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Euphorbia ocellata ssp. arenicola
Dune Spurge
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Photographer: Aaron Schusteff
ID: 0000 0000 0104 0550 (2004-01-14)Copyright © 2004 Aaron Schusteff
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo May 17, 2003
location
Eureka Dunes (Inyo County, California, US)family
Euphorbiaceae
synonyms Chamaesyce ocellata ssp. arenicola
plant community Sand Dunesnotes This plant features a remarkable and unusual floral structure associated with the genus Chamaesyce and many other members of the family Euphorbiaceae. What appear to be 'flowers' in this photo are actually cyathia, an inflorescence type consisting of a cup (or involucre), rimmed here with four petal-like 'glands', and supporting separate male and female flowers. I've labeled the floral parts in the photo here with various letters. I hope this will clarify characters and descriptions encountered when keying Chamaesyce and other Euphorbiaceae. A. Involucre of the cyathium. B. Glands ('petal-like', but not really petals!). They secrete nectar which attracts pollinators (often flies). C. A male flower (each of which consists of a single stamen here!). D. Stalk of the female flower. E. Enlarged three-lobed ovary of maturing female flower, which is pendant in the gap between two of the four glands. F. Young styles atop female flower just beginning to emerge from an opening cyathium bud. The styles of the other cyathia are hidden in this shot, since their ovaries are hanging upside down. G. Stipules (useful in keying/identification). camera Cropped detail of shot made with a Canon D60 with a 50mm Canon Compact Macro lens.
photo category: Plant - annual/perennial
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ADDITIONAL TAXONOMIC NOTES FOR THIS PHOTO
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| name change notes May 21, 2014: Name changed from to ICPN-accepted name . (University & Jepson Herbaria) |
MORE INFORMATION ABOUT THIS PLANT
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| common names
Contura Creek Sandmat (ITIS )
Dune Spurge (photographer)
Look for Jepson Manual treatments, maps (University & Jepson Herbaria)View Calflora record for Euphorbia ocellata ssp. arenicolaView all photos in CalPhotos of Euphorbia ocellata ssp. arenicola Check Google Images for Euphorbia ocellata ssp. arenicola |
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The photographer's identification Euphorbia ocellata ssp. arenicola has not been reviewed. Click here to review or comment on the identification. |
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Using this photo The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2004 Aaron Schusteff.
For other uses, or if you have questions, contact Aaron Schusteff arbonius2[AT]sbcglobal.net. (Replace the [AT] with the @ symbol before sending an email.) |
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