familyCupressaceae
genusSequoiadendron
Show Lower Taxa
Sequoiadendron
Amer. J. Bot. 26: 536. 1939.
Etymology: Sequoia, generic name of coast redwood, and Greek dendros, tree
Treatment appears in FNA Volume 2.
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.
Distribution
Only in the flora.
Discussion
Species 1.
Selected References
None.