Origin and Habitat: It is found on the Mexican highland in the Sierra Madre Occidental and Sierra Madre Oriental (mainly in the states of Chihuahua, Coahuila and Durango, it is also found - but rarer - in the states of Nuevo León, Zacatecas and San Luis Potosí).
Habitat: Grassland and open shrub-land (Desert Rosetophylous Matoral, Spiny Crassifolious Mattoral and Pastizal) in the desert of chihuahua at 1000 to 2000 metres of altitude over sea level. It is typically found on rocky or gravelly slopes on limestone rich soils

• Dasylirion cedrosanum Trel. ex F.E.Lloyd

• Dasylirion cedrosanum Trel. ex F.E.Lloyd
• Dasylirion palmeri Trel.

Description: Dasylirion cedrosanumSN|22721]]SN|11201]] is a beautiful robust, perennial, evergreen plant from Northern Mexico, similar to Dasylirion wheeleriSN|11201]]SN|22721]] although the leaves may be slightly wider. The rosettes are for many years stem less, but old specimens may form a short, stocky trunk topped by a spectacular, broom of countless leaves and showing a graceful symmetry. Sometime a plant has more than one trunk. Withstanding intense drought, they can live more than 150 years.
Stem: It forms a short, partially subterranean, stocky, fibrous trunk covered by persistent leaves, 25 to 1,50 cm tall with age. In many case a long broom of dead leaves helps prop up the short trunks that tend to recline with age. The stem branches at the base of the inflorescence and continues growing.
Roots: Thick and fleshy spreading out from the thickened stem base. The roots may be expendable in time of severe drought, the plant sending uot new ones when condition improve.
Leaves: Numerous, radiating symmetrically from the trunk,25 to 75 cm long-linear, borne upright, dropping or arching, relatively broad (1,-2,5 cm wide), flexible, stiff, and spoon-shaped where they attach to the trunk. They are glaucous-blue to glaucous-white, and twisted typically. Small yellowish to brownish sharp, marginal teeth pointing away from the leaf edges. Older leaves droop around the base, forming a shaggy mantle that collects water and provides support. But in cultivation the bottom leaves can be trimmed exposing an ornamental symmetrical spiral leaf-base pattern that never fails to attract comments.
Flowers: The inflorescensce is woody, narrow and dense near the top of the plant, with small finger-like branches called fascicles. Thousand of small insignificant, cream-coloured flowers are borne on a single inflorescence with female and male flowers on separated plants.
Blooming season: They may go years without blooming, then send up the tall flower stalk in May to July.
Fruits: If successfully fertilized, will produce a yellow to cream, three winged dry, indehiscent, fruit on female plant where the flowers were earlier... this all happens in the fall.
Seeds: Each fruit bears only one (occasionally two) seeds. The wings maybe assists in wind dispersal of the seed.

Cultivation and Propagation: They are slow growing, not widely grown, carefree and durable drought tolerant plant. They are said to be quite hardy to both drought and severe freezes down to – 12° C and although they prefer hot, dry climates, with excellent drainage and a place in full sun they do admirably well even in cool, rainy conditions, so worth trying if you have a sunny sheltered corner. As soon as the soil drains well, they should be OK. Once planted in the ground they never need additional water, though the odd deep watering during summer would encourage more rapid growth (don't water the crown, though they rot easily). These make great specimen plants for xeriscape gardens and blend well in either tropical or arid gardens. Small plants are relatively inexpensive, but larger ones are a fortune. These make excellent potted specimens, and their symmetrical form provides a striking focal point. They thrive best in full sun, but can be grown with some shade and humidity. Plant in very fast draining soil and provide little or no water in winter. Treat like a succulent. Plants in containers can be moved inside during longer cold spells.
Cultural practises: Remove old boom stalk. No need other maintenance.

Propagation: Easy to propagate from seeds or cuttings (If available).