Acer glabrum Torr.
Family: Sapindaceae
Rocky Mountain maple,  more...
[Acer neo-mexicanum Greene]
Acer glabrum image
Max Licher  
Plant: tree; to 10 m high, essentially glabrous except for tomentose inner surface of bud scales; young twigs dark purplish-red to reddish-brown, the epidermis of older twigs flaking off in thin whitish sheets; buds covered with two valvate pink to red scales Leaves: deciduous, suborbicular in outline, 3-7 cm long, 3.5-9 cm wide, palmately 3-lobed (2 additional basal lobes sometimes present) or 3-foliolate, often a mixture of both types present, discolorous, the leaflets, when present, elliptic to subrhombic; apex of leaf and principal lobes or leaflets acute or obtuse; base cordate to obtusely cuneate, the base of leaflets cuneate to acuminate; petiole 1.5-9 cm long; margin coarsely serrate, the several teeth acute to acuminate INFLORESCENCE: corymbose Flowers: ca. 5 mm long, ca. 1.5 mm wide at base of perianth, the perianth greenish-yellow, with 10 sublinear segments ca. 4 mm long, the receptacle obconic; inflorescence corymbose, ca. 1.5 cm long, the pedicels 0.2-0.5 cm long Fruit: samaras 2-2.3 cm long, the wing ca. 1 cm wide Misc: In conifer forests, especially along streams; 2100-2900 m (7000-9500 ft);; May (retaining fruits until Aug and Sep) REFERENCES: Landrum, Leslie R. 1995. Aceraceae. J. Ariz. - Nev. Acad. Sci. 29(1): 2, 2-3.
Landrum 1995, Kearney and Peebles 1969
Common Name: Rocky Mountain maple Duration: Perennial Nativity: Native Lifeform: Tree Wetland Status: FAC General: Shrubs or trees up to 10 m, with smooth, gray bark. Leaves: Leaves bright green, thin, glabrous, and palmately divided, with deeply-toothed margins, coarsely serrate, 3-7 cm long, 3.5-9 cm wide, on petiole 1.5-9 cm long. Flowers: Corymbose clusters of bright green flowers about 1.5 cm long, flowers about 5 mm long, 1.5 mm wide at base, on pedicels 2-5 mm long. Fruits: Fruit a winged samara, having 2 wings, pinkish-rose when young, turning to white or light tan when mature, about 2 cm long and about 1 cm wide. Ecology: Found in deep, rich soils in coniferous forests from 7,000-9,000 ft (2134-2743 m); flowers May-June. Notes: There are 3 reported varieties in Arizona, differentiated mostly by the location in which they occur. Landrum 1995 suggest most populations are transitional between var. glabrum and var. neomexicanum, var. diffusum is the third variety and is found in northwest Arizona. Ethnobotany: Decoction of bark taken as a cathartic, to reduce nausea, infusion of branches taken for swelling, to heal women's insides, and snakebites. Dried leaves used to spice stored meat. Wood used for buildings, snowshoes, cradles, bows, and other tools. Etymology: Acer is the classical Latin name for the maple genus, glabrum means smooth or hairless. Synonyms: None Editor: LCrumbacher, 2011
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Max Licher  
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Max Licher  
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Sherel Goodrich  
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Sherel Goodrich  
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Sherel Goodrich  
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Max Licher  
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Max Licher  
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L.R. Landrum  
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Flesch, A.D.  
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Flesch, A.D.  
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Mona Terwedow  
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Sky Jacobs  
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Mona Terwedow  
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Stephanie Harvey  
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Mona Terwedow  
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Stephanie Harvey  
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Mona Terwedow  
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Mona Terwedow  
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Stephanie Harvey  
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