Flowering Stem of Lunaria Annua
The common name of lunaria is honesty. The annua variety has violet lilac flowers. The flowers are scentless.…
Mammillaria Dolichocentra
Mammillaria dolichocentra is a cactus with pale rose or reddish crimson flowers. The stem is six to…
Mammillaria Haageana
The mammillaria haageana cactus has bright carmine rose flowers. The stem is bullet shaped when young…
Mammillaria Sanguinea
The mammillaria sanguinea cactus has dark red flowers. The stem is short and columnar. This cactus is…
Masdevallia Lindeni
Masdevallia lindeni flowers are brilliant violet, rose, or magenta, with a white eye. Each stem has…
Portion of Flowering Stem and Detached Flower of Maurandya Barclayana
The flower lobes of maurandya barclayana are a violet purple color. The tube is downy, curved, and greenish.…
Megarrhiza Californica
Pictured are the flowering stem with racemose male flowers and the solitary fertiles ones from the same…
Flowering Branch, Single Flower Head, and Leaf of Mimosa Pudica
The common name of mimosa pudica is humble plant. The flowers are red and bloom in summer. The stem…
Longitudinal Section of Morchella Esculenta
Common morel is the common name of morchella esculenta. The stem is one to three inches high and the…
Flowering Stem of Morina Longifolia
The flowers of morina longifolia are white while in bud but change to a delicate pink and ultimately…
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…
Stem of Nepenthes Distillatoria
Nepenthes is known as the pitcher plant. The distillatoria variety has bright, light green leaves. Pitchers…
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…
Optunia Platyacantha
Optunia platyacantha is a variety of prickly pear. This plant has a low branching stem. The spines have…
Osyris Alba
Osyris alba flowers are white and bloom in July. The fruit is red and pea sized. The leaves alternate…
Bulbs of Oxalis Crenata
Oxalis crenata flowers are yellow striped with purple. The flowers bloom in September. The stem is erect…
Flowering Branch of Paeonia Albiflora
Paeonia albiflora flowers usually have white or pink petals. The flowers are one and a half to two inches…
Flowering Branch of Paeonia Wittmanniana
The common name of paeonia is peony. The wittmanniana variety yellowish white flowers. The flowers bloom…
Papaver Rhoeas Flore-Pleno
Papaver rhoeas has the common names common corn poppy and redweed. The flowers are large and scarlet.…
Inflorescence and Leaf of Pardanthus Chinensis
Pardanthus chinensis flowers are nearly two inches across and are orange colored spotted with purple-brown.…
Inflorescence and Leaf of Pelargonium Tricolor
The two upper petals of pelargonium tricolor flowers are very dark red and the three lower petals are…
Branch of Pereski Grandiflora
Pereski grandiflora is a synonym of pereski grandifolia. The common name of pereski is barbados gooseberry.…
Pereskia Poeppigii
The leaves of pereskia poeppigii are cylindrical and green. The stem is low and upright. The spines…
Stem of Young Pine Attached by Peridermium Pini
Illustrated in a stem of young pine attacked by peridermium pini. Peridermium pini is a fungus that…
Phalaenopsis Esmeralda
The common name of phalaenopsis is moth orchid. The esmeralda variety has rose colored flowers one and…
Branch of Phyllanthus Angustifolius
Phyllanthus angustifolius flowers are red and bloom in July. The stem is two feet high.
Phyllanthus Chantrieri
Phyllanthus chantrieri flowers are brick-red with pale yellow hairs. The flowers bloom in summer. Branches…
Pilocereus Brunnowii
Pilocereus brunnowii is a type of cactus. The stem is erect and cylindrical. There are about thirteen…
Pilocereus Dautwitzii
The pilocereus dautwitzii cactus as a bright green, oblong stem. Tufts of small white spines spread…
Pilocereus Houlletii
The flowers of pilocereus houlletii are violet with hints of red and yellow. The stem is strong and…
Orders of Balsaminaceae, Rhamnaceae, Vitaceae, and Tiliaceae
The orders pictured are balsaminaceae, rhamnaceae, vitaceae, and tiliaceae. The flowers of these orders…
Achimenes Longiflora
Achimenes longiflora flowers are violet-blue and whitish beneath. The flowers grow alone on each stem.…
Aconitum Uncinatum
The common name of Aconite uncinatum is wild monkshood. The flowers are blue and the leaves are thick,…
Aconitum Autumnale
The common name of Aconite autumnal is autumn aconite. The stem is three to five feet tall. The leaves…
Alstroemeria Pulchella
The flowers of Alstroemeria pulchella are dark red tipped with green and spotted inside with brown.…
Amorphophallus Rivieri
The common names of Amorphophallus riviera are devil's tongue and snake palm. Pictured is the flower…
Anemone Hortensis
The common name of anemone hortensis is broad-leaved garden anemone. The flowers are red, rosy purple,…
Anemone Nemorosa
The common name of Anemone nemorosa is wood anemone. The flowers are one inch across and are white or…
Anemone Japonica
The stem of Anemone japonica is two to three feet tall. The plant is soft and downy, with short hairs.…
Anthericum Liliago
The common name of Anthericum liliago is St. Bernard's Lily. The stem is simple and two to three feet…
Aphyllon Uniflorum
Aphyllon uniflorum has white or violet flowers. Each stem has one flower and is leafless. The plant…
Apicra Pentagona
Apicra pentagona has an erect stem that is six to twelve inches tall. The flowers are a greenish color.…
Aquilegia Canadensis
The common name of aquilegia canadensis is common columbine. The plant grows one to two feet tall. There…
Aquilegia Alpina
The stem of Aquilegia alpina is nearly one foot tall. The plant has two to five flowers. The flowers…
White Pine Tree Stem with Fungus
Pictured is the stem of a white pine tree attacked by the white pine blister-rust fungus, Cronartium…
Argemone Mexicana
The common name of Argemone mexicana is prickly poppy. The plant grow one to two feet tall. The flowers…
Arnica Montana
The common names of Arnica montana are mountain tobacco and mountain snuff. The plant is a foot high…
Aster Macrophyllus
Aster macrophyllus has a reddish, angular stem and grows about two and a half feet tall. The leaves…
Aster Cordifolius
Aster cordifolius has a smooth stem with thin, rough, usually hairy leaves. The flowers heads are blue…
Astilbe Astilboides
The stem of Astilbe astilboides grows two to three feet tall. The leaves are oval and oblong. The flowers…
Phyllostachys Ruscifolia
Phyllostachys ruscifolia is a variety of bamboo. It grows one to three feet tall. The stem zigzags in…
Begonia Boliviensis
The stem of Begonia boliviensis droops and grows two to three feet tall. The flowers are scarlet, long,…
Cross Section of Stem of Bignonia
Illustrated is the cross section of a stem of a tropical climber of the bignonia family. The stem is…
Blechnum Occidentale
The leaves of Blechnum occidentale grow from an erect, rigid stem which is covered with brownish scales.…
Bloomeria Aurea
The flowering stem of Bloomeria aurea is six to eighteen inches tall. The flowers are numerous and bright…
Skeleton of Opuntia Stem
Illustrated is a skeleton of an opuntia stem. These skeleton stems are sometimes made into walking-sticks.
Cactus Spines
The cactus spines are not connected with the axis of the stem or branches. The spines emerge from the…
Calonyction Aculeatum
The common name of calonyction aculeatum is moonflower. The stem grows ten to twenty feet high and has…
Campanula Pulla
Campanula pulla is a perennial that grows three to eight inches tall. Each stem is normally one flowered.