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The flowers of monstera deliciosa are yellow and bloom in the summer. The fruit of the plant has a flavor similar to pineapple.

Monstera Deliciosa

The flowers of monstera deliciosa are yellow and bloom in the summer. The fruit of the plant has a flavor…

Pictured is the upper portion of the plant, a radical leaf, and a flower of moricandia sonchifolia. The flowers are a pale, violet blue. The flowers are one inch in diameter and bloom in March.

Moricandia Sonchifolia

Pictured is the upper portion of the plant, a radical leaf, and a flower of moricandia sonchifolia.…

The flowers are moringa aptera are pale yellow. The leaves are one foot or more in length. The entire plant grows between fifteen and twenty feet tall.

Portion of Inflorescence of Moringa Aptera

The flowers are moringa aptera are pale yellow. The leaves are one foot or more in length. The entire…

Musa superba is a variety of the banana or plantain tree. This tree has a pseudo-stem swollen at the base. The tree grows fourteen feet tall.

Flowering Plant and Detached Flower of Musa Superba

Musa superba is a variety of the banana or plantain tree. This tree has a pseudo-stem swollen at the…

Mussaenda macrophylla flowers are orange and a large segment of the calyx is white. The flowers bloom in July and August. The plant grows six feet tall.

Mussaenda Macrophylla

Mussaenda macrophylla flowers are orange and a large segment of the calyx is white. The flowers bloom…

Nepenthes is known as the pitcher plant. The distillatoria variety has bright, light green leaves. Pitchers are six to eight inches long.

Stem of Nepenthes Distillatoria

Nepenthes is known as the pitcher plant. The distillatoria variety has bright, light green leaves. Pitchers…

Pitcher plant is the common name of nepenthes. The madagascariensis variety has a crimson pitcher. The pitcher is a little over two inches long.

Leaf and Pitcher of Nepenthes Madagascariensis

Pitcher plant is the common name of nepenthes. The madagascariensis variety has a crimson pitcher. The…

The common name of nepenthes is pitcher plant. The northiana variety has purple spotted pitchers. The pitchers are nearly one foot long.

Leaf and Pitcher of Nepenthes Northiana

The common name of nepenthes is pitcher plant. The northiana variety has purple spotted pitchers. The…

Pictured are the habit, detached portion of inflorescence, and pitcher of the phyllamphora variety of the pitcher plant. The leaves are large, oblong, and bright green. The pitchers are the same colors as the leaves and are five to ten inches long.

Nepenthes Phyllamphora

Pictured are the habit, detached portion of inflorescence, and pitcher of the phyllamphora variety of…

The flowers of nepenthes rafflesiana are yellow and brown. The pitchers are greenish yellow with brown markings.

Nepenthes Rafflesiana

The flowers of nepenthes rafflesiana are yellow and brown. The pitchers are greenish yellow with brown…

Bead plant is the common name of netera depressa. Pictured is the plants in flower and fruit and the detached flower and fruit. The flowers are greenish and very small. The fruit is round and bright orange.

Bead Plant

Bead plant is the common name of netera depressa. Pictured is the plants in flower and fruit and the…

Nicotiana acutiflora is a variety of tobacco. The flowers are pure white. The flowers bloom from June until frost.

Plant and Detached Flower of Nicotiana Acutiflora

Nicotiana acutiflora is a variety of tobacco. The flowers are pure white. The flowers bloom from June…

Nicotiana suaveolens is a sweet scented variety of tobacco. The flowers are white and fragrant. The flowers bloom in summer. The plant grows between one and two feet tall.

Flowers of Nicotiana Suaveolens

Nicotiana suaveolens is a sweet scented variety of tobacco. The flowers are white and fragrant. The…

Nigella has many common names including devil-in-the-bush, fennel flower, and love-in-a-mist. The sativa variety has bluish flowers that bloom in July. The plant grows one and a half feet tall.

Flower Stem with Leaf of Nigella Sativa

Nigella has many common names including devil-in-the-bush, fennel flower, and love-in-a-mist. The sativa…

The corolla of the nolana paradoxa flower is funnel shaped. The flowers bloom in summer. This plant is native to Chili.

Flowering Branchlet of Nolana Paradoxa

The corolla of the nolana paradoxa flower is funnel shaped. The flowers bloom in summer. This plant…

Yellow water lily is the common name of nuphar luteum. The flowers are yellow with a brandy-like scent. The stalks rise a little above the surface of the water.

