Table 1.

Description of seedlings used in dormancy trials.

Species	Common name	Years of data	Nursery lots (Sold as suitable for or collected from)
Abies amabilis	Pacific silver fir	1	PC10-479 (Elochman 0–457 m)
Abies grandis	Grand fir	2	PU10-588 (Upper Chehalis 0 = 305 m)
Abies procera	Noble fir	2	PU09-375 (Lewis, 0–1219 m)
Arbutus menziesii	Pacific madrone	2	Warm group: LA5 (Los Altos, CA); LA13 (Los Altos, CA); SA7 (Santa Cruz, CA). Cool group: BC6 (Nanaimo, BC); FB3 (Anacortes, WA); SN1 (Sierra Nevada, CA)
Larix laricina	Western larch	2	PU10-605 (Pend Oreille, 610–914 m)
Thuja plicata	Western redcedar	2	PU10-602 (Twin Harbors, 0–610 m); PU10-611 (Puget Sound, 0–610 m); OL10-510 (Puget Sound 610–1219 m)
Tsuga heterophylla	Western hemlock	2	OL10-507 (Hoh 366–732 m); WA coast 0–610 m)
Pinus contorta	Lodgepole pine	2	PU09-391 (Twin Harbors, 0–305 m); PU10-590 (Cowlitz 914–1210 m)
Pinus monticola	Western white pine	2	SE10-489 (Lower Columbia, 0–2743 m); SP10-486 (Lower Columbia 0–2743 m)
Pinus ponderosa	Ponderosa pine	1	NE10-533 (Kettle, 914–1219 m)
Pseudotsuga menziesii	Douglas-fir	2	3 o.p. families: 44.623°N, −123.546°W, 244 m; 47.181°N, −123.560°W, 61 m; 43.027°N, −122.871°W, 877 m; added to data from (Gould et al., 2011) with > 100 o.p. families

Nursery lots were bulk collections; o.p. lots were seeds collected from open-pollinated cones collected from one tree.