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little nipple cactus

Mammillaria meiacantha

Wildlife study photograph from iNaturalist.
(c) sshowalter, some rights reserved (CC BY-NC)

25 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

Photos you add are credited to you, and you keep the copyright.

Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in Texas.January 74, February 70, March 80, April 152, May 93, June 46, July 41, August 42, September 52, October 65, November 69, December 67.
United States1,103
Texas836
New Mexico434
Mexico314
Coahuila de Zaragoza160
Nuevo Leon54
San Luis Potosi45
Zacatecas27
Durango16
Chihuahua11

Counts show where people looked, not only where it lives.

Traits

Group and habits

  • Shrub growth formListed by a harvested source as having a shrub or bush growth form.USDA PLANTS Characteristics
  • Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics
  • Cactus growth formDescends from the cactus family.Inferred from its group

Classification

KingdomPlants · Plantae
PhylumVascular Plants · Tracheophyta
ClassDicots · Magnoliopsida
Orderpinks, cactuses, and allies · Caryophyllales
Familycacti · Cactaceae
Genuspincushion cactuses · Mammillaria

Sources

Remember the name next time.

Practise little nipple cactus with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.