Plants

Ostrich fern
Ostrich fern (Matteuccia struthiopteris) emerging in spring. Newtown Square, PA.
Cinnamon wattle
Flowers and phyllodes on stem of cinnamon wattle (Acacia leprosa). Longwood Gardens, Kennett Square, Pennsylvania.
Acacia passage
Cinnamon wattle (Acacia leprosa) in bloom. Longwood Gardens, Kennett Square, PA.
Chenille plant
Inflorescences of chenille plant (Acalypha hispida). Longwood Gardens, Kennett Square, PA.
Maple samara
Maple samara caught on spider silk. Swarthmore, PA.
Everglades palm fruit
Fruiting branch of everglades palm (Acoelorrhaphe wrightii). Fruit is edible. Longwood Gardens, Kennett Square, PA.
Everglades palm fruit
Everglades palm (Acoelorrhaphe wrightii) fruit. Longwood Gardens, Kennett Square, PA.
Hardy kiwi
Hardy kiwi (Actinidia arguta) flowers. Female. Swarthmore, PA.
Tree-of-heaven
Female tree-of-heaven (Ailanthus altissima). Springfield, PA.
Tree-of-heaven leaf gland
Tree-of-heaven (Ailanthus altissima) leaf gland. Rose Tree Park, Media, PA.
Tree-of-heaven samara
Tree-of-heaven (Ailanthus altissima) samara. Little Crum Creek Park, Swarthmore, PA.
Wild garlic
Wild garlic (Allium vineale). Hildacy Preserve, Media, PA.
White bracts on red ginger Alpinia purpurata
‘Madikeri White’ cultivar of red ginger (Alpinia purpurata). Not a pure A. purpurata cultivar. First crossed with Etlingera elatior, followed by some backcrossing. Then seeds were dosed of gamma radiation. One of the hundreds of progeny matured into the plant now called ‘Madikeri White’. Madikeri is a town in India that has fog and a very nice waterfall, hence name. Hawaii Tropical Botanical Garden, Papaikou, HI.
Lace flower
Lace flower (Alsobia dianthiflora). Longwood Gardens, Kennett Square, PA.
Variegated porcelain berry
Variegated porcelain berry (Ampelopsis glandulosa var. brevipedunculata). John Heinz National Wildlife Refuge, Philadelphia, PA.
Variegated porcelain berry
Variegated porcelain berry (Ampelopsis glandulosa var. brevipedunculata). John Heinz National Wildlife Refuge, Philadelphia, PA.
Giant fern leaf
Frond of a giant fern (Angiopteris evecta). Longwood Gardens’ meadow, Kennett Square, PA.
Anthurium spadix
Maturing spadix on Anthurium ‘Pandola’ (a hybrid). Longwood Gardens, Kennett Square, PA.
Marina strawberry tree
Pendulous, urceolate flowers of the Marina strawberry tree (Arbutus ‘Marina’). Longwood Gardens, Kennett Square, PA.
Dwarf misteltoe
Dwarf misteltoe (Arceuthobium sp.). Sisters, Oregon.
Burdock fruit
Burdock (Arctium sp.) seed heads covered with snow. Crum Woods, Swarthmore, PA.
Mauna Kea silversword
Mauna Kea silversword (Argyroxiphium sandwicense). Mauna Kea, Hawai’i.
Rigid sagebrush (Artemisia rigida)
Rigid sagebrush (Artemisia rigida). Chimney Rock, Prineville, OR.
Jackfruit
Jackfruit (Artocarpus heterophyllus) in seat belt. Swarthmore, PA.
Jackfruit
Jackfruit (Artocarpus heterophyllus). Hue, Vietnam.
Swamp milkweed pods
Dehiscing seed pods of swamp milkweed (Asclepias incarnata). Swarthmore, PA.
Swamp milkweed pods
Seed of swamp milkweed (Asclepias incarnata) in pods. Swarthmore, PA.
Swamp milkweed seed
Swamp milkweed (Asclepias incarnata) seed. Swarthmore, PA.
Swamp milkweed seed
Swamp milkweed (Asclepias incarnata) seed. Swarthmore, PA.
Swamp milkweed
Seedling of swamp milkweed (Asclepius incarnata). Swarthmore, PA.
