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Harrisia simpsonii
Common Name(s): Queen of the Night, Simpson's Prickly Apple Synonym(s): Cereus gracilis, Harrisia undata, Harrisia donae-antoniae, Harrisia gracilis, Harrisia fragrans
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Original Description:The Cactaceae 2
p.152 - Britton & Rose (1920)
Plants up to 6 meters high, erect, reclining, or spreading, simple or more or less branched; ribs 8 to 10; areoles 1 to 2 cm apart; spines 7 to 14, gray when mature, 1 to 2.5 cm long; buds white-hairy; flowers 12 to 17 cm long; scales of the ovary lanceolate-subulate, subtending few white hairs 10 mm long or less; scales of the flower-tube lanceolate, distant; outer perianth-segments linear; inner perianth-segments spatulate, acute or acuminate, erose-denticulate; fruit depressed-globose, orange-red, 4 to 6 cm in diameter.
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