Astragalus breweri

A.Gray · species

image placeholder — illustration coming later

Plantae/Tracheophyta/Magnoliopsida/Fabales/Fabaceae/Astragalus

At a glance

Occurrence records169

Data sources6

Biological traits15

DNA specimens0

eDNA detections0

Sources6 archives

Databases and archives Astragalus breweri's data was compiled from.

WikipediaWikimedia Foundation3 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility169 records↗

Open Tree of LifeOpenTreephylogeny backbone↗

CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗

PloiDBPloidy Databasegenome & karyotype

On this page4 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements3 literature sources15 traits

Occurrence & distributionGBIF169 records

Genome at a glanceCCDB2n = 22

01Narrative

Astragalus breweri is a species of milkvetch known by the common name Brewer's milkvetch. It is endemic to northern California, where it is found in several counties surrounding the north edge of the San Francisco Bay Area. It grows in open habitat in the North Coast Ranges, sometimes on serpentine soils.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPGIFTTRY

Life cycle & reproduction3

Life formannual

Life spanannual

Raunkiær life formtherophyte

Diet & foraging1

Parasiteindependent

Habitat & environment6

Aquaticterrestrial

Climatetemperate

Climberself-supporting

Epiphyteterrestrial

Growth formherb

Woodinessnon-woody

Physiology & chemistry5

Leaf C:N ratio10.8 g/g

Leaf c430 mg/g

Leaf dry-matter content (LDMC)143 mg/g

Leaf n39.8 mg/g

Specific leaf area (SLA)24.17 mm²/mg

05DNA & barcodingmolecular

A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Astragalus breweri has left across the world's sequence archives.

At a glance

06Genome at a glanceCCDB

The complete instruction manual Astragalus breweri carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.

Chromosomes & ploidyhow the DNA is packaged

2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.

Chromosomes2n = 22 n = 11

Ploidypolyploid inferred

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 221×CCDB · ipcn-api-dl

CCDB · ipcn-api-dl — Liston, A. 1990. Chromosome counts in Astragalus (Fabaceae). Madroño 37: 59–60.

n 111×CCDB · ipcn-api-dl

CCDB · ipcn-api-dl — Liston, A. 1990. Chromosome counts in Astragalus (Fabaceae). Madroño 37: 59–60.

Ploidy records — measured levels and diploid/polyploid inferences · click for sources

polyploid inferred1×PloiDB · genus-scale

PloiDB · genus-scale — chromEvol; reliability=1.000 ↗

08Occurrence & distribution

Record type169 records

Wild obs. + sensor61

Museum / vouchered108

Range

Area of Occupancy AOO488 km²

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

Coordinate accuracy0% within 1 km

>10 km 61

61 georeferenced

Open the mapobservation + sensor61

Museum / Voucheredphysical evidence

Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.

Coordinate accuracy51% within 1 km

≤100 m 5≤1 km 31≤10 km 32>10 km 2

70 georeferenced · 38 without coordinates

Open the institutions mapphysical evidence108

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

10Collections & institutions

Holding institutions17 of 21 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Claremont, US	14
Davis, US	13
Bronx, US	9
Angwin, US	8
Arcata, US	7
CASlocation not on record	6
Santa Barbara, US	3
LDlocation not on record	2
Santa Cruz, US	2
New Haven, US	1
Wuzhou, CN	1
San Francisco, US	1
Provo, US	1
Riverside, US	1
Chadron, US	1
San Diego, US	1
San Luis Obispo, US	1
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record	1
Canadian Department of Agriculturelocation not on record	1
Fullerton, US	1
Los Angeles, US	1

21 institutions · 76 of 108 vouchered records shown · 32 without an institution code

←→tabs

The Life Data · species page · narrative wired to read_model image placeholder · 3D tilt requires an http server (WebGL)