Theorum
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Classification:
1 W-Y[ Trumpet Long-Cupped ]
Season:
Early to Mid-Season
Height:
Standard - 32.5 to 67.5 cm (12.8 to 26.6 in)
Year of first flowering:
1981
Hybridizer:

David Jackson

Jackson's Daffodils, Geeveston, Tasmania, Australia

David Jackson
, Tasmania, Australia
Registered:
Yes, 1989
Seed Parent: 
Helsal 1 W-Y 
William Jackson, Jr., Australia
Year Registered: 1969
(Merri x Ammon) x (Maweena x Rowella)
Helsal
Pollen Parent: 
116/74 Seedling
Seedling Number:
70/81
Pedigree Chart:
Pedigree TreeClick this icon to display the Pedigree Chart for Theorum
Used as parent:
1 time as pollen
Descendants:
Descendants TreeClick this icon to display the Descendants of Theorum
Comments

Fl. 103 mm wide; perianth segments very broadly ovate, blunt or somewhat truncate, fairly prominently mucronate, greenish white, reflexed, plane, smooth and of thick substance, overlapping half; the inner segments more nearly spreading at base, reflexed at apex, with margins wavy; corona funnel- shaped, light greenish yellow, with mouth lightly frilled and rim rolled.

Click on the thumbnails to see the full size photos  

TheorumTheorum, 1 W-Y, David Jackson, Australia, 1989
Photo #2927 Kirby Fong, USATheorumTheorum, 1 W-Y, David Jackson, Australia, 1989
Photo #2926 Kirby Fong, USA