Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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James R. Griffin

Tree or shrub, monoecious, evergreen
Stem: young crown conic, old crown variable; bark fibrous, reddish; twigs not grooved, persistent or deciduous
Leaves simple, alternate, not in bundles, linear or awl-like (sometimes both on 1 plant), decurrent; tip acute
Seed cone generally woody; scales peltate, fused with bracts, generally persistent
Seeds 2–9 per scale; wings lateral
Genera in family: 10 genera, 16 species: North America, Asia, Tasmania; many of great commercial value
Reference: [Eckenwalder 1976 Madroño 23:237–256]
Combination with Cupressaceae supportable.



Species in genus: 1 sp.: w North America
Etymology: (Sequoyah, Cherokee chief, ± 1770–1843)


S. sempervirens (D. Don) Endl.

Plant generally sprouting vigorously from base if cut, from entire crown if burned
Stem: trunk < 115 m, < 3.8 m wide; old crown ± cylindric, generally unbranched in lower half; bark < 30 cm thick near base; twigs persistent < 4 years
Leaf remaining green < 3 years, persistent < 4
Seed cone 15–30 mm, ± spheric, maturing in 1 year, persistent < 2
Chromosomes: n=33
Ecology: Redwood forest
Elevation: < 1100 m.
Bioregional distribution: North Coast, w Klamath Ranges, Outer North Coast Ranges, w Inner North Coast Ranges, Central Coast, San Francisco Bay Area, n Outer South Coast Ranges
Distribution outside California: sw Oregon
Tallest trees in North America
Horticultural information: SUN: 4, 5, 6, 16, 17 &IRR: 7, 8, 9, 14, 15, 18, 19, 20, 21, 22, 23, 24: CVS.

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bioregional map for SEQUOIA%20sempervirens being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Sequoia sempervirens
Retrieve dichotomous key for Sequoia
Overlay Consortium of California Herbaria specimen data by county on this map
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