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Birch Leaf Mountain Mahogany

Cercocarpus montanus var. glaber (S. Wats.) F. L. Martin

Comprehensive Description

provided by North American Flora
Cercocarpus paucidentatus (S. Wats.) Britton, Trans. N. Y
Acad. Sci. 14: 31. 1894.
Cercocarpus parvifolius paucidentatus S. Wats. Proc. Am. Acad. 17: 353. 1882. Cercocarpus Treleasei C. K. Schneid. Handb. Laubh. 1: 530. 1905.
A shrub with gray bark; branches sparsely hirsute, purpurescent ; petioles very short r 1-3 mm. long, hirsute; leaf-blades 5-10 mm. long, 2-7 mm. broad, thick, obovate, rounded or emarginate at the apex, cuneate at the base, entire or slightly 2or 3-toothed at the apex, with slightly revolute margins, dark, loosely hirsute-villous above, white-tomentose and villoushirsute beneath ; flowers solitary or two in the axils, short-pedicelled ; tube of the hypanthium whitevillous, 6 mm. long, in fruit 8 mm. long; limb together with the sepals 4 mm. broad; anthers hirsute; style in fruit 3-3.5 cm. long.
Type locality: San Miguelito, San Luis Potosi. Distribution: San Luis Potosi and Hidalgo.
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bibliographic citation
Per Axel Rydberg. 1913. ROSACEAE (pars). North American flora. vol 22(5). New York Botanical Garden, New York, NY
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Comprehensive Description

provided by North American Flora
Cercocarpus rotundifolius Rydberg, sp. nov
A shrub with dark-brown bark and villous young twigs; petioles 2-3 mm. long; leaf-blades broadly rounded-oval or nearly orbicular, dentate above the middle, thin, dark-green and sparingly pilose or soon glabrous above, softly villous beneath, 1-3 (rarely 4) cm. long; lateral veins 4-6 on each side; teeth broadly triangular, mucronateacute; flowers 2 or 3 together; tube of the hypanthium densely villous, about 7 mm. long; limb turbinate, together with the sepals 6-7 mm. broad, villous without; achenes about 1 cm. long; style in fruit 6-7 cm. long.
Type collected in Los Angeles County, southern California, March, 1901, Geo. B. Grant 3488 (herb. N. Y. Bot. Gard.).
Distribution: Southern California and Lower California.
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cc-by-nc-sa-3.0
bibliographic citation
Per Axel Rydberg. 1913. ROSACEAE (pars). North American flora. vol 22(5). New York Botanical Garden, New York, NY
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North American Flora

Comprehensive Description

provided by North American Flora
Cercocarpus betuloides Nutt.; T. & G. Fl. N
Am. 1: 427. Je 1840.
Cercocarpus belulaefolius Nutt.; Hook. Ic. pi. 322. O 1840.
Cercocarpus parvifolius glaber S. Wats. Bot. Calif. 1: 175. 1876.
Cercocarpus parvifolius betuloides Sargent, Silva 4: 66. 1892.
Cercocarpus betulaefolius typicus f. glabrescens C. K. Schneid. Handb. Laubh. 1: 531. 1905. A tree 3-10 m. high, with smooth bark, separating into scales falling off in the autumn; branches glabrous or nearly so; petioles 2-4 mm. long, appressed-hairy or glabrate; leaf-blades obovate or oval, 1.5-5 cm. long, 1-2.5 cm. wide, crenate-serrate above the middle with short teeth, rounded at the apex, cuneate at the base, sparingly appressed-hairy when young, soon glabrate, dark-green above, paler beneath, comparatively thin; lateral veins 5 or 6 on each side, not very thick beneath; tube of the hypanthium 8-10 mm. long, silky-strigose ; limb turbinate, silky-strigose without, glabrous within, together with the sepals 6 mm. broad; sepals broadly triangular, obtuse; stamens rather numerous; achenes 10-12 mm. long; style in fruit 6-7 cm. long.
Type locality: Santa Barbara, California.
Distribution: Central and southern California near the coast; Lower California.
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cc-by-nc-sa-3.0
bibliographic citation
Per Axel Rydberg. 1913. ROSACEAE (pars). North American flora. vol 22(5). New York Botanical Garden, New York, NY
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North American Flora

Cercocarpus betuloides

provided by wikipedia EN

Cercocarpus betuloides is a shrub or small tree in the rose family.[2] Its common names include mountain mahogany and birch leaf mountain mahogany[2][3] The common name "mahogany" comes from the hardness and color of the wood, although the genus is not a true mahogany.[2]

Range and habitat

The plant is native to California, Baja California, Oregon, Arizona, and northwestern New Mexico.[4] It typically grows in summer dry areas of the foothills and mountains of California, often in chaparral communities.[2]

Description

Growth pattern

Cercocarpus betuloides is a shrub or small tree growing from 3 feet (0.91 m) to 30 feet (9.1 m).[2][5] Its branches are incised and muscular in appearance from the side. In cross section they appear lobed.

