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Dates
To view larger images and descriptions, click on the plant name or a thumbnail image below.
Date Collected: Plant Name: Thumbnail Image:
1804 Jul 27
Bellevue, Neb.
Big Bluestem Grass (Andropogon gerardii) Big Bluestem Grass Tall Grass Prairie Big Bluestem Grass
1804 Sep 21
Big Bend of Missouri River, S.D.
Rubber Rabbitbrush (Ericameria nauseosa) Rubber Rabbitbrush Rubber Rabbitbrush Big Bend of Missouri River
1804 Oct 1
Above Centinel Creek, S.D.
Silver Sagebrush (Artemisia cana) Silver Sagebrush Bison and Silver Sagebrush
1804 Oct 2
Above Mouth of Cheyenne River, S.D.
Rubber Rabbitbrush (Ericameria nauseosa) Rubber Rabbitbrush Rubber Rabbitbrush Big Bend of Missouri River
1804 Oct 2
Above Mouth of Cheyenne River, S.D.
Silver Sagebrush (Artemisia cana) Silver Sagebrush Bison and Silver Sagebrush
1804 Nov 17
Fort Mandan, N.D.
Canada Columbine (Aquilegia canadensis) Canada Columbine Canada Columbine Canada Columbine
1805 Jun 6
Teton River, Mont.
Tansy (Tanacetum nuttallii) Tansy
1805 Aug 12, 15 or 26
Lemhi Pass, Mont. & Idaho
Lewis's Monkey Flower (Mimulus lewisii) Lewis's Monkey Flower Lewis's Monkey Flower Lewis's Monkey Flower Lewis's Monkey Flower
1805 Sep 12
Lolo Creek, Mont.
Lodgepole Pine (Pinus contorta) Lodgepole Pine Lodgepole Pine
1805 Nov 16
Mouth of Columbia River
Mountain Box or Mountain Lover (Paxistima myrsinites) Mountain Box or Mountain Lover
1806 Jan 20
Fort Clatsop, Ore.
Salal (Gaultheria shallon) Salal Salal Salal
1806 Mar 26
Longview, Wash.
Streambank Spring Beauty (Claytonia parviflora) Streambank Spring Beauty
1806 Mar 27
Mouth of Cowlitz River, Wash.
Salmonberry (Rubus spectabilis) Salmonberry Salmonberry
1806 Apr 10
Cascades of Columbia River, Ore.
Western Wake-Robin (Trillium ovatum) Western Wake-Robin Western Wake-Robin Western Wake-Robin Western Wake-Robin
1806 Apr 11
Cascades of Columbia River, Ore.
Shining Oregon Grape (Berberis aquifolium) Shining Oregon Grape Shining Oregon Grape
1806 Apr 14
Mouth of White Salmon River, Wash.
Arrowleaf Balsamroot (Balsamorhiza sagittata) Arrowleaf Balsamroot Arrowleaf Balsamroot Arrowleaf Balsamroot Arrowleaf Balsamroot Arrowleaf Balsamroot
1806 Apr 15
The Dalles, Ore.
Western Thimbleberry (Rubus parviflorus) Western Thimbleberry Western Thimbleberry Western Thimbleberry Western Thimbleberry
1806 Apr 17
The Dalles, Ore.
Big-Head Clover (Trifolium macrocephalum) Big-Head Clover Big-Head Clover
1806 Apr 17
The Dalles, Ore.
Narrow Leaf Collomia (Collomia linearis) Narrow Leaf Collomia Narrow Leaf Collomia
1806 May 6
Clearwater River near Potlatch River, Idaho
Nine Leaf Desert Parsley (Lomatium triternatum) Nine Leaf Desert Parsley
1806 May 6
Clearwater River near Potlatch River, Idaho
Purple Trillium (Trillium petiolatum) Purple Trillium Purple Trillium
1806 May 6
Clearwater River near Potlatch River, Idaho
Syringia or Mock Orange (Philadelphus lewisii) Syringia or Mock Orange
1806 Jun 5
Clearwater River near Kaimah, Idaho
Narrow Leaf Skullcap (Scutellaria angustifolia) Narrow Leaf Skullcap
1806 Jun 5
Clearwater River near Kaimah, Idaho
Silky Lupine (Lupinus sericeus) Silky Lupine Silky Lupine Silky Lupine Silky Lupine
1806 Jun 7
Clearwater River near Kaimah, Idaho
Scorpion Weed (Phacelia heterophylla) Scorpion Weed Scorpion Weed Scorpion Weed
1806 Jun 16
Eldorado Creek, Lolo Trail, Idaho
Bunchberry (Cornus canadensis) Bunchberry Bunchberry Bed Bunchberry Flower Bunchberry Fruit
1806 Jun 16
Hungry Creek, Lolo Trail, Idaho
Blue Bells (Mertensia paniculata) Blue Bells
1806 Jun 16
Hungry Creek, Lolo Trail, Idaho
Mountain Box or Mountain Lover (Paxistima myrsinites) Mountain Box or Mountain Lover
1806 Jun 16
Hungry Creek, Lolo Trail, Idaho
Sticky Currant (Ribes viscosissimum) Sticky Currant
1806 Jun 16
Hungry Creek, Lolo Trail, Idaho
Western Fairy Slipper (Calypso bulbosa) Western Fairy Slipper Western Fairy Slipper
1806 Jun 23
Weippe Prairie, Idaho
Common Camas (Camassia quamash) Common Camas Common Camas Common Camas Common Camas Common Camas
1806 Jul 1
Traveler's Rest Camp, Lolo Creek, Missoula County, Mont.
Bitterroot (Lewisia rediviva) and <br/>  Pygmy Bitterroot (Lewisia pygmaea) Bitterroot Bitterroot Pygmy Bitterroot Pygmy Bitterroot Bitterroot
1806 Jul 4
Blackfoot River, Mont.
Syringia or Mock Orange (Philadelphus lewisii) Syringia or Mock Orange
1806 Jul 7
Lewis & Clark Pass, Mont.
Arrowleaf Balsamroot (Balsamorhiza sagittata) Arrowleaf Balsamroot Arrowleaf Balsamroot Arrowleaf Balsamroot Arrowleaf Balsamroot Arrowleaf Balsamroot
1806 Jul 7
Lewis & Clark Pass, Mont.
Twinberry Honeysuckle or Bearberry Honeysuckle (Lonicera involucrata) Twinberry Honeysuckle or Bearberry Honeysuckle
1806 Jul 9
Sun River, near Simms, Mont.
Lewis's Blue Flax (Linum lewisii) Lewis's Blue Flax
[N/A – not collected by Lewis & Clark] Twinleaf (Jeffersonia diphylla) Twinleaf Twinleaf