... the mere presence of old trees does not automatically indicate old- growth conditions (see Chap. 2 by Wirth et al., this volume), it is fair to saythat many old- growth forests contain a high ... Nevada, California, USA 1 ,66 6Pinus flexilis South Park, Colorado, USA 1 ,66 1Thuja occidentalis Ontario, Canada 1 ,65 3Pinus balfouriana Sierra Nevada, California, USA 1 ,64 9Taxodium distichum Bladen ... are generally shorter-lived than trees (Schweingruber 1995) and dwarf-shrubs(see below). The oldest known shrub s grow in Siberia. Hantemirov et al. (2003)found an 840-year -old Juniperus sibirica....