Hen with chicks
| Hen with chicks | ||||||||||||
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Hen with chicks ( Tolmiea menziesii ) |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Tolmiea | ||||||||||||
| Torr. & A.Gray | ||||||||||||
| Scientific name of the species | ||||||||||||
| Tolmiea menziesii | ||||||||||||
| ( Pursh ) Torr. & A.Gray |
Hen with chicks ( Tolmiea menziesii ), also live journal called, is the only species of the genus Tolmiea in the family Saxifragaceae (Saxifragaceae). It is native to northwestern North America and is used as an ornamental plant in parks, gardens and rooms.
description
Vegetative characteristics
The hen with chicks is an evergreen, perennial , herbaceous plant . A rhizome is formed as a permanent organ; the durable leaf bases can be seen on it.
The stalked leaves are arranged in a basal rosette and on the stem. The leaf blade is egg-shaped with a length of up to 10 centimeters and weakly five- to seven-lobed with a heart-shaped blade base and usually a pointed, rarely blunt upper end. The leaf edge is more or less irregularly serrated to almost toothed and each leaf tooth ends in a glandular hair. The stem leaves are at most a little longer than they are wide, the length-to-width ratio averages 0.9 (0.6 to 1.1). The leaf blade often has brood buds that serve for vegetative reproduction and to which their trivial names refer. There are stipules present.
Generative characteristics
The flowers are in a racemose inflorescence . They stand on a flower stalk above a wrapper . The hermaphrodite flowers are zygomorphic with a double flower envelope. The flower cup (hypanthium) is deeply cut on its underside. The three upper sepals are blunt, the two lower ones pointed and smaller than the upper ones. There are four petals . The mostly three, rarely only two stamens have thin stamens and are inserted on the tip of the flower cup. Two carpels have grown together to form an upper, single-chamber ovary only in the lower area. Most of the two styluses are brown, thread-like and bent back.
The flowering period extends from May to June.
The capsule fruit is beaked. The almost black seeds are almost spherical and clearly prickly.
The number of chromosomes is 2n = 28.
Occurrence
Hen with chicks is found in northwestern North America in British Columbia , Alaska , Oregon, and Washington . It thrives on river banks and in damp forests at altitudes between 0 and 1800 meters.
use
Hen with chicks is used as an ornamental plant for groups of trees, hanging baskets, balconies and rooms. It has been in culture since 1812 at the latest. The variety 'Taff's Gold' has light green leaves covered with white and yellow spots or spots.
supporting documents
- Douglas E. Soltis, Walter S. Judd, Pamela S. Soltis, Patrick E. Elvander: Tolmiea in der Flora of North America , Volume 8, 2009, p. 108: Tolmiea menziesii - Online. (Section description, systematics and distribution, there two types)
- Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler excursion flora from Germany. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 .
- Gordon Cheers (Ed.): Botanica: The ABC of Plants. 10,000 species in text and images . Könemann Verlagsgesellschaft, 2003, ISBN 3-8331-1600-5 (therein pages 891-892).
