ITP Logo

Gallery

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

 

per page:

page:
of 59     


Oenothera sinuosa. Long and narrow capsules with four longitudinal ridges with sharp edges. Oenothera sinuosa. Long and narrow capsules with four longitudinal ridges with sharp edges.
Oenothera sinuosa
Oenothera sinuosa. Long and narrow capsules with four longitudinal ridges with sharp edges.
Oenothera speciosa. True seeds with a somewhat flattened apex. Oenothera speciosa. True seeds with a somewhat flattened apex.
Oenothera speciosa
Oenothera speciosa. True seeds with a somewhat flattened apex.
Oligoneuron album . Achenes with an elongate attachment on the basal end. Oligoneuron album. Achenes with an elongate attachment on the basal end.
Oligoneuron album
Oligoneuron album. Achenes with an elongate attachment on the basal end.
Solidago riddellii. Achenes with a basal end that has an elongated attachment. Solidago riddellii. Achenes with a basal end that has an elongated attachment.
Oligoneuron riddellii
Solidago riddellii. Achenes with a basal end that has an elongated attachment.

Solidago riddellii. Achenes with a basal end that has an elongated attachment. Solidago riddellii. Achenes with a basal end that has an elongated attachment.
Oligoneuron riddellii
Solidago riddellii. Achenes with a basal end that has an elongated attachment.
Oligoneuron rigidum var. rigidum. Achenes with some brown coloration in creases between the large ribs. Oligoneuron rigidum var. rigidum. Achenes with some brown coloration in creases between the large ribs.
Oligoneuron rigidum var. rigidum
Oligoneuron rigidum var. rigidum. Achenes with some brown coloration in creases between the large ribs.
Oligoneuron rigidum var. rigidum.  Achenes with an indentation below the pappus crown. Oligoneuron rigidum var. rigidum. Achenes with an indentation below the pappus crown.
Oligoneuron rigidum var. rigidum
Oligoneuron rigidum var. rigidum. Achenes with an indentation below the pappus crown.
Onobrychis viciifolia. Indehiscent pod with sides that are coarsely reticulate. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences. Onobrychis viciifolia. Indehiscent pod with sides that are coarsely reticulate. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Onobrychis viciifolia
Onobrychis viciifolia. Indehiscent pod with sides that are coarsely reticulate. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.

Onopordum acanthium.  Light brown achenes with a glossy gray, overcast, black longitudinal lines. Onopordum acanthium. Light brown achenes with a glossy gray, overcast, black longitudinal lines.
Onopordum acanthium
Onopordum acanthium. Light brown achenes with a glossy gray, overcast, black longitudinal lines.
Onopordum tauricum.  The achenes are blocky and have transverse wavy ridges. Onopordum tauricum. The achenes are blocky and have transverse wavy ridges.
Onopordum tauricum
Onopordum tauricum. The achenes are blocky and have transverse wavy ridges.
Opuntia aurantiaca. Flowers. Photo by Julia Scher, USDA-APHIS-PPQ. Opuntia aurantiaca. Flowers. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia aurantiaca
Opuntia aurantiaca. Flowers. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia aurantiaca . Spines. Photo by Julia Scher, USDA-APHIS-PPQ. Opuntia aurantiaca. Spines. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia aurantiaca
Opuntia aurantiaca. Spines. Photo by Julia Scher, USDA-APHIS-PPQ.

Opuntia aurantiaca . Plant. Photo by Julia Scher, USDA-APHIS-PPQ. Opuntia aurantiaca. Plant. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia aurantiaca
Opuntia aurantiaca. Plant. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia aurantiaca . Plant. Photo by Julia Scher, USDA-APHIS-PPQ. Opuntia aurantiaca. Plant. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia aurantiaca
Opuntia aurantiaca. Plant. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia aurantiaca . Plant. Photo by Julia Scher, USDA-APHIS-PPQ. Opuntia aurantiaca. Plant. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia aurantiaca
Opuntia aurantiaca. Plant. Photo by Julia Scher, USDA-APHIS-PPQ.
Opuntia polyacantha. True seeds with a circular groove near the margin. Opuntia polyacantha. True seeds with a circular groove near the margin.
Opuntia polyacantha
Opuntia polyacantha. True seeds with a circular groove near the margin.

