Origin and Habitat: USA (New Mexico, Eddy County, Guadalupe Mountains) This species is listed as threatened, but it is quite frequent in its very small area of distribution. It is popular with collectors and has been subject to commercial collecting in the past, but is now propagated commercially on a large scale and is readily available and very common.
Habitat: Primarily it occurs on the tops of limestone ridges in areas of broken terrain, terraces, rim rock or in poorly developed limestone soil, the majority of the plants grow in cracks in the rocks on north-facing slopes between 1,400-1,800 m in elevation, rarely under cover, usually sparsely distributed among the shrubby vegetation of the high Chihuahuan desert (Shrub and interior Chaparral ), a plant community dominated by large almost arborescent shrubs such as Dasylirion wheeleriSN|22721]]SN|22721]]i and Yucca torreyi in association with Muhlenbergia, Agave lechuguillaSN|23013]]SN|23013]], Opuntia phaeacanthaSN|35254]]SN|35254]], Dalea sp. and Berberis trifoliolata.

• Escobaria sneedii subs. leei (Rose ex Boed.) D.R.Hunt
• Coryphantha sneedii var. leei (Rose ex Boed.) L.D.Benson
• Escobaria leei Rose ex Boed.
• Escobaria sneedii var. leei (Rose ex Boed.) D.R.Hunt
• Mammillaria leei Rose ex Boed.

• Escobaria sneedii Britton & Rose
• Coryphantha pygmaea Frič
• Coryphantha sneedii (Britton & Rose) A.Berger
• Mammillaria sneedii (Britton & Rose) Cory

• Escobaria sneedii subs. leei (Rose ex Boed.) D.R.Hunt
• Coryphantha sneedii var. leei (Rose ex Boed.) L.D.Benson
• Escobaria leei Rose ex Boed.
• Escobaria sneedii var. leei (Rose ex Boed.) D.R.Hunt
• Mammillaria leei Rose ex Boed.

Description: Escobaria sneediiSN|10397]]SN|10397]] subsp. leei grows in dense clusters with as many as 100 or more stems in a clump.
Stem: Spherical at first, later mostly club shaped, sometimes cylindrical, branching and proliferating very rapidly, forming irregular clumps, each individual stem is 1,5-6(8)cm tall and 1-2,5 cm in diameter.
Tubercles: Tightly packed cylindrical 2 mm long, often smaller with upper surface grooved on mature stems.
Areoles: Circular or elliptical on tips of tubercles often elongating into grooves from spiny portions at ends of tubercles to about halfway to tubercle bases; flowers and branches come from ends of grooves; at first very woolly, wool remains in grooves; centre of spiny part often very convex, bulging outward, with spines mostly pushed back, radiating and forming convex areole centres, giving unique, knobby appearance. Many stems remain with unelongated areoles, sometimes through-out life of stem.
Radial spines: 30 to 90 very small, typically white often brown at tip, fading to grey, slender and bristle-like, mostly about 1-2,5 mm long, radiating from areole and appressed against plant.
Central spines: Sometimes with one to 7 short porrect stouter centrals, white or with pale brownish tips, usually about 3 mm long, a few may be longer; 1 central perpendicular to plant in centre of areole, may be very short; others radiating in front of radials.
Roots: Fibrous when young, or sometimes with a single definite, fleshy tap-root, which runs some centimetres before reducing.
Flowers: Brownish-pink in early April-May. Showy but small, usually not opening widely, 1,2 cm long up to 1,5 cm wide; outer tepals brown or greenish-brown with light edges fringed; inner tepals brownish-pink (rarely pale yellowish, or whitish) in colour, usually with deep pink midstrip, edges lighter and entire. Style white longer than stamens with 4-6 short white stigma lobes.
Fruits: Small elongate, 1-1.5 cm long, greenish tinged with brownish or faintly pinkish when ripe to somewhat reddish, sometime with a few hairy scales, floral remnant persistent.
Seeds: About 0,8-1 mm long and 1,5 mm broad, kidney-shaped or less pear-shaped, pitted, dark brown, with hilum lateral.
Remarks: The subspecies leei differs from other Escobaria in densely its clumping habit, small stem size, and tightly, almost pectinate, spination. The wild population intergrades with other forms of Escobaria sneediiSN|10397]]SN|10397]] in the Guadalupe Mountains. This is apparently a neotenic variety of the species in which juvenile spination is retained throughout the life of the plant. This species is closely related to Escobaria sneediiSN|10397]]SN|10397]] var. sneedii from which it differs by having deflexed spines, rather than spreading ones, brownish - pink flowers as opposed to rose-magenta ones, and seeds 1 mm long as opposed to 0,75 mm in length.

