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Family

Genus

Common name

Noxious Weed Seed

AOSA Examination List

Species Category

Disseminule/Planting Unit

Shape

Seed length

Seed width

Seed thickness

Color

Texture

Other structures

 

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Mikania cordata. Glandular achenes. Photo by Julia Scher, USDA-APHIS-PPQ. Mikania cordata. Glandular achenes. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania cordata
Mikania cordata. Glandular achenes. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania cordata. Achenes with a round and hollow scar at the basal end. Photo by Julia Scher, USDA-APHIS-PPQ. Mikania cordata. Achenes with a round and hollow scar at the basal end. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania cordata
Mikania cordata. Achenes with a round and hollow scar at the basal end. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania cordata. Achenes with a pappus of many white and rough hairs. Photo by Julia Scher, USDA-APHIS-PPQ. Mikania cordata. Achenes with a pappus of many white and rough hairs. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania cordata
Mikania cordata. Achenes with a pappus of many white and rough hairs. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania micrantha. Glandular achenes. Photo by Julia Scher, USDA-APHIS-PPQ. Mikania micrantha. Glandular achenes. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania micrantha
Mikania micrantha. Glandular achenes. Photo by Julia Scher, USDA-APHIS-PPQ.

Mikania micrantha. Achenes with white rough pappus hairs. Photo by Julia Scher, USDA-APHIS-PPQ. Mikania micrantha. Achenes with white rough pappus hairs. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania micrantha
Mikania micrantha. Achenes with white rough pappus hairs. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania micrantha. Achenes with round hollow scar at base. Photo by Julia Scher, USDA-APHIS-PPQ. Mikania micrantha. Achenes with round hollow scar at base. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania micrantha
Mikania micrantha. Achenes with round hollow scar at base. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania scandens. Achenes with a white pappus of many rough hairs. Photo by Julia Scher, USDA-APHIS-PPQ. Mikania scandens. Achenes with a white pappus of many rough hairs. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania scandens
Mikania scandens. Achenes with a white pappus of many rough hairs. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania scandens. Achenes with a round and hollow scar at the base. Photo by Julia Scher, USDA-APHIS-PPQ. Mikania scandens. Achenes with a round and hollow scar at the base. Photo by Julia Scher, USDA-APHIS-PPQ.
Mikania scandens
Mikania scandens. Achenes with a round and hollow scar at the base. Photo by Julia Scher, USDA-APHIS-PPQ.

Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha
Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha
Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds with a horseshoe-shaped line on a flat surface. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences. Mimosa diplotricha. Seeds with a horseshoe-shaped line on a flat surface. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Mimosa diplotricha
Mimosa diplotricha. Seeds with a horseshoe-shaped line on a flat surface. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha
Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.

Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha
Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seed pods. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa diplotricha. Seed pods. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha
Mimosa diplotricha. Seed pods. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds in prickly pods. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa diplotricha. Seeds in prickly pods. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha
Mimosa diplotricha. Seeds in prickly pods. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa pigra var. pigra . Seeds that have a depressed central region, except for a short linear bulge in the center. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa pigra var. pigra. Seeds that have a depressed central region, except for a short linear bulge in the center. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa pigra var. pigra
Mimosa pigra var. pigra. Seeds that have a depressed central region, except for a short linear bulge in the center. Photo by Julia Scher, USDA-APHIS-PPQ.

Mimosa pigra var. pigra . Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa pigra var. pigra. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa pigra var. pigra
Mimosa pigra var. pigra. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa pigra var. pigra . Fruits with hairs. Photo by Julia Scher, USDA-APHIS-PPQ. Mimosa pigra var. pigra. Fruits with hairs. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa pigra var. pigra
Mimosa pigra var. pigra. Fruits with hairs. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa pigra var. pigra . Seeds with a line following margin and a short linear bulge in the center of the seed. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences. Mimosa pigra var. pigra. Seeds with a line following margin and a short linear bulge in the center of the seed. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Mimosa pigra var. pigra
Mimosa pigra var. pigra. Seeds with a line following margin and a short linear bulge in the center of the seed. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Mimosa pudica. Loments with seeds that can break out of the loment cover.  Mimosa pudica. Loments with seeds that can break out of the loment cover. 
Mimosa pudica
Mimosa pudica. Loments with seeds that can break out of the loment cover. 

Mimosa pudica.  Loment that is marginally winged. Mimosa pudica. Loment that is marginally winged.
Mimosa pudica
Mimosa pudica. Loment that is marginally winged.
Mimulus sp. Seeds that are wrinkled with some wrinkles arranged longitudinally.  Mimulus sp. Seeds that are wrinkled with some wrinkles arranged longitudinally. 
Mimulus sp.
Mimulus sp. Seeds that are wrinkled with some wrinkles arranged longitudinally. 
Mirabilis jalapa. Achenes with a crown-like structure at the apex. Mirabilis jalapa. Achenes with a crown-like structure at the apex.
Mirabilis jalapa
Mirabilis jalapa. Achenes with a crown-like structure at the apex.
Mirabilis jalapa. Achenes with a recurved point at the base. Mirabilis jalapa. Achenes with a recurved point at the base.
Mirabilis jalapa
Mirabilis jalapa. Achenes with a recurved point at the base.

