Bastard indigo
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Bastard indigo ( Amorpha fruticosa ) |
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Bastard Indigo , slip Indigo , lead bush or False Indigo ( amorpha fruticosa ) is a plant of the family Leguminosae (Fabaceae).
description
The bastard indigo is an upright shrub that reaches a height of 1 to 3 m. Its young shoots are softly hairy, but later bald.
The alternate leaves are 9 to 25-fold, imparipinnate and reach a length of up to 30 cm. Your stem becomes 2 to 4 cm long. The leaflets are elongated-oval to elliptical, have a short spiked tip and reach a length of 1.5 to 4 cm. Their edge is smooth. They are initially light gray haired on the underside, but soon become bald. The stipules are narrow-linear, but fall off shortly after the leaves have unfolded.
Flowers from June to August, rarely until September. The small flowers are in 7 to 15 cm long, upright, terminal clusters or double clusters. Only the broad flag of the typical petals is present, while the lateral wings and the shuttle are missing. It is purple-blue to blue-violet. Dust bags are yellow.
The fruits are not the typical legumes , but rather solitary, laterally flattened, wrinkled nuts. Your wall is rough.
The number of chromosomes is 2n = 40.
ecology
The pollinators are various insects , most notably honey bees .
The plant was included in the black list of invasive neophytes in Switzerland because of its potential for spreading and the damage it causes in the areas of biodiversity , health and economy .
Location
Grows in light deciduous forests, on edges, in prairies and in dry bushes. Tolerates dry soils.
distribution
Native to the continental regions of North America, from Canada to Florida and Mexico .
Synonyms
- Amorpha elata Hayne
- Amorpha fragrans Sweet
- Amorpha fruticosa var angustifolia Pursh
- Amorpha fruticosa f. crispa ( G.Kirchn. ) CKSchneid.
- Amorpha fruticosa var crispa G. Kirchn.
- Amorpha fruticosa var tennesseensis ( Shuttlew. Ex Kunze ) EJPalmer
- Amorpha tennessensis Shuttlew. ex Kunze
- Amorpha virgata Small
use
European settlers in North America used the leaves and young shoots of the bastard indigo instead of the indigo shrub ( Indigofera tinctoria ) for dyeing blue. The species is frost hardy in Central Europe and is occasionally planted as an ornamental wood, bee pasture and as protection against erosion on embankments.
gallery
Branches
leaves
inflorescence
blossoms
Individual evidence
- ↑ Article on Sham Indigo
- ^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 600.
- ^ Federal Office for the Environment FOEN: Invasive Alien Species . ( admin.ch [accessed on August 6, 2019]).
- ↑ S. Buholzer, M. Nobis, N. Schoenenberger, S. Rometsch: List of the alien invasive plants of Switzerland . Ed .: Infoflora. ( infoflora.ch [accessed on August 6, 2019]).
source
- Gunter Steinbach (Ed.): Steinbach's Great Plant Guide. Ulmer, Stuttgart (Hohenheim) 2011, ISBN 978-3-8001-7567-3 , p. 328.
- Peter A. Schmidt, Ulrich Hecker: Pocket dictionary of trees. A botanical-ecological excursion companion. Quelle & Meyer, Wiebelsheim 2009, ISBN 978-3-494-01448-7 .
Web links
- Entry at GRIN
- Bastard indigo. In: FloraWeb.de.
- Distribution map for Germany. In: Floraweb .
- Amorpha fruticosa L. In: Info Flora , the national data and information center for Swiss flora . Retrieved November 18, 2015.