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| ARTICLES |
| Tree rings can reveal hurricane record | |
| Yahoo News | 09/20/2006 |
| The Cult of Capsaisin | |
| BoingBoing | 09/19/2006 |
| From Woad Warriors to Cancer-Buster | |
| New Scientist.com | 08/14/2006 |
| Cultivating Wisteria Lane | |
| New Scientist.com | 08/10/2006 |
| Escaped golf-course grass frees gene genie in the US | |
| New Scientist.com | 08/10/2006 |
| RECENT CHANGES |
| Carrot, Wild | Updated | 8/23/2006 |
| Carrot, Wild | Updated | 8/23/2006 |
| Sumac, Winged | Updated | 8/22/2006 |
| Sumac, Staghorn | Updated | 8/22/2006 |
| Sumac, Winged | Updated | 8/22/2006 |
| Sumac, Staghorn | Updated | 8/22/2006 |
| Horseweed | Image Added | 8/22/2006 |
| Toadflax, Yellow | Image Added | 8/20/2006 |
| Toadflax, Yellow | Updated | 8/20/2006 |
| Toadflax, Yellow | UpdatePlant | 8/20/2006 |
| Toadflax, Yellow | Plant Added | 8/20/2006 |
| Toadflax, Yellow | UpdatePlant | 8/20/2006 |
| Yarrow | Image Added | 8/20/2006 |
| Copperleaf | Image Added | 8/20/2006 |
| Copperleaf | Image Added | 8/20/2006 |
| Prickly Pear | Image Added | 8/20/2006 |
| Violet, Blue | Image Added | 8/20/2006 |
| Copperleaf | Updated | 8/20/2006 |
| Copperleaf | Plant Added | 8/20/2006 |
| Copperleaf | UpdatePlant | 8/20/2006 |
| Spurge family | Family Added | 8/20/2006 |
| Spurge family | Updated | 8/20/2006 |
| Ginseng, American | Updated | 8/18/2006 |
| Joe-Pye Weed, Spotted | Updated | 8/18/2006 |
| Amaranth | Image Added | 8/17/2006 |
| Mallow, Seashore | Image Added | 8/17/2006 |
| Mallow, Seashore | Image Added | 8/17/2006 |
| Purslane | Image Added | 8/17/2006 |
| Evening Primrose, Common | Image Added | 8/17/2006 |
| Squirreltail Grass | Updated | 8/17/2006 |
| PLANT INDEX | ||
| By Family | Alphabetical | Recently Updated |
  Agrimony | Agrimonia gryposepala |
 Ailanthus | Ailanthus altissima |
  Amaranth | Amaranthus |
| Angelica | Angelica atropurpurea |
| Aspen, Quaking | Populus tremuloides |
 Autumn Olive | Elaeagnus umbellata |
 Bamboo |
 Basil | Ocimum gratissimum |
| Beach Greens | Arenaria peploides |
| Beach Rye Grass | Elymus arenarius |
| Black Cohosh | Cimicifuga |
| Black Walnut | Juglans nigra |
  Bloodroot | Sanguinaria canadensis |
| Bluebells | Mertensia paniculata |
| Bluebells, Virginia | Mertensia virginica |
| Blueberry | Vaccinium |
| Bluets | Houstonia caerulea |
| Boneset | Eupatorium perfoliatum |
| Brambles | Rubus spp. |
| Briar, Bull | Smilax bona-nox |
| Briar, Green | Smilax rotundifolia |
| Burdock | Arctium minus |
| Buttercup | Ranunculus bulbosus |
 Buttonbush | Cephalanthus occidentalis |
| Carrot, Wild | Daucus carota |
| Catnip | Nepeta cataria |
| Cattail | Typha latifolia |
| Chesnut | Castanea |
| Chickweed | Stellaria media |
| Chicory | Cichorium intybus |
| Cleavers | Galium aparine |
| Clover, Red | Trifolium pratense |
| Clover, White | Trifolium repens |
| Coltsfoot | Petasites |
| Copperleaf | Acalypha virginica |
| Cow Parsnip | Heracleum lanatum |
| Crapemyrtle | Lagerstroemia indica |
| Currant, Northern Red | Ribes triste |
| Dandelion | Taraxacum officinale |
| Day Flower, Asiatic | Commelina communis |
| Day Lily | Hemerocallis |
| Dock, Arctic | Rumex arcticus |
| Dock, Broadleaf | Rumex |
| Dock, Curly | Rumex crispus |
| Dogbane | Apocynum spp. |
| Dogwood, Dwarf | Cornus canadensis |
| Dogwood, Eastern Flowering | Cornus florida |
| Dogwood, Red Osier | Cornus stolonifera |
 Dogwood, Silky | Cornus amomum |
| Elderberry | Sambucus |
| English Ivy | Hedera helix |
