 Leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Rosette of hairy leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Flower buds and young leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Flower buds and young leaves of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Basal leaves of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 24, 2021
 Hairy leaves of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, February 26, 2023
 Leaves of squaw-weed (Senecio ampullaceus) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 21, 2023
 Flower buds of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Flower buds of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Unfolding flowers of squaw-weed (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Shoot of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, February 26, 2023
 Squaw-weed flowers (Senecio ampullaceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024
 Squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2021
 Winter rosette of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2022
 Flower buds of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 18, 2021
 Flower buds of squaw-weed (Senecio ampullaceus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022
 Leaf of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Underside of a leaf of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Spores (in KOH) of white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from a leaf of squaw-weed (Senecio ampullaceus), collected near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Blooming squaw-weed (Senecio) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Unfolding leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Leaves of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, February 26, 2024
 Leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Basal rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Squaw-weed (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Squaw-weed flowers (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Flower buds of squaw-weed (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Fresh cucumber weed (Parietaria pensylvanica) among dry oak leaves on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Basal rosette of leaves of squaw-weed (Senecio ampullaceus) on a recent cutting in Lick Creek Park. College Station, Texas, March 15, 2020
 Cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Shoots of cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Emerging cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Underside of leaves of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Lick Creek Park. College Station, Texas, March 20, 2023
 Squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Upper view of cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Leaves of squaw-weed (Senecio ampullaceus) with light yellow areas on leaves caused by sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Basal rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Winter rosette of leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Close-up of underside of leaves of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Lick Creek Park. College Station, Texas, March 20, 2023
 Mock Bishop s Weed (Ptilimnium nuttali) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023
 Leaves of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
 Common groundsel (Senecio vulgaris) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Some hairy leaves on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Basal leaves of baby blue eyes (Nemophila phacelioides) among dry oak leaves on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Rosette of leaves of plantain(?) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Rosette of leaves of Coreopsis(?) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Rosette of oval leaves on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Rosette of basal leaves on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Winter rosette of leaves of plantain(?) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Some rosette of leaves with purple spots on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Leaves of woolly-white (Hymenopappus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Hairy leaves of spiderwort (Tradescantia) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Gall from underside of a leaf of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, April 9, 2024
 Flower buds of squaw-weed (Senecio ampullaceus) in Anderson Arboretum in Bee Creek Park. College Station, March 7, 2024
 Rosette of leaves of Brazilian vervain (Verbena) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Rosette of leaves of evening primrose (Oenothera) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Winter rosette of leaves of thistle (Cirsium) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Rosette of prickly leaves of thistle (Cirsium) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Close-up of cucumber weed (Parietaria pensylvanica) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Basal leaves of redseed plantain (Plantago rhodosperma) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Reddish rosette of leaves of evening primrose (Oenothera) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Spores (in Congo Red) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from white spots on leaves of squaw-weed (Senecio ampullaceus) collected on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
 Spores (in lugol) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from white spots on leaves of squaw-weed (Senecio ampullaceus) collected on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
 Seedlings of cucumber weed (Parietaria pensylvanica) on a path on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, November 23, 2023
 Spores and tissues (at low magnification) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from white spots on leaves of squaw-weed (Senecio ampullaceus) collected on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
 Central area of rosette of prickly leaves of thistle (Cirsium) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Basal leaves of baby blue eyes (Nemophila phacelioides) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Burrow of leaf cutter ants among leaves og Yaupon holly on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Rosette of leaves of baby blue eyes (Nemophila phacelioides) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Leaves of vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023
 Leaves of coralberry bush at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023
 Leaves of summer spiderlily (Hymenocallis occidentalis) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023
 Tissues (in Melzer) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?), collected from white powdery stuff with web from underside leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos a day before. Texas, March 7, 2023
 Spores an conidia(?) (in KOH) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?), collected from white powdery stuff with web from underside leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos a day before. Texas, March 7, 2023
 Squaw-weed flower (Senecio ampullaceus) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
 Blooming squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Squaw-weed flower (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 5, 2008
 Flowers of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019
 Blooming squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2022
 Water drops on basal leaves of baby blue eyes (Nemophila phacelioides) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Basal leaves of baby blue eyes (Nemophila phacelioides) with droplets of water on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Flower buds of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2022
 Flower buds of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Leaves of bluebonnet (lupinus) in dew at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 6, 2024
 Shoot of squaw-weed (Senecio ampullaceus) with flower buds in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Dry leaves of gum Bumelia on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 3, 2023
 lambsquarter weed (pigweed, Chenopodium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022
 Spores (in Melzer) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) together with conidia of Alternaria leaf spot(?), collected from white powdery stuff with web from underside leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos a day before. Texas, March 7, 2023
 Underside of a leaf of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Rosette of some hairy leaves on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Young hairy leaves of oak on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Young leaves of cypress(?) elm on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Some hairy rosette of leaves on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Rosettes of leaves of plants of aster family at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, February 26, 2023
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