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Species / Taxon Name
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What

Procumbent Pearlwort Sagina procumbens

Observer

susanhewitt

Date

May 27, 2020 12:17 PM EDT

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What

Purslane Speedwell Veronica peregrina

Observer

susanhewitt

Date

May 27, 2020 12:16 PM EDT

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What

Woodsorrels Genus Oxalis

Observer

susanhewitt

Date

May 27, 2020 12:15 PM EDT

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What

Procumbent Pearlwort Sagina procumbens

Observer

susanhewitt

Date

May 27, 2020 12:15 PM EDT

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What

Bog Yellowcress Rorippa palustris

Observer

susanhewitt

Date

May 27, 2020 12:13 PM EDT

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What

Fleabanes and Horseweeds Genus Erigeron

Observer

susanhewitt

Date

May 27, 2020 12:13 PM EDT

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What

Horseweed Erigeron canadensis

Observer

susanhewitt

Date

May 27, 2020 12:12 PM EDT

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What

Pennsylvania Pellitory Parietaria pensylvanica

Observer

susanhewitt

Date

May 27, 2020 12:12 PM EDT

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Observer

susanhewitt

Date

May 27, 2020 12:12 PM EDT

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Observer

susanhewitt

Date

May 27, 2020 12:11 PM EDT

Description

Perhaps?

On the Fleabane plant in the previous observation. I will try to see if I can get a better pic next time I am there. But I might have to climb up and over some metal benches to get at this plant.

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What

Annual Fleabane Erigeron annuus

Observer

susanhewitt

Date

May 27, 2020 12:10 PM EDT

Photos / Sounds

Observer

susanhewitt

Date

May 27, 2020 12:09 PM EDT

Description

Aphids on the growing tip of a small oak seedling.

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What

Willow Oak Quercus phellos

Observer

susanhewitt

Date

May 27, 2020 12:09 PM EDT

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What

European Holly Ilex aquifolium

Observer

susanhewitt

Date

May 27, 2020 12:09 PM EDT

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What

Bittersweet Nightshade Solanum dulcamara

Observer

susanhewitt

Date

May 27, 2020 12:09 PM EDT

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What

White Mulberry Morus alba

Observer

susanhewitt

Date

May 27, 2020 12:09 PM EDT

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What

Elms Genus Ulmus

Observer

susanhewitt

Date

May 27, 2020 12:08 PM EDT

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What

Bacterial Speck Pseudomonas syringae

Observer

susanhewitt

Date

May 27, 2020 12:08 PM EDT

Description

Referred to in the literature as "Pseudomonas syringae pv. berberidis".

The "pv." in the name means pathovar. As Wikipedia explains, a pathovar is:

"a bacterial strain or set of strains with the same or similar characteristics, that is differentiated at infrasubspecific level from other strains of the same species or subspecies on the basis of distinctive pathogenicity to one or more plant hosts.
Pathovars are named as a ternary or quaternary addition to the species binomial name"

Supposedly a cold wet spring favors this pathogen, and that was certainly what we had this year.

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What

Bacterial Speck Pseudomonas syringae

Observer

susanhewitt

Date

May 27, 2020 12:08 PM EDT

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What

Bacterial Speck Pseudomonas syringae

Observer

susanhewitt

Date

May 27, 2020 12:07 PM EDT

Photos / Sounds

What

Bacterial Speck Pseudomonas syringae

Observer

susanhewitt

Date

May 27, 2020 12:07 PM EDT

Description

Leaf spot on Berberis.

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What

Willow Oak Quercus phellos

Observer

susanhewitt

Date

May 27, 2020 12:07 PM EDT

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What

Willow Oak Quercus phellos

Observer

susanhewitt

Date

May 27, 2020 12:06 PM EDT

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What

Oaks Genus Quercus

Observer

susanhewitt

Date

May 27, 2020 12:06 PM EDT

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Ants Family Formicidae

Observer

susanhewitt

Date

May 27, 2020 12:06 PM EDT

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Pennsylvania Everlasting Gamochaeta pensylvanica

Observer

susanhewitt

Date

May 27, 2020 12:05 PM EDT

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What

Dicots Class Magnoliopsida

Observer

susanhewitt

Date

May 27, 2020 12:05 PM EDT

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What

Sidewalk Mites Genus Balaustium

Observer

susanhewitt

Date

May 27, 2020 12:04 PM EDT

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What

Pennsylvania Pellitory Parietaria pensylvanica

Observer

susanhewitt

Date

May 27, 2020 12:03 PM EDT

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What

White Snakeroot Ageratina altissima

Observer

susanhewitt

Date

May 27, 2020 12:03 PM EDT
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