Sea Holly

This is a large genus with over 250 species of flowering plants. Many originate from South America but others may be found throughout much of the world. Most of the plants have hairless, spiny leaves and flowers with spiny basal bracts.

 

PGC-P-Eryngium-agavifolium-Tower-6-25-2011-001

Eryngium alpinum Alpine Sea Holly
E. amethystinum Amethyst Sea Holly
E. bourgatii Mediterranean Sea Holly
E. bromeliifolium Sea Holly
E. chrysanthum  
E. giganteum Giant Sea Holly
E. petraeum ssp. crispum
(E. chelanthifolium)
 
E. petraeum ssp. glandulosum 
(E. macradenum)
 
E. planum  
E. varifolium  

Species Hgt (ft) Basal Leaf Shape
E. alpinum 1-2 heart-shaped
E. amethystinum 1-1 pinnately divided
E. bourgatii 1-2 palmate, 3-5 parted
E. giganteum 4-6 heart-shaped
E. planum 2-3 heart-shaped
E. varifolium 1-2 rounded

* Guides and Keys are from the book "Herbaceous Perennial Plants A Treatise on their Identification, Culture and Garden Attributes" by Dr Allan M. Armitage of the University of Georgia. Varsity Press, Athens, Georgia. 1989 ISBN 0-942375-00. More on Dr Armitage and his other books.

 

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