Swamp milkweed seedling
Swamp milkweed (Asclepias incarnata) seedling. Swarthmore, PA.
Swamp milkweed seedling
Swamp milkweed (Asclepias incarnata) seedling. Swarthmore, PA.
Swamp milkweed seeds
Jar full of swamp milkweed (Asclepias incarnata) seeds. Swarthmore, Pa.
Common milkweed
Common milkweed (Asclepias syriaca) pod with dehiscing seeds. Binky Lee Preserve, Chester Springs, PA.
Common milkweed flower
Swamp milkweed (Asclepias incarnata) seed. Swarthmore, PA.
Aster yellows phytoplasma
Coneflower (Echinacea purpurea) infected with aster yellows phytoplasma (Acholeplasmatales). Typically transmitted by the aster leafhopper (Macrosteles quadrilineatus). Swarthmore, PA.
Black mangrove
Black mangrove (Avicennia germinans) growing in lagoon. Isla Santa Cruz, Galápagos.
Groundsel tree
Groundsel tree (Baccharis halimifolia) with spider. John Heniz National Wildlife Refuge, Philadelphia, PA.
Common daisy
Common daisy (Bellis perennis) growing on lawn. Kew Gardens, London, UK.
Galápagos lava cactus
Galápagos lava cactus (Brachycereus nesioticus). Isla Fernandina, Galápagos.
Harvest Brodiaea
Harvest Brodiaea (Brodiaea elegans). Yosemite National Park, CA.
Bromedliad leaves
Phytotelmata in axil of bromeliad. Longwood Gardens, Kennett Square.
Bromeliad
Bromeliad on tree branch. La Selva, Costa Rica.
Scarlet powder-puff tree flower
Inflorescence of scarlet powder-puff tree (Calliandra haematocephala). Longwood Gardens, Kennett Square, PA.
California incense-cedar
California incense-cedar (Calocedrus decurrens) growing next to a burned conifer log. Yosemite, CA.
Sedge
Carex sp.. Pink Hill serpentine barrens, Tyler Arboretum, Media, PA.
Sedge flowers
Carex sp.. Pink Hill serpentine barrens, Tyler Arboretum, Media, PA.
Golden shower tree
Golden shower tree (Cassia fistula). Guanacaste, Costa Rica.
Galápagos bitterbush
Red drupes on Galápagos bitterbush (Castela galapageia). Isla Isabela, Galápagos.
Wavyleaf paintbrush
Wavyleaf paintbrush (Castilleja applegatei). Yosemite National Park, CA.
Crimson fountain grass
Crimson fountain grass (Cenchrus setaceus) growing on lava. Kekaha Kai Beach Park, Kalaoa, HI.
Coastal sandbur
Coastal sandbur (Cenchrus spinifex). Cancun, Mexico.
Old man cactus
Old man cactus (Cephalocereus senilis). Longwood Gardens, Kennett Square, PA.
Curveseed butterwort
Curveseed butterwort (Ceratocephala testiculata). Crooked River National Grassland, Madras, OR.
Eastern redbud
Eastern redbud (Cercis canadensis) in protective tube. Hildacy Preserve, Media, PA.
Fame-thrower palm
Fruiting branch on flame-thrower palm (Chambeyronia macrocarpa). Longwood Gardens, Kennett Square, PA.
Glory in the snow
Glory in the snow (Chionodoxa forbesii) in the snow. Swarthmore College, Swarthmore, PA.
Princess vine
Princess vine (Cissus sicyoides). Longwood Gardens, Kennett Square, PA.
Grapefruit flowers
Grapefruit (Citrus × paradisi) flowers. Longwood Gardens, Kennet Square, PA.
Virgin's bower
Virgin’s bower (Clematis virginiana) infructescence. Binky Lee Preserve, Chester Springs, PA.
Cleome flowers
Spider flower (Cleome hassleriana). Mohonk Mountain House, New Paltz, NY.
Bronze-leaf clerodendron
Bronze-leaf clerodendron (Clerodendrum quadriloculare) in bloom. Longwood Gardens, Kennett Square, PA.
Coconut grove
Grove of coconuts (Cocos nucifera) near Chain of Craters Road in Volcanoes National Park, Hawai’i.
