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Quercus tomentella |
| common name | island oak |
CalPhotos image
![\"CalPhotos](http://cnps.site.aplus.net/woda/icons/dlp1.gif "\\"CalPhotos")
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© 1993 Dean Wm. Taylor Follow image link for photo data.
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| family | Fagaceae |
| life form | evergreen tree |
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CNPS List
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List 4.2
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LIST 4: Limited distribution (Watch List).
0.2: Fairly endangered in California |
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 state rank
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| S3.2 |
S3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres |
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global rank
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| G3 |
G3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres |
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Where did the "RED" code go?
Where did the "RED" code go?
We've simplified our rating system.
Read about it here.
Under the old system, this plant was "1-2-2" (v6.05d, 9/05).
Rarity 1: Rare, but found in sufficient numbers and
distributed widely enough that the potential
for extinction is low
at this time.
Endangerment 2: Fairly endangered in California
Distribution 2: Rare outside California.
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| CA state listing | None |
federal listing | None |
| where found |
Counties, states, regions:
Anacapa Isl. (ANA), San Clemente Isl. (SCM), Santa Catalina Isl. (SCT), Santa Cruz Isl. (SCZ), Santa Rosa Isl. (SRO), Isla Guadalupe - Baja (GU)
- Green indicates one or more populations.
- Yellow indicates uncertainty[?] or extirpation[*].
See list above. A complete key is on the Index by County page.
- Pending additional quad-level data, only county data
are being provided for List 4 plants.
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| A reminder: Species not recorded for a given area
may nonetheless be present, especially where favorable
conditions occur.
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CNPS habitats | •Closed-cone coniferous forest (CCFrs)
•Chaparral (Chprl)
•Cismontane woodland (CmWld)
•Riparian woodland (RpWld) |
| blooming period
| Mar-Jul |
| elevation range | 15 - 730 meters |
| notes
| | Threatened by trampling, erosion, grazing, feral herbivores, and introgression. Hybridizes with Q. chrysolepis except on SRO and GU islands. Populations on GU Isl. have declined dramatically in recent years. See Transactions of the Academy of Science of St. Louis 3:393 (1877) for original description. |
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full name | Quercus tomentella Engelm. |
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| standard acronym |
QUTO |
Element Code
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PDFAG05250 |
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| CalFlora
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this taxon |
related taxa
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| Jepson Online |
Jepson Manual and other resources |
| Google search |
CNPS website
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entire web
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