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Accepted Scientific Name: Agave deserti subs. simplex Gentry
Occas. Pap. Calif. Acad. Sci. 130: 22 (fig.). 1978
Plant gray-glaucous, few branched usually with one or only a few rosettes.
Origin and Habitat: This species covers a broad geographic area in Southern California and northern Baja California, Mexico (Lower Colorado River Valley subdivision of the Sonoran Desert) and barely into Arizona Upland and the Mohave Desert.
Altitude: 90 and 1620 m in elevation.
Habitat: This is one of the most desert-adapted agaves, that strives even in the hottest, most arid portion of the desert, on sandy flats and rocky or gravelly slopes and washes.
Agave deserti Engelm.
Trans. Acad. Sci. St. Louis 3: 310 1875
Agave deserti subs. pringlei (Baker) Gentry
Occas. Pap. Calif. Acad. Sci. 130: 20. 1978
- Agave deserti subs. pringlei (Baker) Gentry
- Agave scaberrima Baker
Agave deserti subs. simplex Gentry
Occas. Pap. Calif. Acad. Sci. 130: 22 (fig.). 1978
Description: Agave deserti is a small to nedium-sized gray-green species. Most varieties sucker near the base to form dense colonies, but some offset by long underground rhizomes, and and few other forms rarely offset at all. Agave deserti subsp. simplex looks a lot like the typical species, but it usually doesn't form colonies (rarely as many as three rosettes per plant).
Stem: Acaulescent or short-stemmed with trunks 20-40 cm tall.
Rosettes: Usually 30-70 cm tall, 40-80 cm in spread compact to rather open.
Roots: It has a shallow root system.
Leaves: Variable, thick, rigid, usually 20-40(-70) long and 6-8(-10) cm wide, lanceolate to nearly straight, scarcely narrowed above the broad clasping base, acuminate, concave above, convex below and light grey to bluish-grey, yellowish green, or greenish, occasionally cross-zoned. Margins straight or undulate to crenate, armed with widely spaced marginal slender-cusped teeth, from small, the larger 2-3 mm long, to large, the larger 6-8 mm long, grey, loosely attached, mostly 15-30 mm apart. Apical spine strong, subulate to acicular, generally 2-4 cm long, light brown to greyish, openly grooved above. decurrent to the first or second tooth above.
Inflorescence: Paniculate, candelabra-like 2,5-4,5(-6) m tall, not bulbiferous,. Stalk slender with scarious triangular bracts 8-15 cm long, bearing 6 to 15 short spreading umbels near the top with.
Flowers: 12–48 per cluster, erect, yellow, 40-60 mm long. Ovary 22-40 mm long constricted near the tube, greenish; Perianth tube funnelform, (3–)5–10 mm long lined with a thick nectiferous disk. Tepals 14-20 mm long, 6-8 mm wide, light yellow, broadly linear, spreading, rounded and abruptly hooked inward at apex. Filaments 25-35 mm long, inserted above middle but well within tube; anthers 13-18 mm long, yellow. The flowers that are attractive to hummingbirds.
Blooming season: May to July
Fruits: Loculicidal capsules, short-pedicellate, ovoid to oblong or obovoid, 3,5-5,5 cm long, 1,5-1,8 cm in ndiameter, thick walled.
Seeds: Black, 4-5 x 5-6 mm broad. An individuals inflorescences may produce up to 65000 seeds!
Subspecies, varieties, forms and cultivars of plants belonging to the Agave deserti group
- Agave deserti Engelm.: (subsp. deserti) plants clumps freely usually with numerous rosettes; perianth tube, campanulate, 3-5 mm; filaments inserted at top of tube. Distribution: Southern California.
- Agave deserti subs. pringlei (Baker) Gentry: has narrower, less glaucous leves, and the terminal spine is decurrent into the corneous margin along the leaf-tip.
- Agave deserti subs. simplex Gentry: Plants usually solitary with one or only a few rosettes; perianth tube funnelform (3-)5-10 mm; filaments inserted above middle but well within tube. Distribution: Southern California and Arizona.