Coconut grove on cliff
Coconuts (Cocus nucifera) near cliff. Volcanoes National Park, Hawai’i.
Danger sign on coconut tree
“Beware of falling coconuts” sign. Nāpo’opo’o Park, Hawai’i.
Small-flowered blue-eyed Mary
Small-flowered blue-eyed Mary (Collinsia parvifolia). Crooked River National Grassland, Madras, OR.
Colpomenia sp.
Colpomenia sp. Malibu Beach State Park, Malibu, CA.
Columnea sanguinolenta
Columnea sanguinolenta. Guanacaste province, Costa Rica.
Columnea sanguinolenta
Columnea sanguinolenta. Guanacaste province, Costa Rica.
Crocus
Conifer sapling next to burned conifer log. Yosemite, CA.
Chaparral dodder
Chaparral dodder (Cuscuta californica) flower. Eaton Canyon, Los Angeles, CA.
Chaparral dodder
Chaparral dodder (Cuscuta californica). Eaton Canyon, Los Angeles, CA.
Chaparral dodder
Chaparral dodder (Cuscuta californica). Eaton Canyon, Los Angeles, CA.
Dodder haustoria
Cuscuta cross section. On Chenopodium album.
Dodder haustoria
Dodder (Cuscuta sp.) cross section, stained.
Dodder flowers
Dodder (Cuscuta sp.). John Heinz National Wildlife Refuge, Philadelphia, PA.
Dodder
Dodder (Cuscuta sp.). Swarthmore, PA.
Dodder
Dodder (Cuscuta sp.) on goat’s foot Convolulus (Ipomoea pes-caprae). Isla Santiago, Galapagos.
Swamp dodder
Swamp dodder (Cuscuta gronovii). Longwood Gardens, Kennett Square, PA.
Dodder haustoria
Stained cross-section of Cuscuta haustoria attached to Chenopodium.
Dodder
Dodder (Cuscuta sp.) growing on roadside plants. Jamaica.
Saltmarsh dodder
Saltmarsh dodder (Cuscuta pacifica) attacking Salicornia. Baylands Nature Preserve, Palo Alto, CA.
Saltmarsh dodder
Saltmarsh dodder (Cuscuta pacifica) on pickleweed (Salicornia). Waldport, OR.
Dodder
Dodder (Cuscuta sp.) growing on edge of lake. Pennsylvania.
Silver cholla
Silver cholla (Cylindropuntia echinocarpa). Joshua Tree, CA.
Queen Anne's lace
Pigmented flowers in the center of a Queen Anne’s lace (Daucus carota) umbel.
Dendrochilum filiforme
Dendrochilum filiforme. Longwood Gardens, Kennett Square, PA.
Dendrochilum wenzelii
Dendrochilum wenzelii (Orchidacaeae). Longwood Gardens, Kennett Square, PA.
Flat-branched tree-clubmoss
Flat-branched tree-clubmoss (Dendrolycopodium obscurum). Jessup, PA.
Mexican yam
Caudex of Mexican yam (Dioscorea mexicana). Longwood Gardens, Kennett Square, PA.
Mexican yam caudex
Close-up the caudex of Mexican yam (Dioscorea mexicana). Longwood Gardens, Kennett Square, PA.
Dipteryx oleifera seed
Dipteryx oleifera pod with eggs and larvae. La Selva, Costa Rica.
Fork-leaved sundew
Fork-leaved sundew (Drosera binata) with fungus gnat. Longwood Gardens’ meadow, Kennett Square, PA.
Fork-leaved sundew
Fork-leaved sundew (Drosera binata). Longwood Gardens’ meadow, Kennett Square, PA.
Forked-leaved sundew
Glandular trichomes on forked-leaf sundew (Drosera binata). Longwood Gardens, Kennett Square, PA.
Candy barrel cactus
Echinocacrus ingens thorns. Huntington Gardens, Pasadena, CA.
Golden barrel cactus
Golden barrel cactus (Echinocactus grusonii). Philadelphia Flower Show, Philadelphia, PA.
Engelmann's hedgehog cactus
Engelmann’s hedgehog cactus (Echinocereus engelmannii). Joshua Tree National Park, CA.
