Flora of the Northwest Coast: Including the Area West of the Summit of the Cascade Mountains From the Forty-Ninth Parallel South to the Calapooia ... of Lane County, Oregon (Classic Reprint) - Tapa blanda

Excerpt from Flora of the Northwest Coast: Including the Area West of the Summit of the Cascade Mountains From the Forty-Ninth Parallel South to the Calapooia Mountains on the South Border of Lane County, Oregon

The region covered by this flora is that lying between the summit of the Cascade Mountains and the Pacific Ocean from the 49th parallel of latitude across the southern portion of Vancouver Island, south to the headwaters of the Willamette River or, more specifically, to the southern boundary of Lane County, Oregon, marked in part by the Calapooia Mountains. In the Umpqua Valley just south of these mountains, many California plants reach their northern limits; while in the Rogue River Valley, the next southward, the flora is predominantly Californian.

The northern boundary chosen is, from a botanical standpoint, purely artificial. Naturally, as marked by the northern limit of the characteristic lowland trees, it would extend to about latitude that is, nearly to the southernmost extremity of Alaska.

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