Narrow-leaved sticky seed
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A variety of the narrow-leaved sticky seed ( Pittosporum tenuifolium ). |
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The narrow-leaved sticky seed ( Pittosporum tenuifolium ) is a plant species from New Zealand from the genus of sticky seeds ( Pittosporum ) in the sticky seed family (Pittosporaceae).
description
The narrow-leaved sticky seed is an evergreen shrub or tree and reaches heights of up to about 10 meters. The bark of the trunk is smooth and dull gray. An egg-shaped, richly branched crown is formed. The bark of the branches is dark purple-brown. The undivided, alternate leaves are shiny, thin, about 5 cm long, 2.5 cm wide and elongated-elliptical in shape. The leaf margin is slightly wavy and wrinkled. The upper side of the leaf is light green with a raised whitish midrib.
The small, dark red to purple flowers are inconspicuous because of their very dark color, they have a strong smell and are 6 to 7 mm in diameter. A gray-black capsule fruit about 1.5 cm in size is formed.
The number of chromosomes is 2n = 24.
distribution
The home of the narrow-leaved glutinous seeds is on the North and South Islands of New Zealand . It grows there in the coastal regions and the lower mountain areas up to altitudes of about 900 m.
In Australia the plant has since been naturalized. It is not hardy in Central Europe . In much of the British Isles it thrives outdoors; it is often planted there as a hedge.
Cultivated forms
The narrow-leaved sticky seed is cultivated as an ornamental plant. Many varieties have been bred for this. Many varieties have variegated leaves. Here is a selection:
Forms with variegated leaves with a yellow center
- 'Abbotsbury Gold': Wavy leaf margins, dark green in winter
- 'Eila Keightley' (Syn .: 'Sunburst'): Very broad leaves with slightly wavy leaf margins
- 'Essex': Wavy leaf margins similar to 'Abbotsbury Gold', but lighter leaf color
- 'Golden Princess': Strongly wavy leaf margins, light yellow central spot on the leaf that turns green over time
- 'Gold Star': Slightly wavy leaf margins, red twigs
- 'Limelight': leaf margins flat; large hermaphrodite flowers; brown-green branches
- 'Loxhill Gold': Wavy leaf margins; similar to 'Tresederi', but with darker leaves; Twigs brown
- 'Margaret Turnbull': Wavy Leaf Margins; it is probably a hybrid of Pittosporum colensoi .
- 'Stirling Gold': Small leaves with a wavy edge; Branches purple
- 'Tandara Gold': Very small leaves with a slightly wavy edge; brown branches
- 'Tresederi': wavy leaf margins, brown twigs; similar to 'Abbotsbury Gold', but with narrower leaves.
Forms with variegated leaf margins
- 'Bicton Silver': Light green leaves with a flat margin, the leaf margin silvery-white
- 'Deborah': Small leaves with an almost wavy edge; Leaf margin creamy yellow
- 'Elizabeth': Gray-green leaves with a flat margin, the edge of the leaves spotted with white, pink in winter
- 'Garnettii': Broad gray-green leaves with a flat, white leaf margin
- 'Katie': Small leaves with a slightly wavy margin, white margin
- 'Marjory Channon': leaves with a non-curled edge; similar to 'Silver Queen', but with smaller leaves
- 'Mystery': leaves with an unwaved, white margin; this form is often offered under the name 'Variegatum'; green branches
- 'Saundersii': Gray-green leaves with a non-wavy white margin
- 'Silver Magic': Small leaves, almost unwaved at the edge; Leaf margin creamy yellow with pink spots
- 'Silver Queen': Gray-green leaves with a non-wavy, white margin
- 'Wendle Channon': Small to medium-sized leaves, slightly wavy at the edge; Leaf margin creamy yellow
Shapes with white spots in the variegation
- 'Irene Paterson': leaves speckled with white with a wavy edge; red-brown branches
Shapes with green, not variegated leaves
- 'Arundel Green': Elliptical leaves with a wavy edge; Branches red
- 'County Park Green': wavy leaf margins; dwarf form
- 'Craxten': leaves dark green with a wavy edge; purple branches
- 'Crinkles': Dark green leaves with a wavy edge; small plant
- 'Dixie': Small gray-green leaves with a slightly wavy edge
- 'French Lace': Gray-green leaves with a wavy edge
- 'Green Elf': Wavy leaf margin, dwarfed
- 'Humpty Dumpty': Small leaves with a slightly wavy edge, dwarfed
- 'James Stirling': Small gray-green leaves with a slightly wavy margin
- 'Mount Cook': Dark green leaves, more or less wavy leaf margins
- 'Silver Princess': Gray-green leaves with a wavy edge
- 'Silver Sheen': more or less wavy leaf margins; Branches dark purple
- 'Tiki': Small leaves with an unwaved edge; young twigs green
Red-leaved, unplaced forms
- 'County Park Dwarf': leaf margin wavy, dwarfed
- 'Dark Delight': wavy leaf margin, tall plant with smaller leaves than the 'Purpureum' form
- 'Nutty's Leprechaun': wavy leaf edge; prostrate growth
- 'Purple Princess': wavy edge of the leaf; tall, always feminine form
- 'Purpureum': wavy leaf edge; tall, always male form
- 'Tom Thumb': wavy margin; dwarfish
Yellow-leaved monochrome forms
- 'Peter Pan': Yellow-green leaves with a wavy edge; dwarfish
- 'Warnham Gold': golden yellow leaves with a wavy edge; Leaf color intense even in winter
Systematics
The first description by the German botanist Joseph Gärtner was published in 1788.
ingredients
The plant contains saponins .
literature
- Diana M. Miller: Pittosporum tenuifolium hybrids & cultivars . In: RHS Plant Trials and Awards . No. July 6 , 2006 ( PDF - Supplement).
- Alan Mitchell, translated and edited by Gerd Krüssmann: The forest and park trees of Europe: An identification book for dendrologists and nature lovers . Paul Parey, Hamburg and Berlin 1975, ISBN 3-490-05918-2 .
Web links
- Description at Plants for a Future. (engl.)
- Entry at mygardenguide.com (English)
- Entry at trees.stanford.edu (Engl.)
- Entry in GRIN Taxonomy for Plants. (engl.)
Individual evidence
- ↑ Pittosporum tenuifolium at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ See the article by Diana M. Miller.
- ↑ Fruct. sem. pl. 1: 286, t. 59, fig. 7. 1788. See entry in GRIN Taxonomy for Plants.