Mojave mound cactus
Mojave mound cactus (Echinocereus mojavensis). Joshua Tree National Park, CA.
Mojave mound cactus
Mojave mound cactus (Echinocereus mojavensis). Joshua Tree National Park, CA.
Beechdrop at base of beech
Beechdrop (Epifagus virginiana) inflorescence at base of beech tree. Wawa Preserve, Media, PA.
Fireweed
Infructescence of fireweed (Erechtites hieraciifolius). Hildacy Preserve, Media, PA.
Golden yarrow
Golden yarrow (Eriophyllum confertiflorum). Yosemite National Park, CA.
Beach-creeper
Beach-creeper (Ernodea littoralis). Cozumel, Mexico.
Yellow trout lily
Yellow trout lily (Erythronium americanum). Swarthmore, PA.
Yellow trout lily
Yellow trout lily (Erythronium americanum). Tyler Arboretum, Media, PA.
Yellow trout lily
Yellow trout lily (Erythronium americanum). Swarthmore, PA.
Euphorbia amplexicaulis
Euphorbia amplexicaulis. Isla Genovesa, Galápagos.
Chamaesyce
Chamaesyce (Euphorbia amplexicaulis). Isla Santiago, Galapagos.
Hollow Joe-Pye-weed
Hollow Joe-Pye weed (Eutrochium fistulosum) amid goldenrod. Longwood Gardens, Kennett Square, PA.
Hollow Joe-Pye weed
Hollow Joe-Pye weed (Eutrochium fistulosum) amid goldenrod. Longwood Gardens, Kennett Square, PA.
American beech trunk
Inosculation of ID plate by American beech (Fagus grandifolia). Winterthur, Delaware.
Japanese knotweed
Japanese knotweed (Fallopia japonica) emerging near stream. Crum Woods, Swarthmore, PA.
Alpine strawberry seedlings
Seedlings of pineapple-flavored alpine strawberry (Fragaria vesca).
Yellow fritillary
Yellow fritillary (Fritillaria pudica). Crooked River National Grassland, Madras, OR.
Common snowdrop
Common snowdrop (Galanthus nivalis). Swarthmore, PA.
Gopher apple
Gopher apple (Geobalanus oblongifolius). Highlands Hammock State Park, Sebring, FL.
Honey locust
Gleditsia triacanthos (honey locust) branch in winter. John Heinz National Wildlife Refuge, Philadelphia, PA.
Gomphrena haageana
Gomphrena haageana bud. Longwood Gardens, Kennett Square, PA.
Orange button flower
Inflorescence of orange button flower (Gomphrena haageana). Longwood Gardens, Kennett Square, PA.
Darwin's cotton
Darwin’s cotton (Gossypium darwinii). Isla Isabela, Galápagos.
Darwin's cotton
Gossypium darwinii. Isla Isabela, Galápagos.
Witch hazel flowers
Snow-covered flowers of Hamamelis ‘Jelena’ (H. mollis x H. japonica). Scott Arboretum, Swarthmore College, Swarthmore, PA.
American witch-hazel
American witch-hazel (Hamamelis virginiana). Longwood Gardens, Kennett Square, PA.
English ivy on sycamore
English ivy (Hedera helix) choking a sycamore tree. Swarthmore, PA.
Hibiscus flower
Red and purple cultivar of Hibiscus rosa-sinensis. Longwood Gardens, Kennett Square, PA.
Chinese hibiscus flower
Chinese hibiscus (Hibiscus rosa-sinensis ‘Nightfire’) about to bloom. Longwood Gardens, Kennett Square, PA.
Hibiscus rosa-sinensis ′Nightfire′
Hibiscus rosa-sinensis ′Nightfire′ with petals curling inward. At Longwood Gardens in Kennett Square, Pennsylvania.
Manchineel fruit
Manchineel (Hippomane mancinella). Isla Isabela, Galápagos.
Wax plant flower
Wax plant (Hoya carnosa) flower with nectar droplet. Longwood Gardens, Kennett Square, PA.
Shining clubmoss
Shining clubmoss (Huperzia lucidula; Huperziaceae). Springfield, PA.
Giant water lily spines
Spines on giant water lily (Victoria sp.). Longwood Gardens, Kennett Square, PA.