Yellow Water Lily

Yellow water lily is the common name of nuphar luteum. The flowers are yellow with a brandy-like scent.…

Common white water lily is the common name of nymphaea alba. The flowers are white and have no scent. The flowers are four to six inches across and float on the surface of the water.

Common White Water Lily

Common white water lily is the common name of nymphaea alba. The flowers are white and have no scent.…

The common name of oenthera is evening primrose. The acaulis variety has white flowers fading into red. The flowers bloom May to September. The plant grows six inches high.

Habit and Detached Leaf and Flower of Oenothera Acaulis

The common name of oenthera is evening primrose. The acaulis variety has white flowers fading into red.…

Omphalodes verna flowers are blue with a white throat. The flowers bloom March to May. The plant grows six inches tall.

Omphalodes Verna

Omphalodes verna flowers are blue with a white throat. The flowers bloom March to May. The plant grows…

Butterfly plant is the common name of oncidium papilio. The flowers are pale, golden yellow barred with chesnut brown. The flowers sometimes resemble a butterfly in shape.

Habit and Detached Flower of Oncidium Papilio

Butterfly plant is the common name of oncidium papilio. The flowers are pale, golden yellow barred with…

Opuntia basilaris is a variety of prickly pear with large, rose purple flowers. The flowers bloom in summer. The plant is covered with short, brown bristles.

Opuntia Basilaris

Opuntia basilaris is a variety of prickly pear with large, rose purple flowers. The flowers bloom in…

Opuntia boliviana is a variety of prickly pear. The joints of the plant are about two inches long and are pale green. The prickles are three to four inches long.

Opuntia Boliviana

Opuntia boliviana is a variety of prickly pear. The joints of the plant are about two inches long and…

Optunia platyacantha is a variety of prickly pear. This plant has a low branching stem. The spines have different forms and sizes.

Optunia Platyacantha

Optunia platyacantha is a variety of prickly pear. This plant has a low branching stem. The spines have…

The sepals are the three narrower parts situated behind, and overlapped by, the petals. The dark, central spot is the opening of the nectary.

Flower of Laelia Albida

The sepals are the three narrower parts situated behind, and overlapped by, the petals. The dark, central…

Ourisia coccinea flowers are scarlet with cream colored anthers. The flowers are one and a half inches long and droop. The plant grows between six and twelve inches tall.

Ourisia Coccinea

Ourisia coccinea flowers are scarlet with cream colored anthers. The flowers are one and a half inches…

Pictured is the pistil from the flower of a pea. A is the pistil from the side, (o) is the ovary, (s) is the style, and (st) is the stigma. B is the pistil opened lengthwise. C is the cross section to show the position of placenta.

Pistil from Flower of Pea

Pictured is the pistil from the flower of a pea. A is the pistil from the side, (o) is the ovary, (s)…

The cross section of the ovary of the iris flower shows three carpels joined at center into a mass. The three parts are clearly traceable.

Cross Section of Ovary of Flower of Iris

The cross section of the ovary of the iris flower shows three carpels joined at center into a mass.…

Mountain peony is the common name of paeonia moutan. The flowers are large and vary in color. The plant grows three feet tall.

Flowering Branch of Mountain Peony

Mountain peony is the common name of paeonia moutan. The flowers are large and vary in color. The plant…

Mountain peony is the common name of paeonia moutan. The flowers are large and vary in color. The plant grows three feet tall.

Flowering Branch of Mountain Peony

Mountain peony is the common name of paeonia moutan. The flowers are large and vary in color. The plant…

Pancratium illyricum flowers are small and fragrant. The leaves are broad and strongly veined. The plant grows one and a half feet tall.

Pancratium Illyricum

Pancratium illyricum flowers are small and fragrant. The leaves are broad and strongly veined. The plant…

Pancratium maritimum flowers are long and very fragrant. The plant grows two feet tall.

Habit and Detached Flower of Pancratium Maritiumum

Pancratium maritimum flowers are long and very fragrant. The plant grows two feet tall.

The common name of papaver is poppy. Papaver bracteatum flowers are red and bloom in May. The plant grows four feet tall.

Papaver Bracteatum

The common name of papaver is poppy. Papaver bracteatum flowers are red and bloom in May. The plant…

Paulownia imperialis flowers are pale violet with dark spots inside. The flowers are one and a half to two inches long and bloom in June. The plant grows thirty feet high.

