WGI International Checklist of
Nymphaea (Waterlily) Cultivars
Click images to enlarge
1) Cultivar Name (Epithet):
2) Hardy or tropical: Hardy 3) Day or night bloomer: Day
6) Address: Removed to protect privacy
7) Nominant (Named by):
8) Address (if different from above):
10) Address (if different from above):
12) Address (if different from above):
13) Phone: 14) Fax: 15) Email: Removed to protect privacy
16) As far as you know, has this name been published in a dated publication together with a description? Yes
17) If yes to 16, give details of the earliest publication (title, date, publisher, etc.): Serrosen by Dieter Beehthold / Haro Hieronimus 2006 Dahne Verlag GmbH, Postfach 10 02 50, D-76256 Ettingen. ISBN 10:3-935175-33-7 and ISBN 13:978-3-935175-33-3
Also appears on the WGI web site galleries.
19) If yes to any of the above, please give details:
20) Has a Standard been deposited in a recognized herbarium? No
21) If yes, please give details (where, when deposited, etc.):
ABOUT THE PLANT
Pollen (paternal) parent: Known
Please give following dimensions in centimetres
Description ‑ Flower: Shape: Star shaped
Diameter: Average 18 cm.
Sepal color, exterior: Green (RHS 144B and 144A) and
yellow/green on the base and along the sides of the petals (RHS 145D)
Sepal number: 4 Sepals. Sepals are pointed below the horizontal giving
the flower a globe like shape.
Petal color: Yellow (RHS 1A) moving to 5B on the inner petals.
Petal number: 40 to 44, sometimes up to 50
Stamen: Filament color: yellow (RHS 12A)
Anther color: : yellow (RHS 12A)
Tip color: : yellow (RHS 12A)
Number of Stamens: Around 57
Number of Carpellary Styles: Around 11, yellow (RHS 13A)
Pedicel pubescent (fuzzy)? Not hairy.
Fragrant? Fragrant like N. mexicana
Height above water: 0 - 7 cm.
Leaves: Shape: Orbicular
Length x width: Early leaves 8 cm. Later leaves around 12 cm.
Lobes: Slightly mucronate
Color, top: On early leaves green (RHS 147A) with black blotches (RHS 200A) and on mature leaves green (RHS 146B) with no blotches.
Color, underside: Green (RHS 147C) on early leaves and on mature eaves with blotches (RHS 200A) .
Petiole (leaf stem) color: brown, oval, sometimes completely round. Four air channels. Two are larger in diameter than the other two.
Spread of plant (diameter): Medium size
What cultivar does this plant most closely resemble and how does it differ?
Unusual characteristics or comments:
Nymphaea ‘Thalia’ is a star shaped waterlily with a large number of petals for a yellow cultivar.