ID	ModifiedOn	Contributors	InformalClassification	Family	TaxonID	TaxonName	SeeAlso	NameRank	Hybrid	TerminalTaxon	Excluded	Peripheral	Waif	Endemic	Extirpated	OriginCode	Origin	Distribution	Voucher	Comments
208	2018-05-02 22:04:00		Vascular Plants: Gymnosperms	Pinaceae	35178	Abies		genus		N	N	N	N	N	N	N	Native			
209	2023-04-13 07:42:25		Vascular Plants: Gymnosperms	Pinaceae	35180	Abies amabilis		species		Y	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
210	2025-12-05 01:00:26		Vascular Plants: Gymnosperms	Pinaceae	35202	Abies grandis		species		Y	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	FNA2: "Abies grandis is rather uniform morphologically and chemically. At its southern limit in southern Oregon and northern California, it introgresses with A . concolor (J.L. Hamrick and W.J. Libby 1972; E.Zavarin et al. 1975; D.B. Zobel 1973). In the area of introgression, specimens in lower, wetter habitats are best assigned to A . grandis ; those in higher, drier habitats, to A . concolor . Others are best considered to be A . concolor × grandis."
211	2025-12-05 01:04:58		Vascular Plants: Gymnosperms	Pinaceae	35212	Abies lasiocarpa		species		N	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	FNA2: "The only unique populations in this species come from coastal Alaska (A. S. Harris 1965; C. J. Heusser 1954). They are found at lower elevations (0–900 m) and appear to be isolated with no reported introgression between them and the coastal mountain populations. The population on the Prince of Wales Island has distinct terpene patterns and needs morphological and developmental studies to see if these patterns contrast with neighboring populations.<br><br> Through central British Columbia and northern Washington, Abies lasiocarpa introgresses with A. bifolia. These trees may have morphologic features resembling either species and may have intermediate terpene patterns; they are best classified as interior subalpine fir (A. bifolia × lasiocarpa). At the southern end of its range, A. lasiocarpa possibly hybridizes with A. procera (R.S. Hunt and E.von Rudloff 1979). Abies lasiocarpa shares with A. procera a red periderm, crystals in the ray parenchyma (R.W. Kennedy et al. 1968), and reflexed tips of the bracts, features not shared with A. bifolia.<br><br> Abies lasiocarpa usually exists in small stands at high elevations and is not often observed. Its differences in comparison to A. bifolia have prompted studies (W.H. Parker et al. 1979) to see if it is A. bifolia introgressed with the sympatric A. amabilis. Abies lasiocarpa and A. amabilis, however, are separated by many morphologic features, and no hybrids have been found (W.H. Parker et al. 1979)."
212	2023-04-13 07:55:42		Vascular Plants: Gymnosperms	Pinaceae	35220	Abies lasiocarpa ssp. bifolia		infraspecies		Y	N	N	N	N	N	N	Native	Occurring east of the Cascades crest in northeastern Washington;		
213	2023-04-13 07:58:14		Vascular Plants: Gymnosperms	Pinaceae	35222	Abies lasiocarpa ssp. lasiocarpa		infraspecies		Y	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
214	2023-04-13 07:33:13		Vascular Plants: Gymnosperms	Pinaceae	35227	Abies procera		species		Y	N	N	N	N	N	N	Native	Occurring chiefly west of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
215	2018-05-02 22:04:00		Vascular Plants: Gymnosperms	Pinaceae	35239	Larix		genus		N	N	N	N	N	N	N	Native			
216	2023-04-13 07:14:41		Vascular Plants: Gymnosperms	Pinaceae	35251	Larix lyallii		species		Y	N	N	N	N	N	N	Native	Occurring chiefly east of the Cascades crest in Washington;	{"Herbarium":"WTU"}	FNA2: "Larix lyallii and L . occidentalis ( Larix sect. Multiseriales ) are similar morphologically and have similar geographic ranges. Just how closely the two species are related has not been determined, but they probably originated from a common ancestor resembling L . potaninii Batalin. Although the geographic ranges of the two species overlap considerably, elevational differences of 150 to 300m usually separate them. Some morphologically intermediate specimens have been collected from Washington and Montana.<br>Because of its restricted distribution and growth at timberline, alpine larch has no commercial importance; it is often dwarfed and misshapen."
