Hansen's Northwest Native Plant Database

 

Celebrating The Corps of Discovery Expedition Bicentennial

Originally Published September 14, 2003

Botanical Discoveries: Western Larch (Larix occidentalis)

Idaho's Bitterroot Mountains, September 16, 1805

Western Larch (Larix occidentalis) is a fast growing, deciduous conifer that can reach 150 ft. It has tufts of soft green needles on short shoots. Bright green in the spring, the needles turn yellow in Fall. Likes rich, light moist soil. Interesting tree for most gardens with great impact with it's tall, slender form that is narrow, rather than wide.

We will probably offer this tree in bare root form--watch our home page for announcement when the bare root sale catalog is available. Though not included in our Fall Sale, you will find many other trees and shrubs (and bulbs/rhizomes) that were collected by Lewis and Clark.

Specimen collected by J.H. Sandberg at Lake Waha, Nez Perces County, Idaho on May 20, 1892

Photo from Smithsonian National Museum of Natural History

The Expedition's Journey Continues:

A cloudy morning. Set out very early. The river wide, and shallow; the bottom narrow, and the river crowded with sand bars. Passed the island on which we lay, at one mile. Passed three islands-one on the L.S., and two on the S.S. Opposite the island on the L.S., I saw a village of barking squirrels [prairie dogs], 970 yards long and 800 yards wide, situated on a gentle slope of a hill. Those animals are numerous. I killed four, with a view to have their skins stuffed.

Here, the man who left us with the horses, 22 [16] days ago, George Shannon-he started 26th August, and has been ahead ever since-joined us, nearly starved to death. He had been twelve days without anything to eat but grapes and one rabbit, which he killed by shooting a piece of hard stick in place of a ball. This man, supposing the boat to be ahead, pushed on as long as he could. When he became weak and feeble, determined to lay by and wait for a trading boat, which is expected, keeping one horse for the last recourse. Thus a man had like to have starved to death in a land of plenty for the want of bullets or something to kill his meat.

We camped on the L.S., above the mouth of a run. A hard rain all the afternoon, and most of the night, with hard wind from the N.W. I walked on shore the fore part of this day, over some broken country, which continues about three miles back, and then is level and rich-all plains. I saw several foxes, and killed an elk and 2 deer, and squirrels. The men with me killed an elk, 2 deer, and a pelican. Captain Clark, 11 September 1804

Too bad Mr. Shannon had not learned the Native People's hunting methods!

This morning set out at an early hour and came to at 1/2 after 7 A.M. on the larboard shore 11/4 mile above the mouth of a small creek which we named Corvus, in consequence of having killed a beautiful bird of that genus near it. We concluded to lay by at this place the balance of this day and the next, in order to dry our baggage, which was wet by the heavy showers of rain which had fallen within the last three days, and also to lighten the boat by transferring a part of her lading to the red pirogue, which we now determined to take on with us to our winter residence, wherever that might be. While some of the men were employed in the necessary labor, others were dressing skins, washing and mending their clothes, &c.

Captain Clark and myself killed each a buck immediately on landing, near our encampment. The deer were very gentle and in great numbers in this bottom, which had more timber on it than any part of the river we had seen for many days past, consisting of cottonwood, elm, some different ash, and a considerable quantity of a small species of white oak,   which was loaded with acorns of an excellent flavor, having very little of the bitter roughness of the nuts of most species of oak.

The leaf of this oak is small, pale green, and deeply indented. It seldom rises higher than thirty feet, is much branched; the bark is rough and thick, and of a light color. The cup which contains the acorn is fringed on its edges, and embraces the nut about one-half. The acorns were now falling, and we concluded that the number of deer which we saw here had been induced thither by the acorns, of which they are remarkably fond. Almost every species of wild game is fond of the acorn-the buffalo, elk, deer, bear, turkeys, ducks, pigeons, and even the wolves feed on them. [The only oak documented by the expedition was the Oregon White Oak, Quercus garryana which grows to 90 feet, though very slowly.]

We sent three hunters out who soon added eight deer and two buffalo to our stock of provisions. The buffalo were so poor that we took only the tongues, skins, and marrow bones. The skins were particularly acceptable as we were in want of a covering for the large pirogue to secure the baggage.

Captain Lewis, 16 September 1804

Having for many days past confined myself to the boat, I determined to devote this day to amusing myself on shore with my gun, and view the interior of the country lying between the river and the Corvus Creek. Accordingly, before sunrise, I set out with six of my best hunters, two of whom I dispatched to the lower side of Corvus Creek, two with orders to hunt the bottoms and woodland on the river, while I retained two others to accompany me in the intermediate country.

