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Santa Cruz Manzanita

Arctostaphylos andersonii A. Gray

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Comprehensive Description

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Uva-ursi andersonii (A. Gray) Abrams
Arctostaphylos Andersonii A. Gray, Proc. Am. Acad. 11: 83. 1876.
An arborescent shrub, usually 3-4 m. high, with erect branches, smooth rather dark reddish-brown bark, and densely setose-hispid and glandularvillous branchlets; leaves crowded, the blades often 4-6 cm. long, ovate-oblong, acute or obtuse at the apex, sessile or nearly so and clasping at the base, nearly glabrous above and shining, more or less tomentose below; flowers in ample panicles ; branches of the inflorescence, bracts, and pedicels densely glandularviilous; bracts more or less foliaceous; corolla 6-7 mm. long, white tinged with pink; ovary densely hairy and more or less glandular; fruit becoming nearly smooth, depressed-globose, 6-8 mm. broad; nutlets irregularly coalescent.
Type locality: Mountain slopes near Santa Cruz, California. Distribution: Santa Cruz Mountains, California.
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bibliographic citation
John Kunkel Small, NathanieI Lord Britton, Per Axel Rydberg, LeRoy Abrams. 1914. ERICALES, CLETHRACEAE, LENNOACEAE, PTROLACEAE, MONOTROPACEAE, ERICACEAE, UVA-URSI. North American flora. vol 29(1). New York Botanical Garden, New York, NY
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Arctostaphylos andersonii

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Arctostaphylos andersonii, the Santa Cruz manzanita, is a species of Arctostaphylos, limited in geography to the Santa Cruz Mountains of California. It grows in openings in redwood forests, usually below 700 meters (2300 feet) elevation.[2][3] It was named after Charles Lewis Anderson by Asa Gray.[4]

Description

Arctostaphylos andersonii is a woody shrub 2–5 m high, which can resemble a small tree. The 4–7 cm smooth leaf blades have serrated edges and deeply lobed bases. It flowers February through May. The fruit is small (2–8 mm) and sticky.

The Santa Cruz manzanita has no basal burl for regrowth and must propagate by seed.

Some populations closer to the Bonny Doon region are highly glaucous (the leaves produce a white, powdery substance on the surface) whereas others are not.

This species is often confused with A. regismontana, A. pallida, and A. pajaroensis, but can be easily identified by geography.

References

  1. ^ "NatureServe Explorer 2.0".
  2. ^ Jepson, W. L. (1951). A Manual of the Flowering Plants of California. p. 750.
  3. ^ Parker, V. Thomas; Vasey, Michael C.; Keeley, Jon E. "Arctostaphylos andersonii Anderson's Manzanita". Jepson eFlora. UC Jepson Herbarium. Retrieved Apr 18, 2020.
  4. ^ Gray, Asa (1876). "Miscellaneous Botanical Contributions". Proc. Amer. Acad. Arts. 11: 83. Retrieved Mar 6, 2020.

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Arctostaphylos andersonii: Brief Summary

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Arctostaphylos andersonii, the Santa Cruz manzanita, is a species of Arctostaphylos, limited in geography to the Santa Cruz Mountains of California. It grows in openings in redwood forests, usually below 700 meters (2300 feet) elevation. It was named after Charles Lewis Anderson by Asa Gray.

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