Moluccella laevis. Seeds with two triangular sides and a rounded third side. Moluccella laevis. Seeds with two triangular sides and a rounded third side.
Moluccella laevis
Moluccella laevis. Seeds with two triangular sides and a rounded third side.
Momordica charantia. Seeds with dorsal and ventral sides that have separate margins with a row of reticulations between them.  Momordica charantia. Seeds with dorsal and ventral sides that have separate margins with a row of reticulations between them. 
Momordica charantia
Momordica charantia. Seeds with dorsal and ventral sides that have separate margins with a row of reticulations between them. 
Monarda ×medioides. Nutlets with two large scars at the base that are dark colored and are separated by a small oval attachment structure.  Monarda ×medioides. Nutlets with two large scars at the base that are dark colored and are separated by a small oval attachment structure. 
Monarda ×medioides
Monarda ×medioides. Nutlets with two large scars at the base that are dark colored and are separated by a small oval attachment structure. 
Monarda citriodora. Nutlets with two lateral indentations at the base separated by a small oval attachment structure. Monarda citriodora. Nutlets with two lateral indentations at the base separated by a small oval attachment structure.
Monarda citriodora
Monarda citriodora. Nutlets with two lateral indentations at the base separated by a small oval attachment structure.

Monarda didyma. Nutlets with a large scar and are indented at the rib on the ventral side. Monarda didyma. Nutlets with a large scar and are indented at the rib on the ventral side.
Monarda didyma
Monarda didyma. Nutlets with a large scar and are indented at the rib on the ventral side.
Monarda fistulosa. Nutlets with two large scars at the base that are light colored and separated by a small oval attachment structure.  Monarda fistulosa. Nutlets with two large scars at the base that are light colored and separated by a small oval attachment structure. 
Monarda fistulosa
Monarda fistulosa. Nutlets with two large scars at the base that are light colored and separated by a small oval attachment structure. 
From Left to Right: 1. Salvia azurea var. grandiflora 2. Dracocephalum parviflora 3. Salvia reflexa 4. Nepeta cataria 5. Monarda punctata 6. Mentha arvensis. Nutlets with a scar on a single circle at the base of the ridge.  From Left to Right: 1. Salvia azurea var. grandiflora 2. Dracocephalum parviflora 3. Salvia reflexa 4. Nepeta cataria 5. Monarda punctata 6. Mentha arvensis. Nutlets with a scar on a single circle at the base of the ridge. 
Monarda punctata
From Left to Right: 1. Salvia azurea var. grandiflora 2. Dracocephalum parviflora 3. Salvia reflexa 4. Nepeta cataria 5. Monarda punctata 6. Mentha arvensis. Nutlets with a scar on a single circle at the base of the ridge. 
Monochoria hastata. Seeds with large, widely-spaced, longitudinal ribs. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria hastata. Seeds with large, widely-spaced, longitudinal ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria hastata
Monochoria hastata. Seeds with large, widely-spaced, longitudinal ribs. Photo by Julia Scher, USDA-APHIS-PPQ.

Monochoria hastata. Seeds with large, widely-spaced, longitudinal ribs. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria hastata. Seeds with large, widely-spaced, longitudinal ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria hastata
Monochoria hastata. Seeds with large, widely-spaced, longitudinal ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria hastata. Seeds with transverse stipples between the ribs. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria hastata. Seeds with transverse stipples between the ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria hastata
Monochoria hastata. Seeds with transverse stipples between the ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria hastata. Seeds with ribs that join at the dark circle at the apex. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria hastata. Seeds with ribs that join at the dark circle at the apex. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria hastata
Monochoria hastata. Seeds with ribs that join at the dark circle at the apex. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria hastata. Seeds with a pointed hilum at the base. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria hastata. Seeds with a pointed hilum at the base. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria hastata
Monochoria hastata. Seeds with a pointed hilum at the base. Photo by Julia Scher, USDA-APHIS-PPQ.

Monochoria vaginalis . True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria vaginalis. True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria vaginalis
Monochoria vaginalis. True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria vaginalis . True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria vaginalis. True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria vaginalis
Monochoria vaginalis. True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria vaginalis . True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria vaginalis. True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria vaginalis
Monochoria vaginalis. True seeds with longitudinal and wide-spaced ribs with transverse stipples between ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria vaginalis . True seeds with ribs that join at a dark circle at the apex. Photo by Julia Scher, USDA-APHIS-PPQ. Monochoria vaginalis. True seeds with ribs that join at a dark circle at the apex. Photo by Julia Scher, USDA-APHIS-PPQ.
Monochoria vaginalis
Monochoria vaginalis. True seeds with ribs that join at a dark circle at the apex. Photo by Julia Scher, USDA-APHIS-PPQ.