Common shrub associates within the chaparral community include toyon.[6]

Leaves and stems

The leaves are distinctive in that they have smooth edges from the base to about half way up, then are wavy or toothed to the rounded tip.[2]

Betula is the birch genus, and the species name refers to the birch-like leaves.[2]

Inflorescence and fruit

The white flowers are small, clustered, and mildly scented, similar to acacia.[2]

The fruit is a tubular achene with the long, plumelike flower style still attached.

The genus name comes from the Greek kerkos ("tail"), referring to the tail-like appearance of the fruit; and carpus ("fruit"), thus, "fruit with tail".

Taxonomy

Varieties

There are three varieties:[7][8]

  • Cercocarpus betuloides var. betuloides, rangewide
  • Cercocarpus betuloides var. blancheaeCatalina mahogany, island mountain mahogany, limited to California, especially the Channel Islands[9][10]
  • Cercocarpus betuloides var. macrourusfew flowered mountain mahogany, California and Oregon[11][12]

Cercocarpus betuloides is sometimes treated as a part of Cercocarpus montanus,[13] var. glaber in particular.[14]

Uses

Deer, cattle and sheep browse the plant.[15]

The reddish wood of the shrub is very hard and was traditionally used by the indigenous peoples of California to make arrow tips, fishing spears, and digging sticks.[2]

Cercocarpus betuloides is cultivated as an ornamental plant by specialty nurseries for planting in native plant, drought tolerant, and wildlife gardens; and in designed natural landscaping projects and habitat restoration programs.[16][17]

References

  1. ^ The Plant List, Cercocarpus montanus var. glaber (S.Watson) F.L.Martin
  2. ^ a b c d e f g h i Flowering Plants of the Santa Monica Mountains, Nancy Dale,2nd Ed, 2000, p. 170
  3. ^ Calflora taxon report, University of California, Cercocarpus betuloides Torrey & A. GrayMountain mahogany, birch leaf mountain mahogany . accessed 2.28.2015
  4. ^ Biota of North America Program 2014 county distribution map
  5. ^ Abrams, L. (1951). Illustrated Flora of the Pacific States. Stanford University Press. 874 pages ISBN 0-8047-0004-4
  6. ^ Hogan, C. M. (2008). Toyon (Heteromeles arbutifolia). Archived July 19, 2009, at the Wayback Machine GlobalTwitcher, ed. N. Stromberg.
  7. ^ "Cercocarpus betuloides". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 16 January 2018.
  8. ^ Cercocarpus betuloides. CalFlora.
  9. ^ Cercocarpus betuloides var. blancheae. The Jepson Manual, 2012.
  10. ^ Cercocarpus betuloides var. blancheae. CalFlora.
  11. ^ Cercocarpus betuloides var. macrourus. The Jepson Manual, 2012.
  12. ^ Cercocarpus betuloides var. macrourus. CalFlora.
  13. ^ Cercocarpus montanus. NatureServe. 2012.
  14. ^ Cercocarpus montanus var. glaber. USDA PLANTS . accessed 2.28.2015
  15. ^ Whitney, Stephen (1985). Western Forests (The Audubon Society Nature Guides). New York: Knopf. p. 388. ISBN 0-394-73127-1.
  16. ^ Las Pilitas Horticulture Database: Cercocarpus betuloides (Mountain Mahogany) . accessed 2.28.2015
  17. ^ Lady Bird Johnson Wildflower Center Native Plant Information Network−NPIN: Cercocarpus montanus var. glaber (Smooth mountain mahogany) . accessed 2.28.2015

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Cercocarpus betuloides: Brief Summary

provided by wikipedia EN

Cercocarpus betuloides is a shrub or small tree in the rose family. Its common names include mountain mahogany and birch leaf mountain mahogany The common name "mahogany" comes from the hardness and color of the wood, although the genus is not a true mahogany.

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Wikipedia authors and editors
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