217	2026-03-07 17:40:29		Vascular Plants: Gymnosperms	Pinaceae	35252	Larix lyallii × Larix occidentalis		species	unnamed	Y	N	N	N	N	N	N	Native	Occurring east of the Cascades crest in Washington;		FnA2: " Larix lyallii and L . occidentalis ( Larix sect. Multiseriales ) are similar morphologically and have similar geographic ranges. Just how closely the two species are related has not been determined, but they probably originated from a common ancestor resembling L . potaninii Batalin. Although the geographic ranges of the two species overlap considerably, elevational differences of 150 to 300m usually separate them. Some morphologically intermediate specimens have been collected from Washington and Montana."
218	2021-04-27 08:43:45		Vascular Plants: Gymnosperms	Pinaceae	35254	Larix occidentalis		species		Y	N	N	N	N	N	N	Native	Occurring chiefly east of the Cascades crest in Washington;	{"Herbarium":"WTU"}	FNA2: "Western larch, when forest grown, is usually branch-free over most of its height. This is one of the most valuable timber-producing species in western North America. Its wood is made into framing, railway ties, pilings, exterior and interior finishing work, and pulp. In some localities it is the preferred firewood."
219	2018-05-02 22:04:00		Vascular Plants: Gymnosperms	Pinaceae	35256	Picea		genus		N	N	N	N	N	N	N	Native			
220	2018-08-15 09:36:00		Vascular Plants: Gymnosperms	Pinaceae	35261	Picea albertiana		species	Named	Y	N	Y	N	N	N	N	Native			
221	2023-04-13 11:13:30		Vascular Plants: Gymnosperms	Pinaceae	35268	Picea engelmannii		species		N	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
222	2023-04-13 11:20:04		Vascular Plants: Gymnosperms	Pinaceae	35271	Picea engelmannii var. engelmannii		infraspecies		Y	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
223	2012-09-12 13:35:00	David Giblin	Vascular Plants: Gymnosperms	Pinaceae	35281	Picea glauca	Picea albertiana	species		Y	Y	N	N	N	N				{"Herbarium":"WTU"}	Recently collected on 2012 Foray in Pend Oreille County, WA.<br><br>FNA2: "In areas of sympatry Picea glauca and P . engelmannii regularly hybridize and intergrade completely (R.Daubenmire 1974; E.H. Garman 1957; K.W. Horton 1959; L.Roche 1969; T.M.C. Taylor 1959). This has greatly complicated the taxonomy of P . glauca , a dominant tree of interior forests of Canada and Alaska. Three varieties have been recognized. Picea glauca var. albertiana was described as having unusually prominent leaf bases, cones nearly as broad as long, cone scales acute and broader than long, and an unusually narrow crown. These are common characteristics of hybrids (e.g., R.Daubenmire 1974). Picea glauca var. porsildii was described as differing from the type variety by having smooth bark with resin blisters, short angular cone scales, an unusually broad crown, and pubescent twigs. These characteristics, also largely intermediate between those of P . glauca var. glauca and P . engelmannii , may reflect hybridization where the species overlap. Although the two varieties noted above are reported from well beyond the range of sympatry, the diagnostic characteristics are not well correlated and occur rather sporadically. Also the most distinctive feature of the varieties, the crown shape, is in part responsive to competitive pressures. Because of the problems of hybridization and sporadic occurrence of key characters, P . glauca is treated here in the broad sense."
224	2020-05-10 16:33:05		Vascular Plants: Gymnosperms	Pinaceae	35307	Picea sitchensis		species		Y	N	N	N	N	N	N	Native	Occurring west of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
225	2003-10-21 00:00:00	Peter F. Zika	Vascular Plants: Gymnosperms	Pinaceae	35311	Pinaceae		family		N	N	N	N	N	N	N	Native			
226	2018-05-02 22:04:00		Vascular Plants: Gymnosperms	Pinaceae	35314	Pinus		genus		N	N	N	N	N	N	N	Native			
227	2023-04-13 11:32:55		Vascular Plants: Gymnosperms	Pinaceae	35317	Pinus albicaulis		species		Y	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
228	2020-07-25 21:11:58		Vascular Plants: Gymnosperms	Pinaceae	35350	Pinus contorta		species		N	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
229	2020-07-25 21:14:12		Vascular Plants: Gymnosperms	Pinaceae	35355	Pinus contorta var. contorta		infraspecies		Y	N	N	N	N	N	N	Native	Occurring west of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
230	2020-07-25 21:18:18		Vascular Plants: Gymnosperms	Pinaceae	35357	Pinus contorta var. latifolia		infraspecies		Y	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	FNA2: "Pinus contorta var. latifolia is fire successional. It is the most wide-ranging and commercially utilized variety. Its poor self-pruning character makes it less desirable for lumber but adequate for mine timbers, fences, and pulpwood."
