| Image |
Descriptor |
Description |
Photographer |
| 5358596 |
Biological Control |
Field collection of musk thistle plants (Carduus nutans) harboring the biological control weevil, Trichosirocalus horridus. |
L.L. Berry |
| 5358597 |
Control |
Landscape view of rangeland near Collbran, Colorado, three years after efforts to eradicate musk thistle. |
L.L. Berry |
| 5306090 |
Diagram or Graphic |
Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 554. |
USDA PLANTS Database |
| 5358658 |
Feature(s) |
Close-up view of the stems of musk thistle (Carduus nutans) showing spiny flanges, with a flower bud in the background. |
L.L. Berry |
| 1358309 |
Feature(s) |
Stem and foliage |
Mary Ellen (Mel) Harte |
| 1358310 |
Flower(s) |
|
Mary Ellen (Mel) Harte |
| 1358311 |
Flower(s) |
|
Mary Ellen (Mel) Harte |
| 1358312 |
Flower(s) |
|
Mary Ellen (Mel) Harte |
| 1358313 |
Flower(s) |
|
Mary Ellen (Mel) Harte |
| 1358314 |
Flower(s) |
|
Mary Ellen (Mel) Harte |
| 1382011 |
Flower(s) |
|
Ricky Layson |
| 1382012 |
Flower(s) |
|
Ricky Layson |
| 1382013 |
Flower(s) |
|
Ricky Layson |
| 1299082 |
Flower(s) |
|
John D. Byrd |
| 1299148 |
Flower(s) |
|
Steve Dewey |
| 0001059 |
Flower(s) |
|
James R. Allison |
| 0024036 |
Flower(s) |
|
Norman E. Rees |
| 0580016 |
Flower(s) |
in bloom |
Loke T. Kok |
| 1148159 |
Flower(s) |
|
USDA APHIS PPQ Archive |
| 1334026 |
Flower(s) |
Ready to set seed. Montana |
Wendy VanDyk Evans |
| 1391205 |
Flower(s) |
|
John D. Byrd |
| 1459766 |
Flower(s) |
|
Steve Dewey |
| 1459769 |
Flower(s) |
|
Utah State University Archive |
| 1459771 |
Flower(s) |
|
Steve Dewey |
| 1459773 |
Flower(s) |
|
Steve Dewey |
| 1459778 |
Flower(s) |
On right; with bull thistle on left |
Steve Dewey |
| 1539017 |
Flower(s) |
|
James H. Miller |
| 1542402 |
Flower(s) |
|
Joy Viola |
| 1553271 |
Flower(s) |
|
Ohio State Weed Lab Archive |
| 1459776 |
Flower(s) |
|
Steve Dewey |
| 1624058 |
Flower(s) |
|
Steve Dewey |
| 2128097 |
Flower(s) |
|
Chris Evans |
| 2128098 |
Flower(s) |
|
Chris Evans |
| 2128095 |
Flower(s) |
|
Chris Evans |
| 5360186 |
Flower(s) |
Musk thistle (Carduus nutans) flower head, in bloom. |
K. George Beck |
| 5229043 |
Flower(s) |
|
Richard Old |
| 5229044 |
Flower(s) |
|
Richard Old |
| 5229045 |
Flower(s) |
|
Richard Old |
| 5356228 |
Flower(s) |
visited by a variety of insects |
Terry L Spivey |
| 5356229 |
Flower(s) |
visited by an insect |
Terry L Spivey |
| 5366299 |
Flower(s) |
|
K. George Beck & James Sebastian |
| 5366300 |
Flower(s) |
|
K. George Beck & James Sebastian |
| 5366301 |
Flower(s) |
|
K. George Beck & James Sebastian |
| 5370303 |
Flower(s) |
|
Rebekah D. Wallace |
| 5370304 |
Flower(s) |
|
Rebekah D. Wallace |
| 5370306 |
Flower(s) |
|
Rebekah D. Wallace |
| 5374310 |
Flower(s) |
|
Joseph M. DiTomaso |
| 5391993 |
Flower(s) |
Young flowerhead |
John M. Randall |
| 5391994 |
Flower(s) |
Flowerhead I |
John M. Randall |
| 5379582 |
Flower(s) |
June |
James H. Miller |
| 5391997 |
Flower(s) |
Flowerhead |
John M. Randall |
| 5374311 |
Foliage |
basal rosette |
Joseph M. DiTomaso |
| 5366293 |
Foliage |
|
K. George Beck & James Sebastian |
| 5366294 |
Foliage |
|
K. George Beck & James Sebastian |
| 5366295 |
Foliage |
|
K. George Beck & James Sebastian |
| 5366296 |
Foliage |
rosette |
K. George Beck & James Sebastian |
| 5366297 |
Foliage |
rosette |
K. George Beck & James Sebastian |
| 5366298 |
Foliage |
rosettes |
K. George Beck & James Sebastian |
| 5229042 |
Foliage |
|
Richard Old |
| 5139001 |
Foliage |
|
Lynn Sosnoskie |
| 1459779 |
Foliage |
|
Steve Dewey |
| 1459774 |
Foliage |
|
Steve Dewey |
| 1391206 |
Foliage |
|
John D. Byrd |
| 0580013 |
Foliage |
basal rosette |
Loke T. Kok |