Darwin's cotton
Darwin’s cotton (Gossypium darwinii). Isla Isabela, Galapagos.
Common jewelweed
Common jewelweed (Impatiens capensis). John Heinz National Wildlife Refuge, Tinicum Township, Pennsylvania.
Mountain laurel with bumble bee
Mountain laurel (Kalmia latifolia) being visited by a bumble bee. Mohonk Mountain House, New Paltz, NY.
Mountain laurel
Mountain laurel (Kalmia latifolia) growing on a rock face. Mohonk Mountain House, New Paltz, NY.
Mountain laurel
Underside of mountain laurel (Kalmia latifolia) flower. Mohonk Mountain House, New Paltz, NY.
Mountain laurel
Mountain laurel (Kalmia latifolia) inflorescence. Mohonk Mountain House, New Paltz, NY.
Mountain laurel
Mountain laurel (Kalmia latifolia; Ericaceae) growing on a rock face near Mohonk Mountain House, New Paltz, New York (USA).
Japanese larch seed cone
Japanese larch (Larix kaempferi) seed cone. Tyler Arboretum, Media, PA.
Japanese larch strobili
Female strobilus of Japanese larch (Larix kaempferi). Sometimes called a larch rose. Tyler Arboretum, Media, PA.
Japanese larch
Japanese larch (larix kaempferi)
Laurencia sp.
Laurencia sp. in intertidal. Malibu, CA.
Red algae
Laurencia sp.. Malibu, California.
Bitterroot
Bitterroot (Lewisia rediviva). Chimney Rock, Prineville, OR.
Lily flower
Stigmatic fluid on lily (Lilium sp.) style. Longwood Gardens. Kennett Square, PA.
American sweetgum fruit
American sweetgum (Liquidambar styraciflua) fruit. Mohonk Mountain House, New Paltz, NY.
American sweetgum
American sweetgum (Liquidambar styraciflua; Altingiaceae). John Heinz National Wildlife Refuge, Philadelphia, PA.
Bigseed biscuitroot
Bigseed biscuitroot (Lomatium macrocarpum). Chimney Rock, Prineville, Oregon.
Twin-spined cactus
Twin-spined cactus (Mammillaria geminispina)
Cucamonga manroot
Cucamonga manroot (Marah macrocarpus) fruit. Eaton Canyon, Pasadena, CA.
Chilicothe
Marah macrocarpa (chilicothe) fruit. Eaton Canyon, Los Angeles, CA.
Oregon manroot
Oregon manroot (Marah oreganus; Cucurbitaceae). Cape Perpetua, OR.
Galápagos leatherleaf fruit
Fruit of Galápagos leatherleaf (Maytenus octogona). Celastraceae. Isla Santa Cruz, Galápagos.
Ohi'a
Ohi’a tree (Metrosideros polymorpha). Volcanoes National Park, Hawai’i.
Slender phlox
Slender phlox (Microsteris gracilis) growing inside mountain lion paw print. Crooked River National Grassland, Madras, OR.
Slender phlox
Slender phlox (Microsteris gracilis) with single flower. Crooked River National Grassland, Madras, OR.
Broad-leaved moss
Moss (Mnium sp.) covered by fungal hyphae. Springfield, PA.
Scarlet beebalm
Scartlet beebalm (Monarda didyma) inflorescence. Swarthmore, PA.
Ghost plants
Ghost plants (Monotropa uniflora) emerging from soil. Crum Woods, Swarthmore, PA.
Ghost plant
Flower of ghost plant (Monotropa uniflora). Media, PA.
Ghost plant
Ghost plant (Monotropa uniflora). Espopus Bend Nature Preserve, Saugerties, NY.
Ghost plant
Ghost plant (Monotropa uniflora). Espopus Bend Nature Preserve, Saugerties, NY.
Partridgeberry, coral fungus, Indian pipe
Partridgeberry (Mitchella repens), coral fungus (Ramaria sp.), and Indian pipe (Monotropa uniflora) next to rotting log. Platte Clove Preserve, Elka Park, NY.
Moss pattern
Moss growing in an interesting pattern on a tree trunk. Costa Rica.
White moss
White moss (Leucobryum albidum), brocade moss (Hypnum imponens) and dusky fork-moss (Dicranum fuscescens). IDs tentative. Mohonk Mountain House, New Paltz, NY.
