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Sandweed is an annual with slender stems, up to 15 cm tall, that are simple or sparingly branched from near the base. The alternate, lance-shaped leaves, 6-20 mm long, have toothed margins and are stalked below but sessile above. Foliage is covered with simple and branched hairs. Miniscule white flowers are born on short, spreading stalks in open, unbranched inflorescences at the ends of the ste...

Slender Thelypody is an herbaceous biennial or short-lived perennial with solitary, simple or branched stems that are 3-8 dm high and arising from a taproot. The lower leaves are 6-20 cm long and have petioles and broadly lance-shaped, entire-margined blades. The upper leaves are smaller, narrowly arrow-shaped, and they lack petioles. Foliage is glabrous or nearly so and has a thin, waxy coating...