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    Author(s): Nancy L. Shaw; Marshall R. Haferkamp; Emerenciana G. Hurd
    Date: 2008
    Source: In: Bonner, Franklin T.; Karrfalt, Robert P., eds. The Woody Plant Seed Manual. Agric. Handbook No. 727. Washington, DC. U.S. Department of Agriculture, Forest Service. p. 567-572.
    Publication Series: Agricultural Handbook
    Station: Washington Office
    PDF: View PDF  (229.0 KB)

    Description

    The genus Grayia Hook. & Arn., named for the American botanist Asa Gray, contains a single species - spiny hopsage (table 1). Plants are erect to rounded, summer-deciduous shrubs 0.3 to 1.2 (1.5) m tall. Branches are divergent and thorn-tipped, with whitish gray to brownish bark that exfoliates in long strips. Leaves are gray-green, alternate, entire, and fleshy, sometimes turning bright red before abscising. Pubescence of young twigs and leaves consists of simple or stellate hairs. Prominent globose, gray-green overwintering leaf buds develop prior to summer leaf fall.

    Publication Notes

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    Citation

    Shaw, Nancy L.; Haferkamp, Marshall R.; Hurd, Emerenciana G. 2008. Grayia spinosa (Hook.) Moq.: spiny hopsage. In: Bonner, Franklin T.; Karrfalt, Robert P., eds. The Woody Plant Seed Manual. Agric. Handbook No. 727. Washington, DC. U.S. Department of Agriculture, Forest Service. p. 567-572.

    Keywords

    Grayia spinosa (Hook.) Moq., spiny hopsage

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