Blood Bananas
Cluster of young fruit on Blood Banana (Musa acuminata ‘Rowe Red’). Longwood Gardens, Kennett Square, PA.
'Rajapuri' bananas
Fruit stalk on Musa (AAB Group) ‘Rajapuri’ (Musa x paradisiaca ‘Rajapuri’) bananas, a triploid, seedless banana from India. Longwood Gardens, Kennett Square, PA.
Ant plant
Base of an ant plant (Myrmecodia sp.). In the coffee family (Rubiaceae). C. Fred Edwards Conservatory, Huntington Botanical Garden, Pasadena, CA.
Water mimosa
Water mimosa (Neptunia oleracea) infloresence . Longwood Gardens, Kennett Square, PA.
Florida prickly pear
Florida prickly pear (Opuntia austrina). Highlands Hammock State Park, Sebring, FL.
Prickly pear
Close-up of prickly pear (Opuntia echios gigantea) stem showing spines (modified leaves) and glochids (tufts of short bristles, which are probably modified trichomes). Cerro Dragon, Isla Santa Cruz, Galápagos.
Prickly pear
Prickly pear (Opuntia echios gigantea). Cerro Dragón, Isla Santa Cruz, Galápagos.
Orchid pollinarium
Longwood Gardens, Kennett Square, PA..
Java tea
Java tea (Orthosiphon stamineus) inflorescence. At the Hawaiian Tropical Botanical Garden, Papaikou, HI.
Stinking passionflower
Fruit of stinking passionflower (Passiflora foetida). Isla Santa Cruz, Galápagos.
Stinking passionflower
Stinking passionflower (Passiflora foetida). Isla Santa Cruz, Galápagos Islands.
Perfumed passionflower
Perfumed passionflower (Passiflora vitifolia). La Selva, Costa Rica.
Princess tree seed pod
Opened pod of princess tree (Paulownia tomentosa). Longwood Gardens, Kennett Square, PA.
Princess tree seeds
Winged seeds of princess tree (Paulownia tomentosa). Longwood Gardens, Kennett Square, PA.
Princess tree seeds
Winged seeds of the princess tree (Paulownia tomentosa). Longwood Gardens, Kennett Square, PA.
Princess tree seed
Longwood Gardens, Kennett Square, PA.
Princess trees
Allée of princess trees (Paulownia tomentosa) in fog. Longwood Gardens, Kennett Square, PA.
Philodendron radiatum
Sketonized leaves of Philodendron radiatum. La Selva, Costa Rica.
Spiny phlox
Spiny phlox (Phlox hoodii). Crooked River National Grassland, Madras, OR.
Moss phlox
Pink Hill, Tyler Arboretum, Lima, PA.
Moss phlox
Moss phlox (Phlox subulata) near serpentine rocks. Pink Hill Serpentine Barrens, Tyler Arboretum, Media, PA.
Moss phlox
Clumps of moss phlox (Phlox subulata) at Unionville Serpentine Barren, Unionville, PA.
Bollean mistletoe
Phoradendron bolleanum ssp. densum. Joshua Tree National Park, CA.
Desert mistletoe
Desert mistletoe (Phoradendron californicum). Joshua Tree National Park, CA.
Desert mistletoe
Desert mistletoe (Phoradendron californicum). Joshua Tree National Park, CA.
Darby Creek
Common reed (Phragmites australis) on banks of Darby Creek. John Heinz National Wildlife Refuge, Philadelphia, PA.
Tomatillo
Seeds of Physalis philadelphica (tomatillo) inside dried fruit. Swarthmore, PA.
Resin
Pine tree resin. Mohonk Mountain House, New Paltz, NY.
Black pepper
Black pepper (Piper nigrum) fruit. Hue, Vietnam.
Stag horn fern
Platycerium superbum (Polypodiaceae). Longwood Gardens, Kennett Square, PA.
Jabuticaba
Jabuticaba (Plinia cauliflora) fruit. Longwood Gardens, Kennett Square, PA.
Mayapples in beech tree
Mayapples (Podophyllum peltatum) growing at base of beech tree. Crum Woods, Swarthmore, PA.
