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Embryo: Erigeron floribundus; Illustration by K. Parker, Kirkbride et al. (2006) Embryo: Erigeron floribundus; Illustration by K. Parker, Kirkbride et al. (2006)
Asteraceae
Embryo: Erigeron floribundus; Illustration by K. Parker, Kirkbride et al. (2006)
Fruit, seed: Helianthus annuus ; Photo by N. Diaz, USDA APHIS PPQ, imageID.idtools.org Fruit, seed: Helianthus annuus; Photo by N. Diaz, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Fruit, seed: Helianthus annuus; Photo by N. Diaz, USDA APHIS PPQ, imageID.idtools.org
Fruits: Helianthus annuus ; Photo by V. Brewster, USDA APHIS PPQ, imageID.idtools.org Fruits: Helianthus annuus; Photo by V. Brewster, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Fruits: Helianthus annuus; Photo by V. Brewster, USDA APHIS PPQ, imageID.idtools.org
Infructescence: Hieracium albiflorum ; Photo by W. Siegmund, wikimedia commons Infructescence: Hieracium albiflorum; Photo by W. Siegmund, wikimedia commons
Asteraceae
Infructescence: Hieracium albiflorum; Photo by W. Siegmund, wikimedia commons

Fruits: Hypochaeris glabra ; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID Fruits: Hypochaeris glabra; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruits: Hypochaeris glabra; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Fruits: Lactuca sativa ; Photo by A. Margina, USDA APHIS PPQ, imageID.idtools.org Fruits: Lactuca sativa; Photo by A. Margina, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Fruits: Lactuca sativa; Photo by A. Margina, USDA APHIS PPQ, imageID.idtools.org
Fruits: Leucophyta brownii ; Photo by L. Seastone, USDA APHIS PPQ ITP, imageID.idtools.org Fruits: Leucophyta brownii; Photo by L. Seastone, USDA APHIS PPQ ITP, imageID.idtools.org
Asteraceae
Fruits: Leucophyta brownii; Photo by L. Seastone, USDA APHIS PPQ ITP, imageID.idtools.org
Fruits: Logfia filaginoides , each of the two types (with and without papillae), plus a partial ring of bristles; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID Fruits: Logfia filaginoides, each of the two types (with and without papillae), plus a partial ring of bristles; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruits: Logfia filaginoides, each of the two types (with and without papillae), plus a partial ring of bristles; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID

Fruit: Mikania cordata ; Photo by J. Scher, Federal Noxious Weed Disseminules of the US Fruit: Mikania cordata; Photo by J. Scher, Federal Noxious Weed Disseminules of the US
Asteraceae
Fruit: Mikania cordata; Photo by J. Scher, Federal Noxious Weed Disseminules of the US
Fruit: Mikania micrantha ; Photo by J. Scher, Federal Noxious Weed Disseminules of the US Fruit: Mikania micrantha; Photo by J. Scher, Federal Noxious Weed Disseminules of the US
Asteraceae
Fruit: Mikania micrantha; Photo by J. Scher, Federal Noxious Weed Disseminules of the US
Fruits: Notobasis syriaca ; Photo by K.E. Clancy, USDA APHIS PPQ, imageID.idtools.org Fruits: Notobasis syriaca; Photo by K.E. Clancy, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Fruits: Notobasis syriaca; Photo by K.E. Clancy, USDA APHIS PPQ, imageID.idtools.org
Embryo: Notobasis syriaca ; Illustration by K. Parker, Kirkbride et al. (2006) Embryo: Notobasis syriaca; Illustration by K. Parker, Kirkbride et al. (2006)
Asteraceae
Embryo: Notobasis syriaca; Illustration by K. Parker, Kirkbride et al. (2006)

Fruit: Onopordum acanthium , with an inset of the fruit's 4-sided cross-section; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID Fruit: Onopordum acanthium, with an inset of the fruit's 4-sided cross-section; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruit: Onopordum acanthium, with an inset of the fruit's 4-sided cross-section; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Fruit: Onopordum illyricum ; Photo by D. Walters, USDA APHIS PPQ, imageID.idtools.org Fruit: Onopordum illyricum; Photo by D. Walters, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Fruit: Onopordum illyricum; Photo by D. Walters, USDA APHIS PPQ, imageID.idtools.org
Fruit: Onopordum illyricum , A, Fruit; B, longitudinal section of fruit showing embryo; C, transection of fruit; Illustration by L.E. Chandler Fruit: Onopordum illyricum, A, Fruit; B, longitudinal section of fruit showing embryo; C, transection of fruit; Illustration by L.E. Chandler
Asteraceae
Fruit: Onopordum illyricum, A, Fruit; B, longitudinal section of fruit showing embryo; C, transection of fruit; Illustration by L.E. Chandler
Infructescence: Porophyllum ruderale ; Photo by M. Segall, USDA APHIS PPQ, imageID.idtools.org Infructescence: Porophyllum ruderale; Photo by M. Segall, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Infructescence: Porophyllum ruderale; Photo by M. Segall, USDA APHIS PPQ, imageID.idtools.org

