PHOTOS OF YELLOW WORT
Photo of Blackstonia perfoliata
Blackstonia perfoliata (L.) Hudson. – (Yellow wort)
Annual herb of the Gentian family – Gentianaceae – up top 40 cm. Erect stems, glabrous, glaucous. Basal leaves in rosette. Leaves on the stem perfoliate. Yellow flowers, in loose inflorescences with 6 or 8 petals. Fruit in capsule. In sandy calcareous soils and dry grasslands.
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