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

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| FLOWERS in March & April. Click thumbnails for larger pictures. | |||
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| Very young 1" plant. | Halictid Bee | New areoles and flower buds. |
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| Erect central spines are longer and darker. | Dead "tent" of spines. | |
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| 1" plants, 3/04. A grass fire in 2/01 destroyed the older plants. |
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| Crested plant. |
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| 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. |
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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. |
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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. |
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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. |