The Jepson Manual: Higher Plants of California
THIS PAGE IS NO LONGER UPDATED
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Up-to-date information about California vascular plants is available from the
Jepson eFlora
.
Names are linked to treatments from the Manual
Key to TSUGA
N.B.: couplets are linked, e.g., 1. is linked to 1'.
1.
Leaves ± 2-ranked, grooved on upper surface, with 2 whitish bands on lower; seed cone 1.2–2.5 cm
T. heterophylla
1'
Leaves not 2-ranked, more crowded above twig, rounded on upper surface, glaucous and with whitish bands on both; seed cone 3–7.5 cm
T. mertensiana
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