Article from Bean's Trees and Shrubs Hardy in the British Isles
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'Lonicera implexa' from the website Trees and Shrubs Online (treesandshrubsonline.
An evergreen climber 8 ft or more high, with slender, purplish, usually glabrous young shoots. Leaves oval, ovate or oblong, stalkless, blunt or pointed, 3⁄4 to 2 in. long, 1⁄3 to 1 in. wide, very glaucous beneath, glabrous. The upper pairs of leaves are united at the base so as to form a kind of cup-shaped bract, in the axils of which the stalkless flowers are produced in a whorl. Corolla 11⁄2 to 2 in. long, yellow suffused with pink outside, white within, changing to yellow. Bot. Mag., t. 640.
Native of the Mediterranean region; introduced in 1772. It is a pretty honeysuckle, but rather tender and slow-growing, and best with the shelter of a west wall. It flowers from June to August. It probably grows much higher in its native haunts.