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WATER LOBELIA Lobelia dortmanna (Campanulaceae) Aquatic. Hairless perennial with slender, hollow and leafless stems. Grows in acid waters of upland and western lakes with gravelly bottoms. FLOWERS are 15-20mm long, the corolla lilac and 2-lipped, the upper with 2 narrow lobes, the lower one with 3 narrow lobes; borne in spikes on slender stalks (Jul-Sep). FRUITS are capsules. LEAVES are narrow and fleshy; in rosettes on lake beds.
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© BOB CHAPMAN/Nature Photographers
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www.naturephotographers.co.uk
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FLOWERS
WATER LOBELIA Lobelia dortmanna (Campanulaceae) Aquatic. Hairless perennial with slender, hollow and leafless stems. Grows in acid waters of upland and western lakes with gravelly bottoms. FLOWERS are 15-20mm long, the corolla lilac and 2-lipped, the upper with 2 narrow lobes, the lower one with 3 narrow lobes; borne in spikes on slender stalks (Jul-Sep). FRUITS are capsules. LEAVES are narrow and fleshy; in rosettes on lake beds.