<< Previous Next >>

Cholla Shadows


Cholla Shadows
Información de la foto
Copyright: Manyee Desandies (manyee) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3115 W: 232 N: 6775] (23770)
Género: Plants
Medio: Color
Tomada el: 2006-06-25
Categorías: Cacti
Cámara: Canon Powershot S3 IS
Versión de la foto: Versión original
Fecha enviada: 2006-07-06 4:31
Vista: 3538
Puntos: 12
[Normas para las notas] Notas del fotógrafo
The New Mexican landscape is dotted with cholla cactus. During my visit there, many of them showed off their magenta blooms. When the flowers fade away and drop off, they leave this interesting looking "cups". A very spindly plant, it has long spiny stems that throw complex shadow patterns in the bright sunlight.

Cholla Cactus
Cholla cactus represent more than 20 species of the Opuntia genus (Family Cactacea) in the North American deserts. Cholla is a term applied to various shrubby cacti of this genus with cylindrical stems composed of segmented joints. These stems are actually modified branches that serve several functions -- water storage, photosynthesis and flower production.

Like most cactus, chollas have tubercles -- small, wart-like projections on the stems -- from which sharp spines -- actually modified leaves -- grow. But chollas are the only cactus with papery sheaths covering their spines. These sheaths are often bright and colorful, providing the cactus with its distinctive appearance.

Prickly pears are also members of the Opuntia genus, but their branches are manifested as pads rather than cylindrical joints. Opuntia are unique because of their clusters of fine, tiny, barbed spines called glochids. Found just above the cluster of regular spines, glochids are yellow or red in color and detach easily from the pads or stems. Glochids are often difficult to see and more difficult to remove, once lodged in the skin.

Range & Habitat
Cholla cactus are found in all of the hot deserts of the American Southwest, with different species having adapted to different locale and elevation ranges. Most require coarse, well-drained soil in dry, rocky flats or slopes. Some have adapted to mountain forests, while others require steep, rocky slopes in mountain foothills.

Description
Most cholla cactus have orange or greenish-yellow flowers with a variety of colors, even among the same species. Most species bloom April through June, depending on local conditions. Stems and joints vary in width, length, shape, and color, as well as in the profusion of spines and glochids. Chollas may appear as ground creepers, shrubs or trees, varying in height from less than a foot (Club or Devil Cholla) to as much as 15 feet (Chain-Fruit Cholla).

Source

marhowie, liquidsunshine, scottevers7, eruyanik ha puntuado esta nota como útil.
Only registered TrekNature members may rate photo notes.
Añadir Critique [Normas para las críticas] 
Sólo los miembros registrados de TrekEarth pueden escribir críticas.
Secuencias en los foros
Ninguno
Tienes que estar registrado para comenzar una discusión.

Critiques [Translate]

Nice picture with those two green ET eyes staring at you. I like the shadow pattern and your note too. Well observed.

Hello Manyee, Very unusal catus, excllent colors, Great POV and framing, TFS Kyle

Hi Manyee,
Good detail, colours and sharpness. exposure and lighting are good. Good POV and composition.

Thanks for posting, have a great weekend.

AHi Manyee,
An artistic study of light and shadow. Nice colors and shrp detail on the Cholla. Very interesting how it had adapted to diffrent conditions.
Scott

Hello Manyee!
What an interesting cactus! Full of spikes :-) i like its cups a lot and i like the compositition with that shadows also. Great shot!
Ersin

Hi manyee,
I like the play of the shadows in this photo and the close up of the cactus flowers. It all is so well exposed without out any loss of color or light. What a beautiful way you composed this photo.
TFS,
Niek

Calibration Check
















0123456789ABCDEF