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Anulocaulis annulatus
Sticky Ringstem
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Photographer: Aaron Schusteff
ID: 0000 0000 1107 1505 (2007-11-25)Copyright © 2007 Aaron Schusteff
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Feb 18, 2007
location
Jubilee Pass Region, Death Valley National Park (Inyo/San Bernardino County, California, US)family
Nyctaginaceae
plant community Rocky desert wash.notes A delightful desert member of the Four-O'Clock family. The genus name Anulocaulis corresponds to the common name 'ringstem' in Latin ('Anulo' = ring or annulus, and 'caulis' = stem). These names refer to the dark-brown, chevron-shaped rings in the middle of the internodes, formed by a sticky exudate from the stem. (In this image these rings are most easily discerned on the lowest two internodes of the main stem.) I've seen small insects trapped in this exudate. The leaves are also protected from herbivory by a dense covering of coarse trichomes with bulbous resin-filled glands at their bases.camera Shot using a Canon Digital Rebel XT at f8, ISO 100 using a Canon 100mm macro lens.
photo category: Plant - annual/perennial
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MORE INFORMATION ABOUT THIS PLANT
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| common names
Sticky Ringstem (photographer)
Look for Jepson Manual treatments, maps (University & Jepson Herbaria)View Calflora record for Anulocaulis annulatusView all photos in CalPhotos of Anulocaulis annulatus Check Google Images for Anulocaulis annulatus |
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The photographer's identification Anulocaulis annulatus 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 © 2007 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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