Fruit: Simsia amplexicaulis ; Photo by O. Mireles, USDA APHIS PPQ, imageID.idtools.org Fruit: Simsia amplexicaulis; Photo by O. Mireles, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Fruit: Simsia amplexicaulis; Photo by O. Mireles, USDA APHIS PPQ, imageID.idtools.org
Embryo: Simsia amplexicaulis ; Illustration by K. Parker, Kirkbride et al. (2006) Embryo: Simsia amplexicaulis; Illustration by K. Parker, Kirkbride et al. (2006)
Asteraceae
Embryo: Simsia amplexicaulis; Illustration by K. Parker, Kirkbride et al. (2006)
Fruit: Sonchus arvensis ; Photo by J. Scher, Federal Noxious Weed Disseminules of the US Fruit: Sonchus arvensis; Photo by J. Scher, Federal Noxious Weed Disseminules of the US
Asteraceae
Fruit: Sonchus arvensis; Photo by J. Scher, Federal Noxious Weed Disseminules of the US
Fruit: Sonchus asper , each entangled in it’s own pappus; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID Fruit: Sonchus asper, each entangled in it’s own pappus; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruit: Sonchus asper, each entangled in it’s own pappus; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID

Infructescence: Scorzoneroides autumnalis ; Photo by M. Kesl., eol.org Infructescence: Scorzoneroides autumnalis; Photo by M. Kesl., eol.org
Asteraceae
Infructescence: Scorzoneroides autumnalis; Photo by M. Kesl., eol.org
Embryo: Senecio bipinnatisectus ; Illustration by K. Parker, Kirkbride et al. (2006) Embryo: Senecio bipinnatisectus; Illustration by K. Parker, Kirkbride et al. (2006)
Asteraceae
Embryo: Senecio bipinnatisectus; Illustration by K. Parker, Kirkbride et al. (2006)
Fruits: Senecio inaequidens ; Photo by D. Walters, USDA APHIS PPQ, imageID.idtools.org Fruits: Senecio inaequidens; Photo by D. Walters, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Fruits: Senecio inaequidens; Photo by D. Walters, USDA APHIS PPQ, imageID.idtools.org
Fruits: Sonchus oleraceus ; Photo by J. Scher, Federal Noxious Weed Disseminules of the US Fruits: Sonchus oleraceus; Photo by J. Scher, Federal Noxious Weed Disseminules of the US
Asteraceae
Fruits: Sonchus oleraceus; Photo by J. Scher, Federal Noxious Weed Disseminules of the US

Fruits: Senecio vulgaris ; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID Fruits: Senecio vulgaris; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruits: Senecio vulgaris; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Fruits: Tanacetum parthenium ; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID Fruits: Tanacetum parthenium; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruits: Tanacetum parthenium; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Fruits: Taraxacum officinale ; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID Fruits: Taraxacum officinale; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruits: Taraxacum officinale; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Fruit: Tridax procumbens ; Photo by M. Maher, USDA APHIS PPQ ITP, imageID.idtools.org Fruit: Tridax procumbens; Photo by M. Maher, USDA APHIS PPQ ITP, imageID.idtools.org
Asteraceae
Fruit: Tridax procumbens; Photo by M. Maher, USDA APHIS PPQ ITP, imageID.idtools.org

Fruit, seed: Xanthium strumarium , showing dissected fruit with seed intact; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID Fruit, seed: Xanthium strumarium, showing dissected fruit with seed intact; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruit, seed: Xanthium strumarium, showing dissected fruit with seed intact; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Fruit: Zinnia sp.; Photo by N. Diaz, USDA APHIS PPQ, imageID.idtools.org Fruit: Zinnia sp.; Photo by N. Diaz, USDA APHIS PPQ, imageID.idtools.org
Asteraceae
Fruit: Zinnia sp.; Photo by N. Diaz, USDA APHIS PPQ, imageID.idtools.org
Fruit: Asteropeia multiflora ; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006) Fruit: Asteropeia multiflora; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Asteropeiaceae
Fruit: Asteropeia multiflora; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Seeds: Asteropeia multiflora ; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006) Seeds: Asteropeia multiflora; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Asteropeiaceae
Seeds: Asteropeia multiflora; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)