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2. Sequoiadendron J. Buchholz, Amer. J. Bot. 26: 536. 1939.
[Sequoia, generic name of coast redwood, and Greek dendros, tree]
Frank D. Watson
Trees giant, evergreen. Branchlets terete. Leaves alternate, radiating. Adult leaves mostly needlelike, triangular in cross section, somewhat divergent to strongly appressed; abaxial glands absent. Pollen cones with 12--20 sporophylls, each sporophyll with 2--5 pollen sacs. Seed cones maturing and opening in 2 years, persistent to 20 years, oblong; scales persistent, 25--45, valvate, ± peltate, thick and woody. Seeds 3--9 per scale, lenticular, subequally 2-winged; cotyledons (3--)4(--6). x = 11.
Species 1: only in the flora.
Lower Taxon
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