Paulownia Imperialis

Paulownia imperialis flowers are pale violet with dark spots inside. The flowers are one and a half…

The common name of pavia rubra is red buckeye. The flowers are bright red and bloom in May. The plant grows ten feet high.

Flowering Branch of Pavia Rubra

The common name of pavia rubra is red buckeye. The flowers are bright red and bloom in May. The plant…

The common name of pelargonium is stork's bill. The endlicherianum variety has large, deep rose colored flowers. The two larger petals are marked with five deep purple nerves. The plant grows two feet tall.

Pelargonium Endlicherianum

The common name of pelargonium is stork's bill. The endlicherianum variety has large, deep rose colored…

The common name of pelargonium peltatum is ivy-leaved pelargonium. The flowers vary from white to red and vary in size between large and small. The plant grows two feet tall.

Pelargonium Peltatum

The common name of pelargonium peltatum is ivy-leaved pelargonium. The flowers vary from white to red…

The common name of pelargonium zonale is horseshoe geranium. The flowers vary from all shades of red to white. The plant grows two feet tall.

Flowering Branch of Pelargonium Zonale

The common name of pelargonium zonale is horseshoe geranium. The flowers vary from all shades of red…

Pentas carnea flowers are disposed in numerous, large heads. The flowers bloom almost all year round. The plant grows one and a half feet tall.

Flowering Branch and Detached Flower of Pentas Carnea

Pentas carnea flowers are disposed in numerous, large heads. The flowers bloom almost all year round.…

The common name of pentstemon is beard tongue. The barbatus variety has light pink or light red flowers. The plant is tall and many flowered.

Pentstemon Barbatus

The common name of pentstemon is beard tongue. The barbatus variety has light pink or light red flowers.…

The flowers of pentstemon diffusus are showy and purple. The flowers bloom in September. The plant grows one and a half feet tall.

Upper Portion of Plant of Pentstemon Diffusus

The flowers of pentstemon diffusus are showy and purple. The flowers bloom in September. The plant grows…

The flowers of pentstemon hartwegi are scarlet or blood colored. The flowers are tubular and funnel shaped. The plant grows two feet tall.

Upper Portion of Plant of Pentstemon Hartwegi

The flowers of pentstemon hartwegi are scarlet or blood colored. The flowers are tubular and funnel…

Peperomia saundersii leaves are thick and fleshy, about five inches long. The plant grows between eight and ten inches high.

Peperomia Saundersii

Peperomia saundersii leaves are thick and fleshy, about five inches long. The plant grows between eight…

Pictured is a petaloid perianth as seen in lilium concolor pulchellum. All parts are petaloid.

Petaloid Perianth

Pictured is a petaloid perianth as seen in lilium concolor pulchellum. All parts are petaloid.

The common names of peristeria elata are Dove or Holy Ghost flower. The flowers are white with small lilac specks. The flowers appear July to September. The plant grows four feet tall.

Peristeria Elata

The common names of peristeria elata are Dove or Holy Ghost flower. The flowers are white with small…

Philadelphus gordonianus is a variety of mock orange. The flowers are white and scentless. The plant grows ten feet tall.

Flowering Branch of Philadelphus Gordonianus

Philadelphus gordonianus is a variety of mock orange. The flowers are white and scentless. The plant…

Phlox paniculata flowers are pink-purple, varying to white. The flowers bloom in August. The plant is erect, smooth, rough, or hairy.

Inflorescence of Phlox Paniculata

Phlox paniculata flowers are pink-purple, varying to white. The flowers bloom in August. The plant is…

Japan Medlar, Japan Quince, and Loquat are the common names of photinia japonica. The fruit is the size of a small apple and a pale, orange-red color. The plant grows between ten and twenty feet tall.

Inflorescence and Single Fruit of Photinia Japonica

Japan Medlar, Japan Quince, and Loquat are the common names of photinia japonica. The fruit is the size…

The common name of phygelius capensis is cape figwort. The flowers are scarlet and bloom in summer. The plant grows three feet tall.

Phygelius Capensis

The common name of phygelius capensis is cape figwort. The flowers are scarlet and bloom in summer.…

The petals of phyllocactus biformis flowers are narrow and about two or three inches long. The flowers are a pale, rosy pink color. The plant branches freely and is three feet tall.

Phyllocactus Biformis

The petals of phyllocactus biformis flowers are narrow and about two or three inches long. The flowers…

The common name of phyteuma is horned rampion. The charmelii variety has blue flowers in spherical heads. The flowers bloom May to August. The plant grows between six and twelve inches tall.