| Epizote | Chenopodium ambrosioides |
| Evening Primrose, Common | Oenothera biennis |
| Field Mustard | Brassica |
| Fireweed, Common | Epilobium angustifolium |
| Fireweed, Dwarf | Epilobium latifolium |
| Forget-Me-Not, Alpine | Myosotis alpestris |
| Foxtail Grass | Setaria |
| Garlic Mustard | Brassica |
| Ginkgo | Ginkgo biloba |
| Ginseng, American | Panax |
| Golden Club | Orontium aquaticum |
| Goldenrod | Solidago |
| Grape, Wild | Vitis spp. |
| Grasses (generally) |
| Greenhead Coneflower | Rudbeckia laciniata |
| Ground Ivy | Glechoma hederacea |
| Hemlock, Poison | Conium maculatum |
| Hemlock, Water | Cicuta maculata |
| Henbit | Lamium |
| Hickory, Shagbark | Carya |
| Holly, American | Ilex opaca |
| Honeysuckle | Lonicera |
| Horse Nettle | Solanum carolinense |
| Horsetail | Equisetum |
| Horseweed | Conyza canadensis |
| Huckleberry | Vaccinium |
| Hydrangea | Hydrangea macrophylla |
| Hydrangea, Wild | Hydrangea |
| Indian Cucumber | Medeola virginiana |
| Jack-in-the-Pulpit | Arisaema |
| Jewelweed, Pale | Imaptiens pallida |
| Jewelweed, Spotted | Impatiens biflora |
| Jimsonweed | Datura wrightii |
| Joe-Pye Weed, Spotted | Eupatorium maculatum |
| Lady's Thumb | Polygonum persicaria |
| Lamb's Quarters | Chenopodium album |
| Laurel, Mountain | Kalmia latifolia |
| Lemon Balm |
| Lilac | Syringa |
| Lupine, Nootka | Lupinus nootkatensis |
| Magnolia, Star | Magnolia |
| Mallow, Seashore | Kosteletzkya virginica |
| Mallow, Swamp Rose | Hibiscus moscheutos |
| Maple, Japanese | Acer palmatum |
| Maple, Japanese Split Leaf | Acer palmatum |
| Maple, Red | Acer rubrum |
| May Apple | Podophyllum peltatum |
| Milkweed, Common | Asclepias syriaca |
| Milkweed, Swamp | Asclepias incarnata |
| Monkshood | Aconitum delphinifolium |
| Mulberry | Morus |
| Mullein | Verbascum thapsus |
| New England Aster | Aster novae-angliae |
| Nodding Thistle | Carduus nutans |
| Oak, Red | Quercus |
| Oak, White | Quercus |
| Onion, Wild | Allium spp. |
| Oxeye Daisy | Chrysanthemum |
| Parsley | Petroselinum |
| Pawpaw | Asimina triloba |
| Pennsylvania Bittercress | Cardamine pensylvanica |
| Peppergrass, Field | Lepidium campestre |
| Peppermint | Mentha piperita |
| Periwinkle | Vinca minor |
| Phlox, Wild Blue | Phlox divaricata |
| Pickerelweed | Pontederia cordata |
| Pine, Japanese Umbrella |
| Pineapple Weed | Matricaria matricariodes |
| Plantain, Common | Plantago major |
| Plantain, Seaside | Plantago juncoides |
| Poison Ivy | Rhus radicans |
| Pokeweed | Phytolacca americana |
| Prickly Pear | Opuntia |
| Princess Tree | Paulownia tomentosa |
| Purple Dead Nettle | Lamium purpureum |
| Purslane | Portulaca oleracea |
| Ragweed, Common | Ambrosia artemisifolia |
 Ragweed, Great | Ambrosia trifida |
| Redbud | Cercis canadensis |
| Reed | Phragmites communis |
| Rhododendron, Catawba | Rhododendron catawbiense |
| Rose | Rosa spp. |
| Rose, Domestic | Rosa |
| Rosemary | Rosmarinus |
| Rue Anemone |
| Sage | Salvia |
| Sassafras | Sassafras albidum |
| Sheep Sorrel | Rumex acetosella |
| Shepard's Purse | Capsella |
| Silktree | Albizia julibrissin |
| Smartweed, Swamp | Polygonum amphibium |
| Spearmint | Mentha spicata |
| Spicebush | Lindera benzoin |
| Spring Beauty | Claytonia virginica |
| Squirreltail Grass | Hordeum jubatum |
| Stinging Nettle | Urtica dioica |
| Strawberry, False |
| Strawberry, Wild | Fragaria virginiana |
| Sumac, Staghorn | Rhus glabra |
| Sumac, Winged | Rhus copallina |
| Sweet Cicely | Osmorhiza |
| Sweetgum | Liquidambar |