Bibliography: Major references and further lectures
1) Steven J. Phillips, Patricia Wentworth Comus, Arizona-Sonora Desert Museum (Tucson, Ariz.) “A natural history of the Sonoran Desert” University of California Press, 2000
2) aymond M. Turner, Janice E. Bowers, Tony L. Burgess “Sonoran Desert plants: an ecological atlas” University of Arizona Press, 2005
3) Sia Morhardt, Emil Morhardt “California desert flowers: an introduction to families, genera, and species” University of California Press, 01/Mar/2004
4) Judy Mielke “Native Plants for Southwestern Landscapes” University of Texas Press, 1993
5) Howard Scott Gentry “Agaves of Continental North America” University of Arizona Press, 01/Feb/2004
6) Urs Eggli “Illustrated Handbook of Succulent Plants: Monocotyledons” Springer, 2001
7) Hermann Jacobsen ”A Handbook of Succulent Plants: Abromeitiella to Euphorbia” Blandford Press, 1960
8) Dole, Jim W. and Rose, Betty B., “Shrubs and Trees of the Southern California Deserts” Foot-Loose Press.1996
9) Yvonne Cave “Succulents for the contemporary garden” Timber Press, 01/gen/2003
10) Stanley Desmond Smith, R. K. (Russell K.) Monson “Physiological ecology of north American desert plants: with 86 figures and 21 tables” Springer, 1997
Cultivation and Propagation: Agave deserti is one of the most easy-to-grow species though relatively slow growing.
Growing rate: Agave deserti is a very slow-growing species; even in cultivation with generous irrigation it takes at least 20 years to flower.
Soil: It needs a very well-drained, soil.
Repotting: Use pot with good drainage.
Watering: Water regularly during the growing season from spring to autumn. In winter watering this plant can be done once every 1-2 months, there is no need to mist the leaves. Plants cultivated outdoors are drought tolerant and takes blasting heat and full sun.
Exposure: It do well in full sun or a lightly shaded area.
Feeding: During the beautiful season it’s good to enrich the soil using a fertilizer rich in potassium and phosphorous, but poor in nitrogen, because this chemical element doesn’t help the development of succulent plants, making them too soft and full of water.
Hardiness: Acclimated seddlings can tolerate temperatures as low as -7° C and mature plants will withstand temperatures as low as – 15° C, particularly when dry but in cultivation it is best to avoid severe freezing temperatures.
Heat Tolerance: Excellent
Uses: Because of their symmetrical form these plants are very attractive when grown in pots, containers, rockeries and embankments. They are quite versatile. Plants can be grouped together or planted among boulders in a rock or cactus garden.
Traditional uses: Agave deserti is one of the more edible agaves used extensively by the desert dwelling Indians. Young flower stalks, buds, and hearts of plants were roasted and eaten. Food thus obtained often became a dietary staple, even into drought years. Alcoholic drinks were also manufactured from the sweet juices of this and other agaves. The fibres of this plant was also used to make cloth, bowstrings, and ropes.
Propagation: Relatively easy to propagate by seeds or by suckers (if available). Sow at any time of year in a well-aerated compost at a temperatures of 22-24°C . Stand the pots in water, moisten thoroughly and drain. Scatter and press lightly the seed onto the top of the compost. But do not cover the small seeds with compost. Secure a polythene bag around the pot or cover the container with glass or and place in a warm shaded place. If possible, germinate in a propagator. Some seedlings may appear within a week or 10 days others will take longer. At lower temperatures, germination usually takes considerably longer. Once germination has taken place, remove gradually the glass or plastic and move into a good light but not in direct sun. If the young plants are exposed to too much sun, or the compost dries out, they may stop growing and often turn red; once they stop, it is often difficult to persuade them to start growing again. Never let the pots dry out-but don't saturate them either. A sodden compost is as harmful as a dry one.
Remove the basal suckers in spring or summer and let the cuttings dry for a few days before inserting in compost.
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