Scrophularia nodosa

plant

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In figwort
…North America is the British Scrophularia nodosa, with pea-sized flowers. S. chrysantha, of the Caucasus, with green-yellow flowers, is sometimes grown in flower borders. Maryland figwort (S. marilandica), up to 3 metres (10 feet) tall, has greenish purple flowers; it is also called carpenter’s square because of its four-sided grooved…
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