Arctostaphylos glauca

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Arctostaphylos glauca
Arctostaphylos glauca 8S6A0992.jpg
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. glauca
Binomial name
Arctostaphylos glauca

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.

Contents

Description

Arctostaphylos glauca is a large shrub varying in size from one to well over six meters in height. Individuals growing in desert regions tend to be shorter than those on the coast. Leaves are light gray-green, somewhat waxy, oval in shape to nearly round, and smooth or toothed along the edges. They are up to five centimeters long and four wide and grow on short petioles about a centimeter long.

The inflorescence holds hanging clusters of narrow urn-shaped white flowers. The edible fruit is a round or egg-shaped drupe 12 to 15 millimeters wide. It is light red in color and has a thick pulp covered in a tough, sticky coat. The fruit contains three to six nutlets fused into a single mass. The shrub reproduces by seed and by layering. Seeds require exposure to fire before they can germinate.

It is a long-lived species, reaching 100 years of age or more, though it does not begin to fruit until it is around 20 years old. The shrub is allelopathic, inhibiting the growth of other plants in its understory when rain leaches toxic arbutin and phenolic acids from its foliage. [2]

Uses

Despite their constipating effects, the fruits were eaten by the Native Americans of California, who also made the ripe fruit into a cider. [3]

Ecology

Tamalia glaucensis is an aphid that induces leaf galls on big-berry manzanita. [4]

See also

Related Research Articles

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

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References

  1. Botanic Gardens Conservation International (BGCI) & IUCN SSC Global Tree Specialist Group (2019). "Arctostaphylos glauca". The IUCN Red List of Threatened Species . 208. IUCN. e.T144282654A149001453. doi: 10.2305/IUCN.UK.2019-2.RLTS.T144282654A149001453.en . S2CID   242088102.
  2. Ecology
  3. Peattie, Donald Culross (1953). A Natural History of Western Trees. New York: Bonanza Books. p. 674.
  4. Miller, D.G.; Pike, K.S.; Foottit, R.G.; Maw, H.E.L. (2023). "Three new species of Tamalia (Hemiptera, Aphididae, Tamaliinae) associated with leaf galls on Arbutus , Arctostaphylos , and Comarostaphylis in North America". The Canadian Entomologist. 155. doi:10.4039/tce.2022.41. ISSN   0008-347X.