Everlime Carex Cultivar Dwarf Habit Variegated Foliage
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Solution Overview
Problem
There is a need for a distinct cultivar of Carex oshimensis that exhibits a dwarf plant habit, variegated foliage, and robust growth suitable for shaded container and landscape use, as existing varieties like 'Evergold' and 'Everillo' do not offer the specific coloration and growth characteristics of 'Everlime'.
Innovation Solution
A new cultivar, 'Everlime', is introduced, which arose as a naturally occurring mutation of Carex oshimensis 'Evergold', characterized by a dwarf plant habit, deep green centers with lime green margins, and robust growth, propagated through rhizome division and basal cuttings, distinguishing it from other varieties like 'Everoro' and 'Everillo'.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a dwarf plant habit is selected for container use, then space efficiency is improved, but growth robustness may be compromised
Solution Approach 1:
The patent applies parameter changes by selecting and propagating a specific chimeral mutation that exhibits both dwarf stature (reduced height parameter) and robust growth characteristics (maintained vigor parameter). The cultivar 'Everlime' was identified as having these specific parameter combinations that differ from the parent 'Evergold' variety, allowing simultaneous optimization of compact size and growth strength for container cultivation.
2Shape
If variegated foliage is selected for ornamental value, then aesthetic appeal is improved, but disease susceptibility may increase
Solution Approach 1:
The patent applies local quality by maintaining a chimeral structure where different tissue layers exhibit different colors (deep green centers with lime green margins). This localized color differentiation within the foliage creates the desired variegated appearance while the overall plant structure maintains disease resistance comparable to standard Carex varieties. The distinct color zones are a result of the chimeral mutation that affects specific leaf tissue regions.
3Shape
If a distinct coloration pattern is developed, then ornamental distinction is improved, but propagation stability may be challenged
Solution Approach 1:
The patent applies self-service through asexual propagation methods (rhizome division and basal cuttings) that allow the plant to reproduce itself while maintaining the chimeral coloration pattern. The propagation process naturally preserves the distinctive deep green center with lime green margin pattern without requiring external intervention to maintain the coloration, ensuring both distinctiveness and stability across generations.
Data Source
AI summary
A new cultivar of Carex oshimensis, ‘Everlime’, characterized by its dwarf plant habit, its foliage that is variegated with deep green centers and lime green margins, and its robust growth habit.