| 1560074 |
Fruit(s) |
|
Ken Chamberlain |
| 1459767 |
Infestation |
|
Steve Dewey |
| 1459768 |
Infestation |
|
Steve Dewey |
| 1459772 |
Infestation |
|
Steve Dewey |
| 1299211 |
Infestation |
|
Vince Belleci |
| 1299216 |
Infestation |
growing along crop field |
Vince Belleci |
| 1384001 |
Infestation |
A pile of fill dirt left over winter. The following spring, the pile was covered in musk thistles. |
Kris Johnson |
| 0026009 |
Infestation |
|
Norman E. Rees |
| 0026010 |
Infestation |
|
Norman E. Rees |
| 0026011 |
Infestation |
|
Norman E. Rees |
| 0026012 |
Infestation |
|
Norman E. Rees |
| 0026013 |
Infestation |
|
Norman E. Rees |
| 0025027 |
Infestation |
|
Norman E. Rees |
| 0024050 |
Infestation |
|
Norman E. Rees |
| 0024051 |
Infestation |
|
Norman E. Rees |
| 0024053 |
Infestation |
|
Norman E. Rees |
| 0024054 |
Infestation |
in pasture |
Norman E. Rees |
| 0024055 |
Infestation |
over grazed pasture with excessive plants |
Norman E. Rees |
| 1374621 |
Infestation |
Plants in fall |
Terry Spivey |
| 5366291 |
Infestation |
in flower |
K. George Beck & James Sebastian |
| 5366292 |
Infestation |
in flower |
K. George Beck & James Sebastian |
| 5374308 |
Infestation |
|
Joseph M. DiTomaso |
| 5391998 |
Infestation |
|
John M. Randall |
| 5391999 |
Infestation |
|
John M. Randall |
| 4064026 |
|
Habersham Co., GA |
James R. Allison |
| 4064027 |
|
Habersham Co., GA |
James R. Allison |
| 5138100 |
Plant(s) |
|
Lynn Sosnoskie |
| 5139002 |
Plant(s) |
|
Lynn Sosnoskie |
| 2128096 |
Plant(s) |
|
Chris Evans |
| 2128094 |
Plant(s) |
|
Chris Evans |
| 1459777 |
Plant(s) |
|
Steve Dewey |
| 1459775 |
Plant(s) |
|
Steve Dewey |
| 1459780 |
Plant(s) |
Rosette |
Steve Dewey |
| 1459781 |
Plant(s) |
|
Steve Dewey |
| 1459782 |
Plant(s) |
|
Steve Dewey |
| 1539015 |
Plant(s) |
|
James H. Miller |
| 1539016 |
Plant(s) |
|
James H. Miller |
| 1459770 |
Plant(s) |
|
Steve Dewey |
| 1459765 |
Plant(s) |
|
Steve Dewey |
| 1358308 |
Plant(s) |
|
Mary Ellen (Mel) Harte |
| 0025033 |
Plant(s) |
in full bloom |
Norman E. Rees |
| 0024037 |
Plant(s) |
|
Norman E. Rees |
| 1237108 |
Plant(s) |
|
Dan Tenaglia |
| 1237110 |
Plant(s) |
upper stem |
Dan Tenaglia |
| 1237112 |
Plant(s) |
lower stem |
Dan Tenaglia |
| 1358315 |
Plant(s) |
|
Mary Ellen (Mel) Harte |
| 1299210 |
Plant(s) |
|
Vince Belleci |
| 0001058 |
Plant(s) |
|
James R. Allison |
| 1299132 |
Plant(s) |
|
Randy Westbrooks |
| 5391995 |
Plant(s) |
Mature plant |
John M. Randall |
| 5391996 |
Plant(s) |
Mature plant |
John M. Randall |
| 5366290 |
Plant(s) |
flower buds |
K. George Beck & James Sebastian |
| 5374309 |
Plant(s) |
in flower |
Joseph M. DiTomaso |
| 5358655 |
Plant(s) |
Musk thistle plants (Carduus nutans) growing along a fence. |
L.L. Berry |
| 5358656 |
Plant(s) |
Second-year rosette of musk thistle (Carduus nutans). |
L.L. Berry |
| 5360188 |
Plant(s) |
Musk Thistle flowering stages
|
K. George Beck |
| 5360190 |
Plant(s) |
Musk Thistle 2nd-year rosette |
K. George Beck |
| 5364521 |
Plant(s) |
Rosettes of musk thistle (Carduus nutans). |
Howard F. Schwartz |
| 5364567 |
Plant(s) |
Rosettes of musk thistle (Carduus nutans). |
Howard F. Schwartz |
| 5370305 |
Root(s) |
|
Rebekah D. Wallace |
| 0024067 |
Seed(s) |
from a single seed head |
Norman E. Rees |
| 0025022 |
Seed(s) |
|
Norman E. Rees |
| 5374312 |
Seedling(s) |
|
Joseph M. DiTomaso |
| 5364568 |
Seedling(s) |
Seedlings of musk thistle (Carduus nutans). |
Howard F. Schwartz |
| 5360189 |
Seedling(s) |
Musk Thistle1st-year rosette |
K. George Beck |
| 5358657 |
Seedling(s) |
Musk thistle (Carduus nutans) seedlings, with a ruler to show size. |
L.L. Berry |
| 5379583 |
Stem(s) |
June |
James H. Miller |
