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Origin and Habitat: Northern Mexico and southern portions of Arizona and New Mexico.
Habitat: Rocky hillsides and mesas, in grama grasslands and oak woodlands.
- Agave palmeri Engelm.
Agave palmeri Engelm.
Trans. Acad. Sci. St. Louis 3: 319 1875
Agave palmeri subs. chrysantha (Peebles) B.Ullrich
Ander. Sukkulenten 18: 4 (1991 publ. 1992);. cf. Repert. Pl. Succ. (I.O.S.), 43: 5 (1992 publ. 1993)
ENGLISH: Palmer Agave, Palmer Century Plant, Palmer's Century Plant
SICILIAN (Sicilianu): Maguey Centuspati di Palmer
SPANISH (Español): Maguey de tlalcoyote
Description: It is a compact agave with blue-green leaves. A. palmeri is closely related to Agave schrevei, Agave chrysantha, Agave applanata and Agave murphevi.
Rosettes: Medium-sized to 40-90(-150) cm tall 60-120(-150) cm in diameter. In the wild it doesn’t produce offsets, but occasionally produces them in cultivation.
Leaves: Blue-green to grey-green sometimes marked with transverse ridges, narrow, lance-shaped and flexible up to 60 cm long, 6-10 cm. broad, quite thick, especially at the base and often twisted in all directions. Margin with many reddish brown teeth 3-6 mm long, 1-2 cm apart developed on a nipple, especially present in the second part of the leaf-blade. It has a strong terminal spine 2-6 cm long. Often leaves take purple-red nuances under stress conditions.
Inflorescence: 2-3,5(-5) m tall, often to 12 cm in diameter at base, branched with horizontal branches in the upper one-half of the stalk.
Flowers: Greenish yellow, clustered at the ends of the lateral branches. Fowers in clusters, 4-5,5 cm. long, tube to15 mm. deep; perianth segments about equaling tube, greenish with purple; stamens inserted near middle of tube; ﬁlaments 3-5 cm. long, purplish anthers, 12-18 mm. long, greenish yellow; ovary 3-5 mm. long, 6-7 mm. in diameter.
Blooming season: Flower stalks begin to appear in late spring at the end of its life cycle, with full flowering occurring in mid-summer.
Fruit: Capsule cylindrical to narrowly obpyriform, 15-17 mm. in diameter at apex, 5-6 mm. wider at base, 4-6,5 cm. long.
Seeds: 4 mm. wide, 5-6 mm. long, compressed.
Remarks: The so called A. palmeri “Ruby” is the more common form in cultivation, it comes from the area of Ruby, Arizona. It is flushed in purple-red when grown in full sun. The correct determination of many species of agaves is very difficult in young specimens with less than 2-4 years of age, depending on species. Some characteristics like colours, shapes of leaves, shape of the plants, size and distribution of apical and lateral spines are often variable in the early years. Most species have a juvenile stage. Moreover, within the same planting, despite identical dimensions, the plants can acquire the definitive character at very different ages.
Subspecies, varieties, forms and cultivars of plants belonging to the Agave palmeri group
Cultivation and Propagation: Agave palmeri is hardy to about – 12° C, drought tolerant, growing on 250 to 500 mm of annual rainfall. To achieve the most compact rosettes and best colour, plant Agave palmeri in full sun. As with other Agave species, this one is tolerant of most soils, but should not be over-watered if drainage is poor.
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