Showing posts with label lotebush. Show all posts
Showing posts with label lotebush. Show all posts

Thursday, January 21, 2010

Naked Lotebush


"Naked Lotebush"
(Zizyphus obtusifolia)
West Odessa, Texas


This is the season when the lotebush is nothing but spines. No leaves. No blooms, no berries. On this specimen there isn't even any overwintering ovaries. Just a plant of pure spines. This is a young specimen, with spines about two inches long. I've seen older bushes where the spines were longer than my hand, at about 6 or 7 inches. Nothing to sneeze at. Or, worse, accidentally trip into!

Actually, tripping in the desert rarely turns out well.

An interesting photo essay on Sibley Nature Center site, which includes this about the remarkable ovary adaptation:

"Lotebush is a common shrub species found mixed in with mesquite bushes and tasajillo (christmas cholla cactus). When it blooms in May and June many species of insects come to nectar on the sticky waxy flowers (which are half the size of an adult human's pinkie fingernail.) After it blooms, the ovaries remain as discs until the following April and early May when blue berries appear, 11 months after insects pollinate the flowers. One other species of plant (a cactus known as Mammalaria vivipara or chilipitin cactus) on the Llano Estacado also displays this adaptation to the rainfall regime in the region (heaviest in May.)"