| Sycamore, American | Platanus occidentalis |
| Thistle, Bull | Cirsium vulgare |
| Thistle, Canadian | Cirsium arvense |
| Thyme | Thymus |
| Toadflax, Yellow | Linaria vulgaris |
| Tomato | Lycopersicon esculentum |
| Trumpet Vine | Campsis radicans |
| Tulip Poplar | Liriodendron |
| Vervain, Blue | Verbena hastata |
| Vervain, Slender | Verbena halei |
| Violet, Blue | Viola papilionaceae |
| Virginia Creeper | Parthenocissus |
| Water Lily | Nymphaeae |
| Watercress | Nasturtium officinale |
| Wild Yam |
| Wintercress | Barbarea vulgaris |
| Wintergreen, Spotted | Chimaphila maculata |
| Wisteria | Wisteria |
| Wood Sorrel | Oxalis stricta |
| Yarrow | Achillea millefolium |
| Yew | Taxus |
| Yucca | Yucca filamentosa |
| PLANT IMAGES |
Pokeweed
| DATBASE INFORMATION |
Overview Annotated Bibliography Links| JOURNAL |
| Great Falls Plant Discoveries New plants added I spent some time in Great Falls, VA recently, near the Potomac River. I was able to identify a few new plants in the floodplain area, including Slender Vervain, Swamp Milkweed, and Swamp Smartweed. The river was also unusually low, which allowed me to get pretty far out by using the normally-submerged, but now exposed, rock outcroppings. There were many plants growing on these exposed islands, many of which must be able to survive extended full or partial submersion. Seashore Mallow grew commonly in this environment, along with several other plants I have not yet been able to identify. On one particular outcropping, I found a plant I didn't know, but I managed to narrow it down to some type of Dogwood (Cornus). It was not until the next day, while flipping through a plant book, that I found an aside-reference which allowed me to identify it as a Silky Dogwood (Cornus amomum). So, I went back out there later that day, headed down to the river, and jumped from rock to rock until I found the same individual and got some photos. 8/12/2006 10:23:34 PM |
| Thoughts on the Polygonaceae Etymology of the genus name The genus Polygonum, within the family polygonaceae, is easily recognized by the evenly-spaced, enlarged, sheathed nodes along the stem, where the angle of growth usually changes slightly. The term 'poly' is, of course, the greek root 'many'. The latter part of the name is from the greek word 'gona', meaning knee or joint. Therefore, this plant is so-named for its many joints. The common term 'polygon' has the exact same root, referring to a figure with 'many joints'. 8/12/2006 10:17:42 PM |
| More Interface Improvements Plant and Image Tagging I am in the process of tagging the plants and plant images in the database. I have added a couple new features: 'Browse Plants' and 'Browse Images'. In this way you can search the database by looking for plants of pictures which have been tagged with relevant bits of data. For example, you could look-up a list of all plants tagged with the phrase 'red stem'. 8/10/2006 11:11:08 AM |
| Mid-Atlantic Coastal Plants Added Bethany Beach, DE I was in Bethany Beach, DE for a weekend recently, where I got several picture of thel local flora. A new plant was added to the database, Blue Vervain. It is in the Verbena family and also has the genus name Verbena, which is apparently latin for 'Sacred Plant'. The area is also full of Seashore Mallow and Swamp Rose Mallow. 8/10/2006 11:08:47 AM |
| Alaska Plants Added southern alaska, cook inlet, kenai river. Fireweed, Dwarf Dogwood, Aspen, Beach Greens, Cow Parsnip, Monkshood, Northern Red Currant, Alpine Forget-Me-Not, etc. 7/30/2006 10:03:28 PM |
