Recent observations View all

Photos / Sounds

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What

Himalayan Blackberry Rubus armeniacus

Observer

direbecca

Date

April 16, 2015

Description

The park tried to get this patch cleared out last year, but it's making a comeback.

Photos / Sounds

What

Black Mustard Brassica nigra

Observer

direbecca

Date

April 12, 2015

Description

Large stand all along north side of this creek.

Photos / Sounds

What

Red-eared Turtle Trachemys scripta ssp. elegans

Observer

direbecca

Date

April 13, 2015

Description

Three individuals near a Western Pond turtle.

Photos / Sounds

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Observer

direbecca

Date

April 18, 2015

Description

(aka Ice Plant)

Photos / Sounds

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What

European beachgrass Ammophila arenaria

Observer

direbecca

Date

April 18, 2015

Photos / Sounds

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Observer

kevinhintsa

Date

October 21, 2011 05:33 PM PDT

Description

Non-native and a rapidly spreading pest in the East Bay . Favors disturbed areas . Note strong scent like a tarweed . Tiny flowers in late summer into autumn .

Photos / Sounds

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What

Red-seeded Dandelion Taraxacum erythrospermum

Observer

kevinhintsa

Date

March 15, 2015 10:18 AM PDT

Description

This is a recent split of Common Dandelion . Note sharp-toothed leaves and reddish ( not olive ) seeds . Non-native .

Photos / Sounds

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What

Dove's Foot Crane's-bill Geranium molle

Observer

kevinhintsa

Date

March 15, 2015 12:22 PM PDT

Description

Non-native .

Photos / Sounds

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What

Field Marigold Calendula arvensis

Observer

kevinhintsa

Date

April 5, 2014 02:10 PM PDT

Description

From past files .Summit Trail , up the trail from the water tower . I attempted to partly eradicate this non-native species from the park . I think it was Dianne Lake or someone from UC-Berkeley who finally identified this .

Photos / Sounds

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What

Hairy Vetch Vicia villosa

Observer

kevinhintsa

Date

May 8, 2009 12:00 PM PDT

Description

From past files . Little Yosemite Trail .

Photos / Sounds

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What

Round-leaved Crane's-foot Geranium rotundifolium

Observer

kevinhintsa

Date

April 30, 2009 06:41 PM PDT

Description

Any other records at Mount Diablo State Park ? Non-native . Found at Macedo Ranch .

Photos / Sounds

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What

Little-Robin Geranium purpureum

Observer

kevinhintsa

Date

April 27, 2009 04:46 PM PDT

Description

Non-native . Common in canyon out of Rock City -Sycamore Canyon .

Photos / Sounds

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What

clustered clover Trifolium glomeratum

Observer

kevinhintsa

Date

April 23, 2009 01:38 PM PDT

Description

Mitchell Canyon to Olofson Ridge area .

Photos / Sounds

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What

Shepherd's-needle Scandix pecten-veneris

Observer

kevinhintsa

Date

March 29, 2010 12:08 PM PDT

Description

Non-native . Note petals of uneven length .

Photos / Sounds

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Observer

kevinhintsa

Date

April 8, 2010 03:45 PM PDT

Description

Non-native . Usually in grazed areas .

Photos / Sounds

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What

Mediterranean lineseed Bellardia trixago

Observer

kevinhintsa

Date

April 30, 2009 01:50 PM PDT

Description

Non-native .

Photos / Sounds

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What

Spotted Medick Medicago arabica

Observer

kevinhintsa

Date

April 30, 2009 04:44 PM PDT

Description

Non-native . Near Pine Creek .

Photos / Sounds

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What

Sweet Fennel Foeniculum vulgare

Observer

richardwasson

Date

April 18, 2015

Photos / Sounds

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What

Common Reed Phragmites australis

Observer

skiman1016

Date

April 18, 2015 03:57 PM EDT

Photos / Sounds

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What

Wild Turkey Meleagris gallopavo

Observer

dwest

Date

April 17, 2015 02:06 PM PDT

Photos / Sounds

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What

Bluegill Lepomis macrochirus

Observer

dwest

Date

April 15, 2015 12:23 PM PDT

Photos / Sounds

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What

Persian Speedwell Veronica persica

Observer

kevinhintsa

Date

March 15, 2015 12:18 PM PDT

Description

Non-native .

Photos / Sounds

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What

Cabbage White Pieris rapae

Observer

kevinhintsa

Date

August 7, 2014 10:47 AM PDT

Description

Nectaring at Asclepias fascicularis . Note also milkweed aphids and nymphs of milkweed bugs .

Photos / Sounds

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What

Cabbage White Pieris rapae

Observer

kevinhintsa

Date

September 30, 2010 12:51 PM PDT

Description

An uncommon species generally in this park .

Photos / Sounds

What

eggleaf spurge Euphorbia oblongata

Observer

richardwasson

Date

April 16, 2015

Photos / Sounds

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What

Scarlet Pimpernel Anagallis arvensis

Observer

annemirdl

Date

April 4, 2015

Photos / Sounds

Observer

kevinhintsa

Date

May 21, 2011 01:20 PM PDT

Description

From past files . At the time I observed this plant there was only a single California record . Alas , it is non-native .

Photos / Sounds

What

Starling Sturnus vulgaris

Observer

richardwasson

Date

April 16, 2015

Photos / Sounds

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Observer

kevinhintsa

Date

February 3, 2015 02:45 PM PST

Description

Non-native . In bloom and common along this trail which is a disturbed area . Note whorled leaves .

Photos / Sounds

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What

Wild Mustard Sinapis arvensis

Observer

kevinhintsa

Date

February 3, 2015 02:59 PM PST

Description

In bloom in a disturbed area .

More observations

About

Seeking to document observations of non-native introduced species outside of their original homelands. Observations must be of organisms that were introduced to an area by humans recently (established populations of introduced species are okay), not natural shifts in range, or migrations.

933 mini invertboy created this project on March 29, 2012

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