Growing Profile · Cultivar accepted by the Hoya registrar; living-material continuity unverified

Hoya lacunosa ‘Royal Flush’

Explain the documented selection and distinguish appearance comparisons from demonstrated hybrid parentage.

Current evidence boundary

Explain the documented selection and distinguish appearance comparisons from demonstrated hybrid parentage.

Overview

Royal Flush is a cultivated selection discussed in a 2009 Stemma interview and accepted in the Hoya registrar’s account. Its defining description combines colored young foliage and stems with conspicuous silver markings. These accounts explain the name; they do not authenticate every plant carrying it.

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What We Know

  • Naming and origin: The registrar attributes the selection to Hermann Engelmann Greenhouses and describes development through vegetative selection. The 2009 interview records the name and a planned release later that year. That announcement does not independently establish the actual first distribution date.
  • Leaves and stems: The registrar describes red-to-purple or dark new growth with silver markings. This is a description of the selection, not a visual identification key or evidence that light alone can turn another selection into Royal Flush.
  • Propagation and label continuity: The registrar specifies vegetative propagation and warns that retail baskets may contain mixed selections. Seedlings and unidentified cuttings therefore need their own identity assessment.

What We Are Still Learning

When was the first distribution completed?

What would help: Original naming or acquisition records, identified material, dated observations and documented conditions appropriate to this question.

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Which modern accessions have a traceable chain to documented material?

What would help: Original naming or acquisition records, identified material, dated observations and documented conditions appropriate to this question.

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How do traits vary under measured conditions?

What would help: Original naming or acquisition records, identified material, dated observations and documented conditions appropriate to this question.

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Common Misconceptions

  • The interview’s resemblance-to-a-cross wording is not a breeding record.
  • Colored foliage and silver markings alone do not authenticate the selection.

Research and Sources

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Can you help document this plant? Original labels, acquisition history, dated observations with growing conditions, and photographs you have permission to share would help us assess its identity and behavior.

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See other Hoya lacunosa forms