| Riparian Coverage at Squally Beach - Percent Cover - Year 1
(2002) |
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| Common
Name |
Scientific
Name |
No. of
Quadrats Found 1 |
Percent
Cover (range) |
Percent
Cover (mean) |
|
| Herbs, Forbes and Grasses |
|
| birds-foot trefoil |
Lotus corniculatus |
20 |
2 to 35% |
12.9 |
|
| black
medick |
Medicago
lupulina |
12 |
Trace to 5% |
3.3 |
|
| bluegrass |
Poa sp. |
3 |
5 to 10% |
8.3 |
|
| brome |
Bromus sp. |
2 |
2 to 3% |
2.5 |
|
| bull
thistle |
Cirsium vulgare |
2 |
3 to 20% |
11.5 |
|
| Canada
thistle |
Cirsium arvense |
3 |
5 to 15% |
11.7 |
|
| cheatgrass |
Bromus tectorum |
5 |
1 to 5% |
3.6 |
|
| colonial
bentgrass |
Agrostis tenuis |
14 |
Trace to 10% |
3.4 |
|
| common
dandelion |
Taraxacum
officinale |
1 |
3% |
3.0 |
|
| common
horsetail |
Equisetum
arvense |
11 |
2 to 50% |
20.6 |
|
| common
rush |
Juncus effusus |
2 |
Trace to 3% |
1.5 |
|
| common
St. John's-wort |
Hypericum
perforatum |
1 |
3% |
3.0 |
|
| common
stork's-bill |
Erodium
cicutarium |
2 |
Trace |
0.1 |
|
| common
velvet-grass |
Holcus lanatus |
15 |
Trace to 10% |
3.5 |
|
| creeping
buttercup |
Ranunculus
repens |
2 |
1% |
1.0 |
|
| hairy
catsear |
Hypochaeris
radicata |
1 |
Trace |
0.1 |
|
| hedge
mustard |
Sisymbrium
officinale |
3 |
5 to 50% |
21.7 |
|
| Japanese
knotweed |
Polygonum
cuspidatum |
2 |
Trace |
0.1 |
|
| lettuce |
Lactuca sp. |
1 |
2% |
2.0 |
|
| lupine |
Lupinus sp. |
14 |
Trace to 55% |
11.2 |
|
| oxeye
daisy |
Chrysanthemum
leucanthemum |
2 |
2 to 5% |
3.5 |
|
| pea |
Lathyrus sp. |
1 |
Trace |
0.1 |
|
| perennial
ryegrass |
Lolium perenne |
24 |
3 to 45% |
20.2 |
|
| purple-leaved
willowherb |
Epilobium
ciliatum |
2 |
Trace to 3% |
1.5 |
|
| quackgrass |
Agropyron repens |
1 |
5% |
5.0 |
|
| rabbitfoot
clover |
Trifolium
arvense |
3 |
2 to 5% |
3.0 |
|
| red
clover |
Trifolium
pratense |
11 |
1 to 10% |
3.9 |
|
| red
fescue |
Festuca rubra |
8 |
3 to 15% |
5.8 |
|
| English
plantain |
Plantago
lanceolata |
7 |
Trace to 3% |
1.9 |
|
| toad
rush |
Juncus bufonius |
1 |
Trace |
0.1 |
|
| white
clover |
Trifolium repens |
7 |
Trace to 5% |
2.6 |
|
| white
sweet-clover |
Melilotus alba |
23 |
2 to 70% |
28.6 |
|
| willowherb |
Epilobium sp. |
13 |
Trace to 15% |
3.1 |
|
| yarrow |
Achillea
millefolium |
3 |
Trace to 2% |
0.7 |
|
| yellow
salsify |
Tragopogon
dubius |
1 |
3% |
3.0 |
|
| unclassified-composite |
unclassified-composite |
6 |
Trace to 3% |
1.8 |
|
| unclassified-grass |
unclassified-grass |
10 |
1 to 15% |
4.8 |
|
| unclassified-herb |
unclassified-herb |
3 |
Trace |
0.1 |
|
| unclassified-wheat |
unclassified-wheat |
2 |
Trace |
0.1 |
|
| Shrubs |
|
| beaked hazelnut |
Corylus cornuta |
1 |
3% |
3.0 |
|
| common
snowberry |
Symphoricarpos
albus |
2 |
5% |
5.0 |
|
| dull
Oregon-grape |
Mahonia nervosa |
3 |
1 to 5% |
3.0 |
|
| Himalayan
blackberry |
Rubus discolor |
11 |
Trace to 25% |
3.7 |
|
| nootka
rose |
Rosa nutkana |
1 |
15% |
15.0 |
|
| oceanspray |
Holodiscus
discolor |
4 |
3 to 10% |
5.8 |
|
| red-flowering
current |
Ribes sanguineum |
1 |
3% |
3.0 |
|
| red-osier
dogwood |
Cornus
stolonifera |
3 |
5 to 15% |
11.7 |
|
| rose |
Rosa sp. |
10 |
1 to 10% |
6.3 |
|
| Scot's
broom |
Cytisus
scoparius |
4 |
2% |
2.0 |
|
| trailing
blackberry |
Rubus ursinus |
1 |
Trace |
0.1 |
|
| Trees |
|
| Douglas-fir |
Pseudotsuga menziesii |
5 |
2 to 15% |
8.4 |
|
| red
alder |
Alnus rubra |
15 |
1 to 15% |
6.5 |
|
| Scouler's
willow |
Salix
scouleriana |
11 |
10 to 50% |
22.3 |
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| Notes: There were a total of 26
quadrats |
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| 1: No. of Quadrats Found = Number of quadrats in which the species was
observed |
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| Bold are
planted native species, underline indicates volunteer native species. (All |
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| other entries are non-native or invasive.)
Unknown species are assumed to be weeds or invasives. |
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| Mean percent cover is calculated for the number of quadrats where the
plant was observed. |
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