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Agave (view source)

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__NOTOC__{{Plantbox
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| name = ''Agave''
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| common_names = Agave
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| growth_habit = herbaceous
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| high = ?  <!--- 1m (3 ft) -->
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| wide =    <!--- 65cm (25 inches) -->
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| origin = ?  <!--- Mexico, S America, S Europe, garden, etc -->
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| poisonous = some have juice causing acute rash
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| lifespan = perennial
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| exposure = full sun, part-shade{{SSN}}
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| water = usually moderate to little{{SSN}}
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| features =    <!--- flowers, fragrance, fruit, naturalizes, invasive -->
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| hardiness =    <!--- frost sensitive, hardy, 5°C (40°F), etc -->
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| bloom =    <!--- seasons which the plant blooms, if it is grown for its flowers -->
 +
| usda_zones = ?  <!--- eg. 8-11 -->
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| sunset_zones = vary by species
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| color = IndianRed
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| image = Agave americana a-m.jpg
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| image_width = 240px    <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
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| image_caption = [[Agave_americana|''Agave americana'' (Century Plant)]]
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| regnum = Plantae
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| divisio = Magnoliophyta
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| classis = Liliopsida
 +
| ordo = Asparagales
 +
| familia = Agavaceae
 +
| genus = Agave
 +
}}
 
{{Inc|
 
{{Inc|
−
Agave (Greek, agauos, admirable). Amaryllidaceae. Important decorative and economic plants from hot American deserts, the most  
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[[Image:Agave_chiapensis_whole.jpg|thumb|right|200px|the large flower spike of ''[[Agave_chiapensis|Agave chiapensis]]'']]
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familiar of which is A. americana, the Century Plant, or American Aloe.
+
AGAVE (Greek, agauos, admirable). Amaryllidaceae. Important decorative and economic plants from hot American deserts, the most familiar of which is A. americana, the Century Plant, or American Aloe.
    
Stem short or wanting: lvs. mostly in a close rosette, usually stiff and more or less fleshy, persisting from year to year, the margins mostly armed with teeth and the apex tipped with a usually pungent spine: fls. in spikes (Littaea) or panicles (Euagave); perianth 6-parted, more or less funnel-shaped; stamens 6, mostly long-exserted; style 1; stigma capitately 3-lobed; ovary inferior, 3-celled; seeds numerous, flat, thin, black.—Some species flower but once and die, others occasionally, while others flower from year to year. The number of species is fully 300, and more than 325 have been described, largely from the Mexican tableland, although each island of the W. Indies possesses its peculiar species. One of the largest collections is at Kew, where there are 85 named species. The largest collections in the U. S. are at the Botanical Garden of Washington and the Missouri Botanical Garden, where there are about 75 species each. Amateurs often cult. a greater number of species than are described in this account.
 
Stem short or wanting: lvs. mostly in a close rosette, usually stiff and more or less fleshy, persisting from year to year, the margins mostly armed with teeth and the apex tipped with a usually pungent spine: fls. in spikes (Littaea) or panicles (Euagave); perianth 6-parted, more or less funnel-shaped; stamens 6, mostly long-exserted; style 1; stigma capitately 3-lobed; ovary inferior, 3-celled; seeds numerous, flat, thin, black.—Some species flower but once and die, others occasionally, while others flower from year to year. The number of species is fully 300, and more than 325 have been described, largely from the Mexican tableland, although each island of the W. Indies possesses its peculiar species. One of the largest collections is at Kew, where there are 85 named species. The largest collections in the U. S. are at the Botanical Garden of Washington and the Missouri Botanical Garden, where there are about 75 species each. Amateurs often cult. a greater number of species than are described in this account.
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The agaves are not at all difficult to grow. The soil should be principally loam and sand, and if any vegetable soil be given it should be in small quantities. Good drainage and firm potting are necessary. To grow small plants of the large-leaved kinds into good-sized specimens quickly, they should be plunged out in a sunny spot in spring, taking care that the pots are large enough so that they will not require repotting in the fall. Nearly all of the large-growing kinds are easily increased from suckers, which, when the plants are grown in a pot-bound condition, are produced very readily. They should be taken off from the parent plant only when furnished with sufficient roots to give thorn a start. Some kinds are raised only from seeds, which, when freshly gathered, germinate in a few weeks.
 
The agaves are not at all difficult to grow. The soil should be principally loam and sand, and if any vegetable soil be given it should be in small quantities. Good drainage and firm potting are necessary. To grow small plants of the large-leaved kinds into good-sized specimens quickly, they should be plunged out in a sunny spot in spring, taking care that the pots are large enough so that they will not require repotting in the fall. Nearly all of the large-growing kinds are easily increased from suckers, which, when the plants are grown in a pot-bound condition, are produced very readily. They should be taken off from the parent plant only when furnished with sufficient roots to give thorn a start. Some kinds are raised only from seeds, which, when freshly gathered, germinate in a few weeks.
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{{SCH}}
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}}
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==Cultivation==
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{{edit-cult}}<!--- Type cultivation info below this line, then delete this entire line -->
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===Propagation===
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{{edit-prop}}<!--- Type propagation info below this line, then delete this entire line -->
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 +
===Pests and diseases===
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{{edit-pests}}<!--- Type pest/disease info below this line, then delete this entire line -->
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 +
==Species==
 +
There are many species of Agave, see the [[List of Agave species|List of ''Agave'' species]].
 +
 +
Selected species:
 +
*''[[Agave americana]]'' - Century plant
 +
*''[[Agave attenuata]]''
 +
*''[[Agave filifera]]''
 +
*''[[Agave parryi huachucensis]]''
 +
*''[[Agave victoriae-reginae]]''
    +
{{Inc|
 
