[Arid_gardener] Re: Ocotillo Seedlinge

Olin Miller olindmiller at att.net
Sun Jan 6 21:40:27 MST 2008


The reason your ocotillo does not look like a cactus may be because it isn't
 a cactus.  Ocotillos are not cacti.  Only cacti have areoles. These are the
 small  spots that bear the spines and from which flower and stem buds grow.
 Depending on the cactus type, they may grow on the surfaces and edges of
 prickly pear pads, along the ribs of barrels and saguaros, and hedgehogs on
 the tips of pincushions.  The cactus flowers are also unique and differ
 greatly from those of ocotillos but it may be some time before you see
 flowers on your plant.

 There are two types of leaves on ocotillos.  Primary leaves grow from the
 shoots which form spines after these leaves are shed.  The ocotillo is a
 "drought evading" plant that grows secondary leaves on the stems after
rains
 but are shed to reduce transpiration during drought periods.

 It sounds as though your ocotillo seedling is typical.  And I admire your
 optimism.  It may take up to 100 years or more for one to grow to maturity.

 Olin Miller, Master Gardener Volunteer
U of A Cooperative Extension, Maricopa County AZ
> ============================================
>
> ----- Original Message ----- From: <arndt6225 at wildblue.net>
> Sent: Monday, December 31, 2007 8:48 AM
>> Jim Arndt, , 85630
>> This year I grew Ocotillo from seed, and was surprised that the young
>> plant does not reslemble the parent but a non-cactus plant with long
>> flexible leaves and stems which develope a thorn in the stem over time.
>> It seems to me that this plant evolved from a non-cactus plant. Do you
>> think that it's long lost relatives could be found in the non-cactus
>> world???




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