Origanum majorana. Nutlets in various shades of brown. Origanum majorana. Nutlets in various shades of brown.
Origanum majorana
Origanum majorana. Nutlets in various shades of brown.
Origanum majorana . Finely granular nutlets. Origanum majorana. Finely granular nutlets.
Origanum majorana
Origanum majorana. Finely granular nutlets.
Origanum vulgare. Nutlets with uniformly rounded dorsal and ventral sides. Origanum vulgare. Nutlets with uniformly rounded dorsal and ventral sides.
Origanum vulgare
Origanum vulgare. Nutlets with uniformly rounded dorsal and ventral sides.
Origanum vulgare. Nutlets with uniformly rounded dorsal and ventral sides. Origanum vulgare. Nutlets with uniformly rounded dorsal and ventral sides.
Origanum vulgare
Origanum vulgare. Nutlets with uniformly rounded dorsal and ventral sides.

Ornithopus sativus.  The fruit coat segment encloses a true seed.  Ornithopus sativus. The fruit coat segment encloses a true seed. 
Ornithopus sativus
Ornithopus sativus. The fruit coat segment encloses a true seed. 
Orobanche aegyptiaca. Irregularly shaped seeds with wide and deep reticulations. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche aegyptiaca. Irregularly shaped seeds with wide and deep reticulations. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche aegyptiaca
Orobanche aegyptiaca. Irregularly shaped seeds with wide and deep reticulations. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche aegyptiaca. Irregularly shaped seeds with wide and deep reticulations. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche aegyptiaca. Irregularly shaped seeds with wide and deep reticulations. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche aegyptiaca
Orobanche aegyptiaca. Irregularly shaped seeds with wide and deep reticulations. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche aegyptiaca. Seed capsules. Photo by Julia Scher, USDA-APHIS, year unknown. Orobanche aegyptiaca. Seed capsules. Photo by Julia Scher, USDA-APHIS, year unknown.
Orobanche aegyptiaca
Orobanche aegyptiaca. Seed capsules. Photo by Julia Scher, USDA-APHIS, year unknown.

Orobanche artemisiae-campestri.  Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche artemisiae-campestri. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche artemisiae-campestris
Orobanche artemisiae-campestri. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche artemisiae-campestri.  Seeds with reticulations that have shiny walls and stippled bases. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche artemisiae-campestri. Seeds with reticulations that have shiny walls and stippled bases. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche artemisiae-campestris
Orobanche artemisiae-campestri. Seeds with reticulations that have shiny walls and stippled bases. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche californica. Shiny and reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche californica. Shiny and reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche californica
Orobanche californica. Shiny and reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche californica. Seeds with a small hilum on a pointed end. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche californica. Seeds with a small hilum on a pointed end. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche californica
Orobanche californica. Seeds with a small hilum on a pointed end. Photo by Julia Scher, USDA-APHIS-PPQ.

Orobanche cernua. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche cernua. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche cernua
Orobanche cernua. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche cernua. Small deeply reticulate seeds. Orobanche cernua. Small deeply reticulate seeds.
Orobanche cernua
Orobanche cernua. Small deeply reticulate seeds.
Orobanche cernua. Seed capsules. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche cernua. Seed capsules. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche cernua
Orobanche cernua. Seed capsules. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche cooperi. Small and globose seeds. Orobanche cooperi. Small and globose seeds.
Orobanche cooperi
Orobanche cooperi. Small and globose seeds.

Orobanche cooperi. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche cooperi. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche cooperi
Orobanche cooperi. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche cooperi. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche cooperi. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche cooperi
Orobanche cooperi. Deeply reticulate seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche crenata. Seeds with reticulations that have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche crenata. Seeds with reticulations that have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche crenata
Orobanche crenata. Seeds with reticulations that have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche crenata. Seeds with reticulations that have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche crenata. Seeds with reticulations that have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche crenata
Orobanche crenata. Seeds with reticulations that have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ.

Orobanche fasciculata. Seeds with reticulations that have shiny walls and bases.Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche fasciculata. Seeds with reticulations that have shiny walls and bases.Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche fasciculata
Orobanche fasciculata. Seeds with reticulations that have shiny walls and bases.Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche fasciculata. Seeds with reticulations that have shiny walls and bases.Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche fasciculata. Seeds with reticulations that have shiny walls and bases.Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche fasciculata
Orobanche fasciculata. Seeds with reticulations that have shiny walls and bases.Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche hederae. Seeds have reticulations have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche hederae. Seeds have reticulations have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche hederae
Orobanche hederae. Seeds have reticulations have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche hederae. Seeds have reticulations have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ. Orobanche hederae. Seeds have reticulations have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ.
Orobanche hederae
Orobanche hederae. Seeds have reticulations have shiny walls and bases. Photo by Julia Scher, USDA-APHIS-PPQ.