Summer Weeds List 2025
- Matthew Kutugata
- Maria Laura Cangiano
- Alexander Allen
Index | Common name | Scientific Name | Authority | EPPO | Status | Location | Notes | Imaging Site |
|---|---|---|---|---|---|---|---|---|
1 | spiny amaranth | Amaranthus spinosus | Linnaeus | AMASP | status:seeds located | OH | Eugene has them | MD |
2 | Canada thistle | Cirsium arvense | (Linnaeus) Scopoli | CIRAR | status:ORDERED | TX | Rhizomes; Seeds ordered - Navjot | TX |
3 | pitted morning glory | Ipomoea lacunosa | Linnaeus | IPOLA | status:awaiting germ test | NC | Received seeds from Mark VanGessel but are a mix of pitted and ivyleaf. He shared characteristics to separate. Nick will start germ test and also check to see how feasible is it to separate the seeds. Might be seed at BARC for pitted and ivyleaf | MD |
4 | palm-leaf morning glory | Ipomoea wrightii | Sweet | IPOWR | status:Not found |
|
|
|
5 | ivy-leaf morning glory | Ipomoea hederacea | Jacquin | IPOHE | status:AVAILABLE | NC | Received seeds from Mark VanGessel but are a mix of pitted and ivyleaf. He shared characteristics to separate. Nick will start germ test and also check to see how feasible is it to separate the seeds. NC ship to MD | MD |
6 | horse nettle | Solanum carolinense | Linnaeus | SOLCA | status:Not found |
| Rhizome |
|
7 | Bermuda grass | Cynodon dactylon | (Linnaeus) Persoon | CYNDA | status:Not found |
|
|
|
8 | jointed goatgrass | Aegilops cylindrica | Host | AEGCY | status:Not found |
| Amber Emmons from OSU as source. This is actually a Winter annual. Confirm suitability for location. |
|
9 | common pokeweed | Phytolacca americana | Linnaeus | PHTAM | status:available | TX | https://seedsource.com/american-pokeweed/ TX to do germ test | TX |
10 | Venice mallow | Hibiscus trionum | Linnaeus | HIBTR | status:available | TX | Seeds ordered -Navjot | TX |
11 | cressleaf groundsel | Packera glabella | (Poiret) C. Jeffrey | SENGL | status:Not found |
|
|
|
12 | hyssop spurge | Euphorbia hyssopifolia | Linnaeus | EPHHS | status:Not found |
|
|
|
13 | fall panicum | Panicum dichotomiflorum | Michaux | PANDI | status:awaiting germ test | TX, NC | Germ Test Failed TX ship to MD | MD |
14 | downy brome | Bromus tectorum | Linnaeus | BROTE | status:awaiting germ test | NC | This is actually a Winter annual. Confirm suitability for location. |
|
15 | ladysthumb | Polygonum persicaria | Gray | POLPE | status:awaiting germ test | NC | Germ Test Failed | MD |
16 | wild oat | Avena fatua | Linnaeus | AVEFA | status:available, | MD | NC Germ Test Failed MD to do germ test | MD |
17 | Yellow nutsedge | Cyperus esculentus | Linnaeus | CYPES | status:ordered, status:available | MD, NC | NC ship to MD | MD |
18 | Common sunflower | Helianthus annuus |
| HELAN | status:available | TX | This species will be redone since more images are needed | TX |
19 | Ragweed parthenium | Parthenium hysterophorus |
| PTNHY | status:available | TX | This species will be redone since more images are needed | TX |
20 | Johnson grass | Sorghum halepense |
| SORHA | status:available | TX | This species will be redone since more images are needed | TX |