One quarter of a mile in rear of our camp, which was situated in a fine open grove of cottonwood, passed a grove of plum trees, loaded with fruit and now ripe. Observed but little difference between this fruit and that of a similar kind common to the Atlantic states. The trees are smaller and more thickly set. This forest of plum trees garnish a plain about 20 feet more elevated than that on which we were encamped. [Possibly Indian Plum, Oemlaria cerasiformis. This plant apparently not documented or collected by expedition, at least no record remains.]

This plain extends back about a mile to the foot of the hills one mile distant, and to which it is gradually ascending. This plain extends with the same breadth from the creek below to the distance of nearly three miles above, parallel with the river, and it is entirely occupied by the burrows of the barking squirrel heretofore described. This animal appears here in infinite numbers. And the shortness and verdure of grass gave the plain the appearance, throughout its whole extent, of beautiful bowling green in fine order. Its aspect is S.E. A great number of wolves of the small kind, hawks and some polecats were to be seen. I presume that those animals feed on this squirrel. Found the country in every direction, for about three miles, intersected with deep ravines and steep irregular hills 100 to 200 feet high. At the tops of these hills, the country breaks off as usual into a fine level plain extending as far as the eye can reach. From this plain I had an extensive view of the river below, and the irregular hills which border the opposite sides of the river and creek.

The surrounding country had been burnt about a month before, and young grass had now sprung up to a height of 4 inches, presenting the live green of the spring; to the west a high range of hills stretch across the country from N. to S., and appeared distant about 20 miles. They are not very extensive, as I could plainly observe their rise and termination. No rock appeared on them, and the sides were covered with verdure similar to that of the plains. This scenery, already rich, pleasing, and beautiful, was still further heightened by immense herds of buffalo, deer, elk, and antelopes, which we saw in every direction, feeding on the hills and plains. I do not think I exaggerate when I estimate the number of buffalo which could be comprehended at one view to amount to 3,000. My object was, if possible, to kill a female antelope, having already procured a male. I pursued my route on this plain to the west, flanked by my two hunters, until eight in the morning, when I made the signal for them to come to me, which they did shortly after.

We rested ourselves about half an hour, and regaled ourselves on half a biscuit each, and some jerks of elk, which we had taken the precaution to put in our pouches in the morning before we set out, and drank of the water of a small pool, which had collected on the plain from the rains which had fallen some days before. We had now, after various windings in pursuit of several herds of antelope which we had seen on our way, made the distance of about eight miles from our camp.

We found the antelope extremely shy and watchful, insomuch that we had been unable to get a shot at them. When at rest they generally select the most elevated point in the neighborhood, and as they are watchful and extremely quick of sight, and their sense of smelling very acute, it is almost impossible to approach them within gunshot. In short, they will frequently discover, and flee from, you at the distance of three miles.

I had this day an opportunity of witnessing the agility and the superior fleetness of this animal which was to me really astonishing. I had pursued and twice surprised a small herd of seven. In the first instance they did not discover me distinctly, and therefore did not run at full speed, though they took care before they rested to gain an elevated point where it was impossible to approach them under cover, except in one direction, and that happened to be in the direction from which the wind blew toward them. Bad as the chance to approach them was, I made the best of my way toward them, frequently peeping over the ridge with which I took care to conceal myself from their view. The male, of which there was but one, frequently encircled the summit of the hill on which the females stood in a group, as if to look out for the approach of danger. I got within about 200 paces of them when they smelled me and fled. I gained the top of the eminence on which they stood as soon as possible, from whence I had an extensive view of the country. The antelopes, which had disappeared in a steep ravine, now appeared at the distance of about three miles on the side of a ridge which passed obliquely across me, and extended about four miles.

So soon had these antelopes gained the distance at which they had again appeared to my view, I doubted at first that they were the same that I had just surprised, but my doubts soon vanished when I beheld the rapidity of their flight along the ridge before me. It appeared rather the rapid flight of birds than the motion of quadrupeds. I think I can safely venture the assertion that the speed of this animal is equal, if not superior, to that of the finest blooded courser.

Captain Lewis, 17 September 1804

It's inspiring to read these journals and have a glimpse of the excitement that comes with discovering new things in our world!

Go to our Corps of Discovery Expedition Bicentennial Index page to see all links in this series. Or click here to go directly to the next installment of our journey.

Bringing history alive:
This drawing of Dog Town or Settlement of Prairie Dogs from the book, Commerce of the Prairies: or, The journal of a Santa Fe trader, 1831-1839 by Joshua Gregg
This photo of Prairie Dogs kissing was taken by Brocken Inaglory.
Prairie Dog family, photo by Mathae at the Budapest Zoo in 2005
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