Pollen on car
Pollen covering car window. Swarthmore, PA.
'Ae
‘Ae (Polypodium pellucidum vulcanicum) growing inside cracks in lava. Volcanoes National Park, HI.
Haircap moss on rock
Shawagunk conglomerate partially covered with haircap moss (Polytrichaceae), ferns, and lichens. Mohonk Mountain House, New Paltz.
Purslane
Purslane (Portulaca sp.) in rock crack. Isla Santiago, Galapagos.
Elephant bush
Elephant bush (Portulacaria afra). At the time, unreported on the Galapagos. I reported it. Isla Rabida, Galápagos.
Saltwater bush
Saltwater bush (Rachicallis americana). Cozumel, Mexico.
Red mangrove
Red mangrove (Rhizophora mangle) seedlings on maternal tree. Key Largo, FL.
Rhopalomyia
Rhopalomyia sp. on sagebrush. Chimney Rock, Prineville, OR.
Surface roots
Exposed roots covered in pine needles. Mohonk Mountain House, New Paltz, NY.
Aster yellows phytoplasma
Aster yellows phytoplasma on rudbeckia. Swarthmore, PA.
Snowplant
Fruiting snowplant (Sarcodes sanguinea). Yosemite National Park, CA.
Snowplant
Flowering snowplant (Sarcodes sanguinea). Yosemite National Park, CA.
Sassafrass sapling
Sassafrass (Sassafras albidum). Hildacy Farm Preserve, Media, PA.
Thorn shrub
Thorn shrub (Scutia spicata var. pauciflora) with fruit. Urbina Bay, outskirts of Volcan Alcedo. Isla Isabela. Galápagos, Ecuador.
Giant sequoia bark
Giant sequoia (Sequoiadendron giganteum) bark. Yosemite Park, CA.
Scarlet sesban pods
Scarlet sesban (Sesbania punicea) pods. Zolfo Springs, FL.
Scarlet sesbane fruit
Scarlet sesbane (Sesbania punicea) fruit pod. Zolfo Springs, FL.
Sea purslane
Sea purslane (Sesuvium portulacastrum). Cerro Dragón, Isla Santa Cruz, Galápagos.
Sea purslane
Sea purslane (Sesuvium portulacastrum). Cozumel, Mexico.
Green bristletail
Green bristletail (Setaria viridis) growing on cinder block wall. WaR3house 3, Swarthmore, PA.
Oneseed bur cucumber (Sicyos angulatus) fruit
Spined fruit of oneseed bur cucumber (Sicyos angulatus). Hildacy Preserve, Media, PA.
White campion capsule
Silene latifolia (white campion) capsule with seeds. Ridley Creek State Park, Edgemont, PA.
Common greenbrier
Burned stems of common greenbrier (Smilax rotundifolia). Unionville serpentine barrens (Unionville, Pennsylvania).
Chalice vine
Chalice vine (Solandra maxima). Longwood Gardens, Kennett Square, PA.
Carolina horse-nettle
Fruit of Solanum carolinense (Carolina horse-nettle) in snow. Hildacy Preserve, Media, PA.
Carolina horse-nettle
Carolina horse-nettle (Solanum carolinense) fruit.
Prairie dropseed on fire
Controlled burn of prairie dropseed (Sporobolus heterolepis). Swarthmore College, Swarthmore, PA.Media, PA.
Prairie dropseed
Prairie dropseed (Sporobolus heterolepis) after a controlled burn. Swarthmore College, Swarthmore, PA.
Prairie dropseed
Controlled burn of prairie dropseed (Sporobolus heterolepis). Swarthmore College, Swarthmore, PA.
Narrow-leaved bird-of-paradis
Narrow-leaved bird-of-paradise (Strelitzia juncea) with nectar dripping down inflorescence. Longwood Gardens, Kennett Square, PA.
Bird-of-paradise flower
‘Mandela’s Gold’ bird-of-paradise flower (Strelitzia reginae). Longwood Gardens, Kennett Square, Pennsylvania.
Strophanthus courmontii
Strophanthus courmontii. Kew Gardens, London, UK.
Eastern skunk cabbage spadix
Flowers on an inflorescence (spadix) of eastern skunk cabbage (Symplocarpus foetidus). Swarthmore, PA.
