Flowers are 10.5–17 mm and bluish-purple, bluish violet to pale blue, sometimes even white. Petals tips are notched or flattened with a little point. Sisyrinchium bellum, the western blue-eyed grass or Californian blue-eyed grass, is the common blue-eyed grass of California and Oregon in and west of the Sierra Nevada, its range extending south into Baja California. In parts of its range, western blue-eyed grass has previously been classified as Sisyrinchium eastwoodiae, S. greenei and S. hesperium, but these names are now considered synonyms. Sisyrinchium bellum grows as a perennial plant in open places where there is some moisture, particularly grassy areas, though it can also be found in woodlands and at altitudes up to 2400 m. Like other species of blue-eyed grasses that are locally dominant, it is generally known simply as "blue-eyed grass" within its natural range.
No narrative description available for this taxon yet.
⚠ sources differ — GIFT: herb · TRY: perennial forb
Woodinessnon-woody
Physiology & chemistry5
Leaf c407 mg/g
Leaf dry-matter content (LDMC)236 mg/g
Leaf n17.16 mg/g
Photosynthetic pathwayC3
Specific leaf area (SLA)17.11 mm²/mg
05DNA & barcoding9 specimens
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 Sisyrinchium bellum has left across the world's sequence archives.
At a glance
DNA specimens9
Marker genes4
GenBank sequences8
eDNA detections8
Countries1
The DNA barcodea real sequence read deposited for this species
Sisyrinchium bellum 5.8S ribosomal RNA gene and internal transcribed spacer 2, partial sequence
Marker genes sequenced
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★matK2★rbcLa★ITS6★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB · GoaT
The complete instruction manualSisyrinchium bellum 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.
Genome sizehow big the whole instruction manual is
Genome size3 520 800 000 bp
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
BACTERIUM Carsonella ruddii0.00016 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
HUMAN3.2 Gb
THIS GENOME Sisyrinchium bellum3.52 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
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.
CCDB · ipcn-api-dl — Kenton, A. Y., P. J. Rudall & A. R. Johnson. 1986. Genome size variation in Sisyrinchium L. (Iridaceae) and its relationship to phenotype and habitat. Bot. Gaz. 147: 342–354.
CCDB · kew — Kenton AY, Rudall PJ, Johnson AR. 1986. Genome size variation in Sisyrinchium L. (Iridaceae) and its relationship to phenotype and habitat. Botanical Gazette 147: 342-345.
CCDB · ipcn-api-dl — Henderson, D. M. 1976. A biosystematic study of Pacific Northwestern blue-eyed grasses (Sisyrinchium, Iridaceae). Brittonia 28: 149–176.
CCDB · book-ipcn75-78 — Henderson 1976
CCDB · Cave1963 — Clausen et al. 1940
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy93% within 1 km
≤100 m 15 300≤1 km 1 961≤10 km 810>10 km 580
18 651 georeferenced · 4 804 without coordinates
Open the mapobservation + sensor23 455
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 accuracy59% within 1 km
≤100 m 135≤1 km 578≤10 km 468>10 km 20
1 201 georeferenced · 1 031 without coordinates
Open the institutions mapphysical evidence2 232
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 institutions59 of 80 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
San Diego, US
313
Claremont, US
255
Riverside, US
184
Santa Barbara, US
146
Davis, US
123
Angwin, US
122
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
84
Corvallis, US
80
US
80
Arcata, US
80
San Luis Obispo, US
68
Severin-McDaniel Insect Collectionlocation not on record
46
Santa Cruz, US
32
Long Beach, US
30
CASlocation not on record
28
Irvine, US
26
Canadian Department of Agriculturelocation not on record
23
Northridge, US
22
Los Angeles, US
21
Madison, US
20
Fredericton Stock Culture Collectionlocation not on record
19
Ensenada, MX
17
La Paz, MX
15
Turlock, US
12
Pullman, US
12
Bronx, US
11
EL PASO, US
11
ASUlocation not on record
10
Bloomington, US
9
WTUlocation not on record
9
San Bernardino, US
8
Phoenix, US
8
Chongqing Museumlocation not on record
8
Flagstaff, US
7
Arizona State University Biocollectionslocation not on record
6
Provo, US
6
Tampa, US
5
Ashland, US
5
Auckland, NZ
4
Catalina Island Conservancylocation not on record
4
San Jose, US
4
Portland, US
4
University of Stellenboschlocation not on record
4
Mississippi State, US
3
Cheney, US
3
Ann Arbor, US
3
Moscow State Universitylocation not on record
2
Denver, US
2
UC Berkeley, Blue Oak Ranch Reservelocation not on record
2
Mexico City, MX
2
College Park, US
2
AUAlocation not on record
2
GB
2
San Angelo, US
1
Austin, US
1
Porto Alegre, BR
1
Moscow, US
1
Durango, MX
1
Saint Louis, US
1
Nantes Culture Collectionlocation not on record
1
Truckee, US
1
Taipei, TW
1
Burlington, US
1
Boise, US
1
Logan, US
1
Dekalb, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
Bend, US
1
San Diego Natural History Museumlocation not on record
1
Montréal, CA
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
Bangkok, TH
1
St. Paul, US
1
Henderson, US
1
San Diego Natural History Museum, Herbariumlocation not on record
1
Beijing, CN
1
Vancouver, CA
1
Albuquerque, US
1
McWane Science Centerlocation not on record
1
Bureau of Land Management, Medford District Officelocation not on record
1
80 institutions · 2 031 of 2 232 vouchered records shown · 200 without an institution code
09Environmental DNA8 detections
Where the DNA of Sisyrinchium bellum was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found8
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 8 detections have coordinates
Open the map1 country0
Coastal Sage Scrub/Grassland with Artemisia …
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median13.7 °C 12.7–14.7
Seasonal swing summer↔winter18.9 °C
Max temp (day)19.3 °C 18.6–20.0
Min temp (night)9.30 °C 8.50–10.2
Precipitation49.8 mm/mo 25.9–73.7
Air humidity59.1 % 57.7–60.5
Moisture balance-69.3 mm/mo -94.0–-44.5
Vapour deficit700 Pa 674–726
Wind speed4.10 m/s 2.70–5.50
Cloud cover34.2 % 32.2–36.2
CHELSA 1981–2010, ~9 km grid, at location & month of 2 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.