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What

venus thistle Cirsium occidentale var. venustum

Date

August 21, 2015 03:14 PM PDT

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What

venus thistle Cirsium occidentale var. venustum

Date

August 21, 2015 03:13 PM PDT

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What

venus thistle Cirsium occidentale var. venustum

Date

August 21, 2015

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What

cobwebby thistle Cirsium occidentale

Observer

cedric_lee

Date

August 15, 2015 09:51 AM PDT

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What

cobwebby thistle Cirsium occidentale

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cedric_lee

Date

August 11, 2015 05:51 PM PDT

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What

California thistle Cirsium occidentale var. californicum

Observer

jmartz87

Date

April 5, 2015 12:01 PM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

cedric_lee

Date

August 6, 2015 02:14 PM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

cedric_lee

Date

August 3, 2015 02:39 PM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

cedric_lee

Date

July 26, 2015 10:39 AM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

lupinete

Date

July 24, 2015 06:08 PM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

wdthein

Date

July 24, 2015 05:10 PM PDT

Description

Side of dirt road.

Photos / Sounds

19760561639 75909cd37f s

What

California thistle Cirsium occidentale var. californicum

Observer

finatic

Date

July 5, 2015 06:56 PM PDT

Description

San Diego County, California, US

Photos / Sounds

What

cobwebby thistle Cirsium occidentale var. occidentale

Observer

rjadams55

Date

June 3, 2012

Description

Unlike many thistles which are introduced and invasive, Cobweb Thistle is a native species with numerous subspecies endemic to California.

Photos / Sounds

7298397488 bdf2cdb711 s

What

compact cobwebby thistle Cirsium occidentale var. compactum

Observer

rjadams55

Date

May 26, 2012

Place

(Somewhere...)

Description

This rare ground-crowding form of the Cobwebby Thistle is endemic to the central California coast. The vast majority of known records are from a short stretch of northern San Luis Obispo County and southern Monterey County.

The more common form is a tall, erect plant like most other regional thistles.

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What

cobwebby thistle Cirsium occidentale

Observer

cedric_lee

Date

July 20, 2015 05:22 PM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

elfaulkner

Date

July 4, 2015 10:42 AM PDT

Photos / Sounds

What

California thistle Cirsium occidentale var. californicum

Observer

jwarnert

Date

May 23, 2015 08:35 AM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

wischlegel

Date

July 11, 2015 03:14 PM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

robberfly

Date

July 10, 2015 10:25 AM PDT

Description

var. candidissimum

Photos / Sounds

What

venus thistle Cirsium occidentale var. venustum

Observer

tori14

Date

July 7, 2015

Description

The flower was red and prickly. The base of the flower is also prickly but green and purple. the stalk is long, purplish, and skinny. The leaves are many but small. The leaves are green but prickly and skinny. The base of the plant is green and thistle-like. The plant was found in rocky soil near a cliff/steep hill. There are boulders, dead plants, scraggly tough-looking plants surrounding. The plant is about 2 feet high and 2 feet in diameter. There are about 5 others in a 20 foot diameter.

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What

cobwebby thistle Cirsium occidentale

Observer

willfreyman

Date

July 3, 2015 12:59 PM PDT

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What

snowy thistle Cirsium occidentale var. candidissimum

Observer

pedromiguel

Date

June 12, 2015 06:47 PM PDT

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What

snowy thistle Cirsium occidentale var. candidissimum

Observer

pedromiguel

Date

June 12, 2015 06:48 PM PDT

Photos / Sounds

What

cobwebby thistle Cirsium occidentale

Observer

naheim

Date

July 3, 2015 10:54 AM PDT

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What

venus thistle Cirsium occidentale var. venustum

Observer

rosita-rios

Date

July 2, 2015

Description

Has petals that are pink and yellow. In the tips of the petals are white puffs. At the bottom has a green/black spiky and sharp thorns.Down to its stem it had green leaves with hair and thorns. It is nearly 2-3 inches tall. Ants were located predating it. At least 3 more were located near this plant. Grew in a dry, grassy area.

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What

cobwebby thistle Cirsium occidentale

Observer

cedric_lee

Date

June 27, 2015

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What

cobwebby thistle Cirsium occidentale

Observer

leslie_flint

Date

June 27, 2015 09:51 AM PDT

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What

cobwebby thistle Cirsium occidentale

Observer

hfabian

Date

June 26, 2015

Description

In bloom, bud and seed.

Photos / Sounds

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What

California thistle Cirsium occidentale var. californicum

Observer

garyg

Date

June 20, 2015 07:05 PM PDT

Photos / Sounds

18513328403 45995d85b4 s

What

California thistle Cirsium occidentale var. californicum

Observer

jaykeller

Date

June 13, 2015 03:34 PM PDT