Eastern skunk cabbage
Eastern skunk cabbage (Symplocarpus foetidus) flowering. Rose Tree Park, Media, PA.
Eastern skunk cabbages
Eastern skunk cabbages (Symplocarpus foetidus) in snow. Crum Woods, Swarthmore College, Pennsylvania.
Tortula moss
Tortula moss (Syntrichia caninervis). Apparently collects water via microgrooves on leaf-tip awns (among several other methods). Those awns are what give the moss the whitish bloom. Dioecious. Crooked River National Grassland, Madras, OR.
Bald cypress knees
Bald cypress (Taxodium distichum). Taylor Memorial Arboretum, Wallingford, PA.
Cacao flower
Cacao (Theobroma cacao) flower. Longwood Gardens, Kennett Square, PA.
Cacao fruit
Flower and developing pod on trunk of a chocolate tree (Theobroma cacao). Longwood Gardens’ meadow, Kennett Square, PA.
Theobroma cacao flower
Splayed variant of a Theobroma cacao flower.
Bulbous airplant
Bulbous airplant (Tillandsia bulbosa) on tree. La Selva, Costa Rica.
Air plant
Air plant (Tillandsia sp.) on lichen-covered pine branch. Zolfo Springs, FL.
Small ball moss
Small ball moss (Tillandsia recurvata) on trunk of a pine tree. Zolfo Springs, FL.
Pacific poison oak
Pacific poison oak (Toxicodendron diversilobum). Eaton Canyon, Pasadena, CA.
Poison ivy
New leaves of poison ivy (Toxicodendron radicans). Crum Woods, Swarthmore, PA.
Poison ivy
Adventitious roots of poison ivy (Toxicodendron radicans). Crum Woods, Swarthmore, PA.
Poison ivy
Poison ivy (Toxicodendron radicans) leaves. Hildacy Preserve, Media, PA.
Yellow salsify
Yellow salsify (Tragopogon dubius). Crooked River National Grassland, Madras, OR.
Jamaican feverplant
Jamaican feverplant (Tribulus cistoides). Isla Bartolomé, Galápagos.
Galápagos carpenter bee
Galápagos carpenter bee (Xylocopa darwini) on goat’s head (Tribulus terrestris). Newly introduced to Genovesa Island. Galápagos Islands, Ecuador.
Goat's head
Flowering goat’s head (Tribulus terrestris). Genovesa, Galápagos Islands, Ecuador.
Narrow-leaved cattails
Narrow-leaved cattails (Typha angustifolia). John Heinz National Wildlife Refuge, Philadelphia, PA.
MacDaniel's palm
Fruit developing on a MacDaniel’s palm (Veitchia macdanielsii). Kew Gardens, London, UK.
Victoria amazonica leaf
Victoria amazonica leaf with water droplets. Longwood Gardens, Kennett Square, PA.
Giant Amazonian water lily
Abaxial veins of a giant Amazonian water lily (Victoria x ‘Longwood Hybrid’). Longwood Gardens, Kennett Square, PA.
Victoria 'Longwood Hybrid' waterlily
Underside of a Victoria ‘Longwood Hybrid’ waterlily after a wind storm (Victoria amazonica x Victoria cruziana). Longwood Gardens, Kennett Square, PA.
Victoria 'Longwood Hybrid' waterlily
Spines on vertical edge of Victoria ‘Longwood Hybrid’ waterlily (Victoria cruziana x V. amazonica). Longwood Gardens, Kennett Square, PA.
Victoria water platter
A strong wind storm flipped up the edge of this Victoria water platter to show the intricate midribs (hollow beams) that support the leaf, plus the razor-sharp spines that protect it. You can also see one of the two notches that allow rain to drain off the leaf. Longwood Gardens created this monster (up to 8′ in diameter) by crossing two water lily species (Victoria amazonica x Victoria cruziana). Kennett Square, PA.
European grapes
Grapes (Vitis vinifera ‘Muscat of Alexandria). Longwood Gardens, Kennett Square, PA.
Wild bergamot
Wild bergamot (Monarda fistulosa) flower bud. Hildacy Farm Preserve, Media, PA.
Joshua tree
Yucca brevifolia bending toward ground. Joshua Tree National Park, California.