Phyteuma Charmelii

The common name of phyteuma is horned rampion. The charmelii variety has blue flowers in spherical heads.…

The common name of phyteuma is horned rampion. The humile variety has blue flowers in globose heads. The flowers bloom in July. The plant grows three inches tall.

Habit and Detached Flower of Phyteuma Humile

The common name of phyteuma is horned rampion. The humile variety has blue flowers in globose heads.…

The common names of phytolacca decandra are Virginian poke weed, pigeon-berry and red-ink plant. The flowers are white. In the autumn dark purple berries appear that are filled with crimson juice. The roots are large, fleshy, and poisonous.

Racemose Inflorescence of Phytolacca Decandra

The common names of phytolacca decandra are Virginian poke weed, pigeon-berry and red-ink plant. The…

The common name of pimelea is rice flower. The ligustrina hypericina variety has white flowers in round heads. The plant grows between five and six feet tall.

Pimelea Ligustrina Hypericina

The common name of pimelea is rice flower. The ligustrina hypericina variety has white flowers in round…

Schizaeaceae: 1, aneimia, sporangium. Osmundaceae: 2, Osmunda, sporangium; a, front view, b, back view. Salviniaceae: 3, salvinia, a, whole plant; b, section of sporocarps showing sporangia. Marsileaceae: 4, marsilea, a, whole plant; b, sporocarp germinating; c, sporocarp emitting gelatinous thread with sori; 5, pilularia, a, cross section of sporocarp; b, sporocarp emitting sporangia.

Schizaeaceae, Osmundaceae, Salviniaceae, and Marrsileaceae

Schizaeaceae: 1, aneimia, sporangium. Osmundaceae: 2, Osmunda, sporangium; a, front view, b, back view.…

Cycadaceae is an order with more or less woody plants. The stems are thick, unbranched, columnar, or tuberous. Ginkogoaceae is an order of much branched trees with deciduous leaves.

Cycadaceae and Ginkogoaceae

Cycadaceae is an order with more or less woody plants. The stems are thick, unbranched, columnar, or…

Taxaceae order consists of the yew family. The Pinaceae order consists of the pine family. The Gnetaceae order consists of gnetum family, which has semi-woody plants of diverse habit.

Taxaceae, Pinaceae, and Gnetaceae

Taxaceae order consists of the yew family. The Pinaceae order consists of the pine family. The Gnetaceae…

The typhaceae order consists of perennial marsh herbs with creeping rootstocks. The pandanaceae order consists of shrubby plants with simple or branched stems and prop roots. The naiadaceae order consists of immersed aquatic herbs.

Typhaceae, Pandanaceae, and Naiadaceae Orders

The typhaceae order consists of perennial marsh herbs with creeping rootstocks. The pandanaceae order…

Alismaceae is an order of herbaceous marsh plants with milky juice. Butomaceae is an order of aquatic or marsh herbs. Hydrocharitaceae is an order of submerged aquatic herbs. Pictured are various parts of flowers of those orders.

Alismaceae, Butomaceae, and Hydrocharitaceae Orders

Alismaceae is an order of herbaceous marsh plants with milky juice. Butomaceae is an order of aquatic…

Gramineae order consists of the grass family. Pictured are (1a) a part of a grass panicle, (1b) spikelet, (2) avena, (2a) portion of panicle, (2b), spikelet, (e.g.) empty glume, (fl.g.) flowering glume or lemma, (pal) palet or palea, (2c), ground plan of spikelet, (3) phleum, spikelet, and (4), phalaris, sheath and ligule.

Gramineae Order

Gramineae order consists of the grass family. Pictured are (1a) a part of a grass panicle, (1b) spikelet,…

Pictured from the cyperaceae orders are (1) scirpus, (1a) a portion of inflorescence, (1b) flower, (2) eriophorum, spikelet, (3) carex, (3a) inflorescence, and (3b) vertical section of perigynium. Pictured from the palmaceae order are (4) chamaerops, (4a) spathe and spadix, and (4b) floral diagram. Pictured from the cyclanthaceae order are (5) cyclanthus, inflorescence, and (6) carludovica, inflorescence.

Cyperaceae, Palmaceae, and Cyclanthaceae Orders

Pictured from the cyperaceae orders are (1) scirpus, (1a) a portion of inflorescence, (1b) flower, (2)…