29
May
2009
Pontederia cordata L.
Flowers | Liliopsida
2
0

Scientific name - Pontederia cordata L.

Genus name is given to commemorate Linne Guilio Pontedera Italian physicist (1688-1756), professor and director of the Botanic Garden at Padua in Padua in 1719-1757.

Synonyms --

Popular names - pickerelweed, Wampee.

Distribution and Habitat - originally from the temperate zones of North America.

Description - aquatic species perennial, 45-60 cm tall, thin rhizome. Leaves basal, erect, ovat-lanceolata, with the cord; long petiole. Flowers violet-blue, rarely white, with an upper lobe yellow blossom disposed in ear type. Perianth campanulata, Revol tube after blooming, 6 stamens, 3 more unequal, May 3 children; anther elliptic, blue. Blooms in June-September. The fruit contains a single seed, indehiscent.

Growth rate --

Tolerant - can be adjusted for shallow water or deeper.

Requirements - grow in full sun and semi-shade, on moist soil or water.

Management --

Propagation - dividing rhizomes, spring. The runners, summer. The seeds soon after ripening.

Diseases and pests - aphids.

Natural partners and Garden - Hibiscus moscheutos, Nymphaea cordata, Peltandra virginica, Phragmites australis, Pistia stratioites,  Sagittaria latifolia, Sagittaria lancifolia, Spartina cynosuroides, Typha latifolia.

Cultivars and varieties - P. cordata 'Alba' grows in full sun or semi-shade, on moist soil or in water 25 inches deep. 60-75 cm high. P. cordata 'angustifolia' blue flowers, dark green leaves. P. cordata 'Pink Pons' pink-purple flowers, grows in full sun or semi-shade in moist soil or in water 15 inches deep. P. cordata 'Singapore Pink' Pink flowers.

P. cordata var. cordata - strain up to 1 m tallme, leaves deltoid to triangular-ovata-lanceolata, the deep heart or truncata, 20 cm long, 15 cm long ear.

P. cordata var. lanceolata.

Properties and Uses - infusion of this plant was used as a contraceptive method.

Myth, Legend and Folklore --

References

Blanche E. Dean - Wild Flowers of Alabama and Adjoining States - The University of Alabama Press, 1983

Daniel E. Moerman - Native American ethnobotany - Timber Press, 1998

Donovan Stewart Correll - Aquatic and Wetland Plants of Southwestern United States - Stanford University Press, 1975

Greg Speichert, Sue Speichert - Encyclopedia of Water Garden Plants - Timber Press, 2004

Helen Nash, Steve Stroupe, Perry D. Slocum, Bob Romar - Complete Guide to Water Plants - Sterling, 2004

Photos
Top
See also
Top
Flowers
Lychnis coronaria - the king's beard, flower wedding

Herbaceous biennial. Stem erect, silvery-pubescent, simple or branched, 30-80 cm high. Basal leaves are petiolate, oblong-lanceolata, spatulate, 5-10 cm x 10-25 mm, margins entire, top acute, the caulinare are Sesi, oblong-ovata, Hirsute, 5.12 cm long. Blossom panic terminal peduncle 10 cm long

 
Paeonia lactiflora

Herbaceous perennial, 50-80 cm tall, vigorous root-branched, cylindrical, 5-20 cm long and 1-2.5 cm in diameter. Strain fasciculated, erect, branched in upper parts. Leaves alternate, Terni-compound, the last segment with red ribbed, oblong-elliptic; foliolele are ongust-ovata or elliptic, 8-12 x 2-4 cm. 6.10 cm long stalks

 
Delphinium ajacis

Ajacis delphinium - annual species, native to southern Europe, cultivated in different forms as ornamental horticulture.

 
Dianthus sylvestris

Dianthus sylvestris - perennial species, the stem short and woody. Increase the debris, limestone bedrock, from 0 to 2400 m altitude. Species are cultivated as ornamental for rocarii.

 
Leonotis Leonurus

Leonotis Leonurus - a species native to southern Africa but cultivated throughout the world as ornamental species in parks and gardens.

Leonotis grecum derived from 'Leon' = lion, and 'Otis' = ear alluding to the shape of the corolla.

 
Liliopsida
Bletilla striata

Bletilla are easy to grow,  to shady borders, where they make a handsome textural combination with ferns.

 
Anthurium amnicola

Anthurium amnicola - herbaceous perennial, epiphytic, originally from Panama, rainforest grows from 600 to 900 m altitude.

 
Ursinum Allium L. - Aliu of June, Ramsons, wild garlic

Herbaceous perennial, bulb. Oblung bulb. Leaves 2-3, lanceolata, margin entire, top acute, 30 x 3.6 cm. Flowers white, 6-20 hermaphrodite, in whole or pointed umbela backs, caduca; 6 tepale lanceolata, about 1 cm, 6 stamens, superior ovary, peduncle 2 cm. Blooms in May-June. Fruit capsule.

 
Hyacinthus orientalis

Hyacinthus orientalis - bulbous perennial with linear to lance-shaped, channeled, bright green leaves, 15-35 cm long. Is classified as an ornamental, and is native to the Mediterranean region. The essential oils found only in the flowers have been used in cosmetics and soap fragrances.

 
Four new species of Maranta L. Marantaceae in Brazil

Family Marantaceae species are distributed, the majority of 80% in tropical regions, 11% in Asia and 9% in Africa (Hammel, 1986). The family includes about 530 species and 31 genera, are the most widespread genus Calathea.

 
Comments
Top
comments powered by Disqus
   Add to iGoogle
Last posts

Categories

Links