The classification of the agaves is very perplexing. This is partially owing to the number of species, to the scarcity of preserved study material, and to the infrequency of flowering in many species. In fact, many species have never been known to flower. The most usable characters for classification are to be found in the leaves, of which the end-spine and marginal prickles are very characteristic, and, although such an arrangement is more or less artificial, it is the most satisfactory in naming a collection. From a botanical point of view, however, the inflorescence shows the true relationship of the species. In this way the genus is usually divided into three groups or subgenera. These are: First, Euagave, having a paniculate inflorescence, with candelabra-like branches, Second, Littaea, having a dense spike of usually paired flowers. (The section Litteae has been considered by some a good genus, but it seems to connect with the first section through certain species.) The third section, Manfreda, is very different from the above, and is now considered as a distinct generic type, and so treated here. Manfredas are all herbaceous, appearing each year from a bulbous base: the leaves are soft and weak, dying down annually, while the inflorescence is a slender open spike, with solitary flowers from the axils of bracts.
 
The classification of the agaves is very perplexing. This is partially owing to the number of species, to the scarcity of preserved study material, and to the infrequency of flowering in many species. In fact, many species have never been known to flower. The most usable characters for classification are to be found in the leaves, of which the end-spine and marginal prickles are very characteristic, and, although such an arrangement is more or less artificial, it is the most satisfactory in naming a collection. From a botanical point of view, however, the inflorescence shows the true relationship of the species. In this way the genus is usually divided into three groups or subgenera. These are: First, Euagave, having a paniculate inflorescence, with candelabra-like branches, Second, Littaea, having a dense spike of usually paired flowers. (The section Litteae has been considered by some a good genus, but it seems to connect with the first section through certain species.) The third section, Manfreda, is very different from the above, and is now considered as a distinct generic type, and so treated here. Manfredas are all herbaceous, appearing each year from a bulbous base: the leaves are soft and weak, dying down annually, while the inflorescence is a slender open spike, with solitary flowers from the axils of bracts.
   Line 24: Line 73:  
albida, 11. Bonnetii, 11. compacta, 11, 47.
 
albida, 11. Bonnetii, 11. compacta, 11, 47.
 
altissima, 21. Bonnetiana, 11, 18.
 
altissima, 21. Bonnetiana, 11, 18.
−
   
compluviata, 19.
 
compluviata, 19.
 
americana, 19, 21. Boscii, 49. concinna,  
 
americana, 19, 21. Boscii, 49. concinna,  
−
   
6.
 
6.
 
amaena, 11. Botterii, 34. Considerantii,  
 
amaena, 11. Botterii, 34. Considerantii,  
−
   
44.
 
44.
 
amurensis, 43. bracteosa, 55. Cookei, 1.
 
amurensis, 43. bracteosa, 55. Cookei, 1.
 
anacantha, 2. brevifolia, 47. Corderoyi, 5.
 
anacantha, 2. brevifolia, 47. Corderoyi, 5.
 
ananassoides, 8. brevis, 2. cornuta,  
 
ananassoides, 8. brevis, 2. cornuta,  
−
   
43.
 
43.
 
angustifolia, 1. bulbifera, 9. Couesii,  
 
angustifolia, 1. bulbifera, 9. Couesii,  
−
   
14.
 
14.
 
angustissima, 48. candicans, 6.
 
angustissima, 48. candicans, 6.
−
   
crassispina, 19.
 
crassispina, 19.
 
applanata, 13, 14. candida, 6. crenata,  
 
applanata, 13, 14. candida, 6. crenata,  
−
   
11.
 
11.
 
artichaut, 40. caribaea, 32. Croucheri, 11.
 
artichaut, 40. caribaea, 32. Croucheri, 11.
Line 51: Line 93:  
attenuata, 28. chiapensis, 33, cyanea, 10.
 
attenuata, 28. chiapensis, 33, cyanea, 10.
 
auricantha, 11. chihuahuana, 15.
 
auricantha, 11. chihuahuana, 15.
−
   
cyanophylla, 10.
 
cyanophylla, 10.
 
Bakeri, 5. chloracantha, 32.
 
Bakeri, 5. chloracantha, 32.
−
   
dasylirioides, 53.
 
dasylirioides, 53.
 
Beaucarnei, 39. coarctata, 18. dealbata, 51, 53.
 
Beaucarnei, 39. coarctata, 18. dealbata, 51, 53.
 
Beauleuriana, 10. coccínea, 12.
 
Beauleuriana, 10. coccínea, 12.
−
   
decipiens, 4.
 
decipiens, 4.
 
Bessereriana, 6. cochlearis, 19. denea,  
 
Bessereriana, 6. cochlearis, 19. denea,  
−
   
33, 47.
 
33, 47.
 
densiflora, 31, 33. lucida, 10. Richardeii, 51.
 
densiflora, 31, 33. lucida, 10. Richardeii, 51.
−
   
depauperata, 47. lurida, 1, 10. rígida, 2, 3, 7.  
 
depauperata, 47. lurida, 1, 10. rígida, 2, 3, 7.  
−
   
desertí , 25. macracantha, 6. rigidissima, 39.  
 
desertí , 25. macracantha, 6. rigidissima, 39.  
−
   
DeSmettiana, 8, 42. macroacantha, 6. robusta, 47.
 
DeSmettiana, 8, 42. macroacantha, 6. robusta, 47.
−
   
Diguetii, 48. macroculmis, 12. Roezlei, 50.
 
Diguetii, 48. macroculmis, 12. