Echinomastus erectocentrus var. erectocentrus
Needle-Spined Pineapple Cactus
This page updated 3/28/04.

Found in light-colored gravel (felsic volcanics, granite, or limestone)
on gentle south or east slopes in upland desert or semi-desert grassland.
Central spines are reddish or purple and ascend vertically from narrow tubercles.
Two varieties have been described, but they may not be valid since they are nearly identical
and their ranges overlap in Sonora, Mexico.  Arizona populations are disjunct.
E. e. var. erectocentrus (Needle-spined Pineapple Cactus):  south and east of Tucson.
E. e. var. acunensis (Acuna Cactus):  Organ Pipe Cactus National Park and south.

Federal Threatened and Endangered Species status:
E. e. var. acunensis:  candidate for listing as endangered.
E. e. var. erectocentrus:  USFS Sensitive Species.
THREATS:  Development is the primary threat, especially on State land southeast of Tucson,
where several healthy high-density populations have been bulldozed since 2003.
Other threats include off-road vehicle use, grazing, and possibly collection.
Arizona Rare Cactus Photos
 


FLOWERS in March & April.  Click thumbnails for larger pictures.

 
Very young 1" plant. Halictid Bee New areoles and flower buds.

 
Erect central spines are longer and darker. Dead "tent" of spines.

 
1" plants, 3/04. A grass fire in 2/01 destroyed the older plants. 

 
Crested plant.

 
Giant multi-headed plant.

 
These 3 similar cacti may occur together near the Santa Rita Mts, Pima County, AZ.
Drawings show the arrangement of spines on a single areole.
Echinomastus erectocentrus
Needle-Spined Pineapple Cactus
Rounded cone-shaped,
prickly top, spines pink or purple.
Central spine is vertical.
Flowers white or very pale
pinkish purple.
Echinocereus pectinatus
Rainbow Cactus
Cylindrical, rounded top,
spines in pink and white bands
around stem.  No central spine.
Flowers bright pink with
 white and yellow center.
Coryphantha vivipara
Beehive Cactus
Round and often multi-headed.
White spines are sparse to dense.
Central spine horizontal, thicker
than the others, brown-tipped.
Flowers pink or lilac.