral garden.


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