Answers are grounded in this paper and cite their sources.
Tamarack (Larixlaricina (Du Roi) K. Koch) is a common constituent of the sub-Arctic forest some 175 km (108 miles) beyond the previously known range, extending across the continental divide in northern Yukon. It occurs on imperfectly to poorly drained mineral soils, often near the timber line, and on wet organic soils.
No takes yet. Share an insight, caveat, or question.
S. C. Zoltai (1973) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: