Agave ferox K.Koch

국표에 없다.

Origin and Habitat: Central and southern Mexico. It is also widely cultivated and naturalized in tropical countries.

Synonyms:

• Agave salmiana var. ferox (K.Koch) Gentry

Common Names include:
ARABIC ( لعربية ): أجاف فيروكس
CATALAN (Català): Pulque, Maguey, Maguey de montaña
ESTONIAN (Eesti): Tugevaogaline agaav
FINNISH (Suomi): Siniagaave
SPANISH (Español): Pulque, Maguey, Maguey de montaña
UKRAINIAN (Українська): Агава ферокс

 

Description: Agave salmianaSN|27883]]SN|27883]] var. ferox is a huge scary agave often encountered in cultivation. Over time it will produce a an urn-shaped silhouette made up of very broad , and well-armed, leaves (up to 35 cm wide). The epithet ferox is due to the hard and long (up to 8 cm) apical spines. This Agave is truly one of the most amazing species one can grow, ultimately reaching dimensions of 3,5 metres wide or more. When the plant matures produces a very tall (up to 9 metres) candelabra-like spike, with bright yellow blooms that attract birds and bees. Like many in its family plant dies after blooming and offsets take over.
Similar species: There is a ample variability in shape and colour of leaves this may owe to differences in provenance or to the possibility that many plants considered to be this species are actually a form of Agave americana subs. Protamericana, which is much hardier. Agave salmianaSN|27883]]SN|27883]] var. ferox intergrades with var. salmiana.
Habit: Perennial, very large evergreen rosetting succulent forming ample suckers which can lead to a large colony if suckers are not removed. It is monocarpic.
Stem: Short and thick.
Rosette: Large, loosely leaved,
Leaves: 1-2 m long, 20-35 cm or more wide, broadly lanceolate to oblanceolate, narrowed towards the base, tapered above, acuminate, firm and smooth, rigid, grey-green to glaucous grayish, deeply convex below at base, concave to guttered upward, the apex sigmoidally curved. Margins sinuous. Marginal spines brown to grayish brown, 1-2 cm (including the fleshy mammillate cushions on which they stand), confluent at the base of the leaf, the median spines 2-3 cm distant. the upper 7-8 cm distant. Terminal spine 5-10 cm, black-brown grooved above for over half its length. long-decurrent sometimes to mid-blade as a heavy corneous margin.
Inflorescence: Stout, paniculate. Peduncle closely imbricate with large fleshy bracts, (6-)7-8(-9) m tall. Panicle broad, with 15-20 large loose umbels in upper half of shaft.
Flowers: Coarsely fleshy 8-11 cm long, frequently flushed reddish in the bud but opening yellow or greenish yellow. Ovary green50-60 mm long, thick, cylindric. Tube large funnelform, 21-24 mm deep, 20 mm broad, thick-walled. Tepals dimorphic, narrow, involute, the inner 2-3 mm shorter with high fleshy keel bordered by thin, hyaline, inrolling margins, the outer 21-25 x 6 mm and bulging at base. Filaments 55-70 mm long, inserted above mid-tube. Anthers 30-35 mm long, yellow. Pistil over-reaching stamens.
Blooming season: Spring (in habitat late March to June appears to be the principal flowering season.) Under right condition it would bloom in 10 years.
Fruits (capsules): 5.5-7 x 2-2.2 cm, stipitate, beaked, woody, brown.
Seeds: 8-9 x 6-7 mm, black, tear-shaped.

Agave ferox (llifle.com)