Bibliography: Major references and further lectures
1) Brian Loflin, Shirley Loflin “Texas Cacti: A Field Guide” Texas A&M University Press, 26/Oct/2009
2) Jackie M. Poole, William R. Carr, Dana M. Price, Jason R. Singhurst “Rare plants of Texas: a field guide” (W. L. Moody Jr. Natural History Series) Texas A&M University Press, 30/dic/2007
3) United States. Bureau of Land Management. Las Cruces District Office “Proposed resource management plan amendment/final environmental impact statement for McGregor Range” U.S. Dept. of the Interior, Bureau of Land Management, Las Cruces District, 1989
4) Robert Sivinski, Karen Lightfoot “Inventory of Rare and Endangered Plants of New Mexico” New Mexico Forestry and Resources Conservation Division, Energy, Minerals, and Natural Resources Department, 1995
5) Del Weniger “Cacti of Texas and neighboring states: a field guide” University of Texas Press, 1984
6) Edgar Lamb “The illustrated reference on cacti and other succulents” Blandford Press, 1978
7) Edward Anderson “The Cactus family” Timber Press, Incorporated, 2001
8) James Cullen, Sabina G. Knees, H. Suzanne Cubey "The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass" Cambridge University Press, 11/Aug/2011
9) David R Hunt; Nigel P Taylor; Graham Charles; International Cactaceae Systematics Group. "The New Cactus Lexicon" dh books, 2006
10) Clive Innes, Charles Glass “Cacti” Portland House, 01/May/1991
11) N. L. Britton, J. N. Rose “The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family.” Volume 4, The Carnegie Institution of Washington, Washington 1923

Cultivation and Propagation: Escobaria sneediiSN|10397]]SN|10397]] subsp. leei comes from an area of summer rainfall and is supposed to be not the most easiest species in cultivation, as particularly sensible to moisture excesses. It will offset profusely.
Soils: Use a an open and free draining mineral compost with little organic matter (peat, humus) that allows therefore roots to breath (as it is rot prone).
Repotting: Repotting every 2-3 years. Use a small pot with good drainage.
Watering: It likes a winter's rest and should be kept completely dry during the winter months. From early spring onwards the plant will begin to grow and watering should be increased gradually until late spring when the plant should be in full growth. Water regularly during the summer so long as the plant pot is allowed to drain and not sit in a tray of water. During hot weather you may need to water the plants more frequently so long as the plant is actively growing. From late summer watering should be reduced to force the plant to go in to a state of semi dormancy, by autumn you should be back in to the winter watering regime. Keep dry with ample airflow in winter (but for outdoors cultivation it is very resistant to wet conditions, too). In the rest period no high atmospheric humidity!! Care must be taken with watering as they tends to become swollen and untidy in growth habit if given too much water and shade.
Fertilization: Feed with a high potassium fertilizer in summer.
Hardiness: Reputedly resistant to frost if kept on the dry side prior to, and during, cold weather (hardy to -17 C ° C, or less for short periods).
Exposition: The plant tolerates very bright situations, if kept too dark they may become overly lush and greener and could be prone to rotting due to over watering. Strong light encourages flowering and heavy wool and spine production, but is likely to suffer from sun scorch or stunted growth if over exposed to direct sunlight during the hottest part of the day in summer. .
Uses: It is an excellent plant for container growing. It always looks good and stays small. It look fine in a cold greenhouse and frame or outdoor in a rockery.
Pests & diseases: It may be attractive to a variety of insects, but plants in good condition should be nearly pest-free, particularly if they are grown in a mineral potting-mix, with good exposure and ventilation. Nonetheless, there are several pests to watch for:
- Red spiders: Red spiders may be effectively rubbed up by watering the plants from above.
- Mealy bugs: Mealy bugs occasionally develop aerial into the new growth among the wool with disfiguring results, but the worst types develop underground on the roots and are invisible except by their effects.
- Scales: Scales are rarely a problem.
- Rot: This species seldom suffer of cryptogamic diseases. Rot it is only a minor problem with cacti if the plants are watered and “aired” correctly. If they are not, fungicides won't help all that much.
Propagation: Direct sow after last frost or usually by offsets (readily available), or occasionally grafted. Seeds (no dormancy requirement) germinate in 7-14 days at 21-27° C in spring, remove gradually the glass cover as soon the plants will be well rooted (ca 1-2 weeks) and keep ventilated, no full sun for young plants! The seedlings should not be disturbed until they are well rooted, after which they can be planted separately in small pots. Cuttings: wait until the offsets that appear at the base of old clustered specimens are 1/3 the size of the parent and then detach and plant.