232	2023-04-13 11:37:47		Vascular Plants: Gymnosperms	Pinaceae	35422	Pinus monticola		species		Y	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
233	2020-05-17 20:47:43		Vascular Plants: Gymnosperms	Pinaceae	35451	Pinus pinaster		species		Y	Y	N	Y	N	N	I	Introduced			This species is known in Washington only from cultivated settings.  It is not considered naturalized in the flora.
234	2020-05-09 07:57:38		Vascular Plants: Gymnosperms	Pinaceae	35453	Pinus ponderosa		species		N	N	N	N	N	N	N	Native	Occurring mostly east of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
235	2020-05-09 08:01:48		Vascular Plants: Gymnosperms	Pinaceae	35461	Pinus ponderosa var. ponderosa		infraspecies		Y	N	N	N	N	N	N	Native	Occurring chiefly east of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
236	2018-05-02 22:04:00		Vascular Plants: Gymnosperms	Pinaceae	35517	Pseudotsuga		genus		N	N	N	N	N	N	N	Native			
237	2020-04-21 10:43:50		Vascular Plants: Gymnosperms	Pinaceae	35528	Pseudotsuga menziesii		species		N	N	N	N	N	N	N	Native	Widely distributed in forested areas on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
238	2020-04-21 10:50:24		Vascular Plants: Gymnosperms	Pinaceae	35534	Pseudotsuga menziesii var. glauca		infraspecies		Y	N	N	N	N	N	N	Native	Occurring from Okanogan County to the eastern counties in Washington;	{"Herbarium":"WTU"}	
239	2020-04-21 11:26:11		Vascular Plants: Gymnosperms	Pinaceae	35538	Pseudotsuga menziesii var. menziesii		infraspecies		Y	N	N	N	N	N	N	Native	Occurring from the Pacific coast to the east base of the Cascades in Washington.	{"Herbarium":"WTU"}	
240	2018-05-02 22:04:00		Vascular Plants: Gymnosperms	Pinaceae	35541	Tsuga		genus		N	N	N	N	N	N	N	Native			
241	2023-04-13 12:06:06		Vascular Plants: Gymnosperms	Pinaceae	35546	Tsuga heterophylla		species		Y	N	N	N	N	N	N	Native	Occurring chiefly west of the Cascades crest and in the northeast counties in Washington;	{"Herbarium":"WTU"}	FNA2: "Tsuga × jeffreyi (Henry) Henry was described from southwestern British Columbia and western Washington as a hybrid between T . heterophylla and T . mertensiana . Hybridization is rare, if it occurs at all, and it is therefore of little consequence (R.J. Taylor 1972). At the upper elevational limits of its distribution and under stressful conditions, T . heterophylla tends to resemble T . mertensiana , e.g., leaves are less strictly 2-ranked and stomatal bands on the abaxial leaf surfaces are less conspicuous than at lower elevations."
242	2009-03-04 09:45:00	Peter F. Zika	Vascular Plants: Gymnosperms	Pinaceae	35548	Tsuga jeffreyi		species	Named	Y	N	N	N	N	N	N	Native		{"Herbarium":"WTU"}	FNA2: "Tsuga × jeffreyi (Henry) Henry was described from southwestern British Columbia and western Washington as a hybrid between T . heterophylla and T . mertensiana . Hybridization is rare, if it occurs at all, and it is therefore of little consequence (R.J. Taylor 1972). At the upper elevational limits of its distribution and under stressful conditions, T . heterophylla tends to resemble T . mertensiana , e.g., leaves are less strictly 2-ranked and stomatal bands on the abaxial leaf surfaces are less conspicuous than at lower elevations."
243	2023-04-13 12:10:52		Vascular Plants: Gymnosperms	Pinaceae	35560	Tsuga mertensiana		species		Y	N	N	N	N	N	N	Native	Occurring on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	FNA2: "M.Van Campo-Duplan and H.Gaussen (1948) postulated that this taxon originated by hybridization between Picea and Tsuga . Although this is unlikely, some characteristics such as leaf arrangement and shape, phenolic chemistry, and pollen grain structure lend some support for this hypothesis."
