Lassen County

Ecosystem Overview

The Lassen County ecosystem supports 100 documented wildlife species across 85 taxonomic genera. Located in Lassen County, California, this area provides critical habitat with diverse natural communities. The location hosts 21 frequently observed species and 19 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Westwood, Lassen County hosts 0% more species diversity. This location ranks #1 for species diversity among 12 Lassen County County natural areas, placing it in the 92th percentile for biodiversity.

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 12 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 12 locations

92th percentile for diversity

vs. Westwood

+0% species diversity

Ecosystem Overview

‌
‌
‌
‌

Biodiversity Highlights

‌

Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

‌

Most Common Species

Showing 20 most frequently observed species out of 100 total documented species.

Fritillaria atropurpurea

Very Common11 obs.

Blepharipappus scaber

rough eyelashweed

Very Common9 obs.

Phacelia linearis

thread-leaved phacelia

Very Common8 obs.

Taraxia tanacetifolia

tansyleaf evening primrose

Very Common8 obs.

Astragalus purshii

Very Common6 obs.

Layia glandulosa

white layia

Common6 obs.

Pheucticus melanocephalus

Black-headed Grosbeak

Common6 obs.

Sarcodes sanguinea

Common5 obs.

Leucocrinum montanum

mountain-lily

Common5 obs.

Calochortus macrocarpus

sagebrush mariposa

Common5 obs.

Buteo jamaicensis

Red-tailed Hawk

Common5 obs.

Odocoileus hemionus

mule deer

Occasional5 obs.

Ursus americanus

American Black Bear

Occasional5 obs.

Contopus sordidulus

Western Wood-Pewee

Occasional5 obs.

Geothlypis tolmiei

MacGillivray's Warbler

Occasional5 obs.

Astragalus malacus

shaggy milk-vetch

Occasional5 obs.

Viola purpurea

pine violet

Occasional5 obs.

Callospermophilus lateralis

Golden Mantled Ground Squirrel

Rare5 obs.

Pseudacris regilla

Pacific chorus frog

Rare5 obs.

Antilocapra americana

pronghorn

Rare4 obs.

Want the Complete Field Guide?

Get all 100 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.

Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.

Most Common Species

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

Want the Complete Field Guide?

‌
‌

‌

Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Lassen County. Perfect for outdoor adventures, education, and nature exploration.

$6.99

Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Lassen County. Perfect for outdoor adventures, education, and nature exploration.

Email Address (for delivery)

Your field guide will be delivered to this email address. Please double-check for accuracy.

$6.99

Regional Comparison

Regional Ranking

100

Species Count

+1900%

vs. Regional Average

Compared to 8 nearby locations in Lassen County County, California

Nearby Natural Areas

Silver Lake

Importance: 0.35

12 species

+733% vs. current

Susanville

Importance: 0.35

10 species

+900% vs. current

Widow Lake

Importance: 0.35

4 species

+2400% vs. current

Horse Lake

Importance: 0.35

4 species

+2400% vs. current

Caribou Lake

Importance: 0.35

4 species

+2400% vs. current

Butte Lake

Importance: 0.35

3 species

+3233% vs. current

Crater Lake

Importance: 0.35

2 species

+4900% vs. current

Dodge Reservoir

Importance: 0.35

1 species

+9900% vs. current

About This Comparison

These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Lassen County County.

Regional Comparison

‌

Regional Ranking

‌

Species Count

‌

vs. Regional Average

‌

Nearby Natural Areas

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

About This Comparison

‌
‌
‌

Regional Comparison

Regional Ranking

100

Species Count

+1900%

vs. Regional Average

Compared to 8 nearby locations in Lassen County County, California

Nearby Natural Areas

Silver Lake

Importance: 0.35

12 species

+733% vs. current

Susanville

Importance: 0.35

10 species

+900% vs. current

Widow Lake

Importance: 0.35

4 species

+2400% vs. current

Horse Lake

Importance: 0.35

4 species

+2400% vs. current

Caribou Lake

Importance: 0.35

4 species

+2400% vs. current

Butte Lake

Importance: 0.35

3 species

+3233% vs. current

Crater Lake

Importance: 0.35

2 species

+4900% vs. current

Dodge Reservoir

Importance: 0.35

1 species

+9900% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 12 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 12 locations

92th percentile for diversity

vs. Westwood

+0% species diversity

Most Common Species

Showing 20 most frequently observed species out of 100 total documented species.

Fritillaria atropurpurea

Very Common11 obs.

Blepharipappus scaber

rough eyelashweed

Very Common9 obs.

Phacelia linearis

thread-leaved phacelia

Very Common8 obs.

Taraxia tanacetifolia

tansyleaf evening primrose

Very Common8 obs.

Astragalus purshii

Very Common6 obs.

Layia glandulosa

white layia

Common6 obs.

Pheucticus melanocephalus

Black-headed Grosbeak

Common6 obs.

Sarcodes sanguinea

Common5 obs.

Leucocrinum montanum

mountain-lily

Common5 obs.

Calochortus macrocarpus

sagebrush mariposa

Common5 obs.

Buteo jamaicensis

Red-tailed Hawk

Common5 obs.

Odocoileus hemionus

mule deer

Occasional5 obs.

Ursus americanus

American Black Bear

Occasional5 obs.

Contopus sordidulus

Western Wood-Pewee

Occasional5 obs.

Geothlypis tolmiei

MacGillivray's Warbler

Occasional5 obs.

Astragalus malacus

shaggy milk-vetch

Occasional5 obs.

Viola purpurea

pine violet

Occasional5 obs.

Callospermophilus lateralis

Golden Mantled Ground Squirrel

Rare5 obs.

Pseudacris regilla

Pacific chorus frog

Rare5 obs.

Antilocapra americana

pronghorn

Rare4 obs.

Want the Complete Field Guide?

Get all 100 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.

Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.