International Cultivar Registration Authority (ICRA) for Brugmansia and Datura

Botany.com
Dictionary of Botanical words

Online Conversion Charts
Over 5,000 units, and 50,000 conversions.


Measure peduncle	Peduncle: A botanical term used to describe the stalk of a single flower
Measured from the peduncle attachment to mother stem, to attachment to calyx
Measure flower
Flower measurement should begin at the peduncle attachment to the calyx, and end at the edge of the corolla	Measured to the bottom edge of corolla. This flower is 15 inches long


Measure corolla tooth (points)	Measure calyx Calyx: The outer part of a flower, usually small and green but sometimes showy and brightly colored; it is formed from the sepals and encloses the petals in a bud.
tip of corolla tooth to corolla edge	Calyx measurement should begin at the peduncle attachment to the calyx, and end at the tip of calyx tooth


Calyx splits
1 split in calyx	2 or more splits in calyx


Anthers fused or free?	Anther: The part of a stamen that produces pollen, usually located at the end of a thin stalk in the center of a flower.
Anthers fused	Anthers free


Corolla edge	Corolla: The usually conspicuous part of a flower, called the petals. They are contained within the calyx and immediately surround the stamens and pistil.
corolla edge no recurve does not curve back on itself	corolla edge recurved
corolla edge always smooth and straight	corolla edge ruffled

Flower position
pendant	horizontal
upright	nodding

Flower forms
shredded	petals
More than one skirt flore plena (f.p.)	single

Flower shapes
funnel	corolla shape trumpet
corolla shape intermediate trumpet-funnel	corolla shape tube


Space or no space?
Space between calyx and corolla Corolla neck does not fill the calyx	No space between calyx and corolla Calyx is stuffed full


Foliage Leaves can be any combination of margins and textures. These are just a few examples.


Introduction to the Registry	About ABADS - ICRA	FAQ		About ISHS & ICRA

International Society for Horticultural Science (ISHS)

American Brugmansia & Datura Society (ABADS)

Site Map

Disclaimer: While the information at this Web site is believed to be true and accurate, the American Brugmansia & Datura Society Inc. (ABADS) and the authors cannot accept any legal responsibility for any errors or omissions that may have been made. ABADS makes no warranty, expressed or implied with respect to the material contained herein. Copyright of all original Images submitted for public display will be retained by the contributor. The contributor does, however, agree to grant ABADS a non-exclusive license to modify, reproduce, and distribute all images in the manner that it sees fit. You must request written permission from ABADS Board of Directors in order to copy and publish any part of this website.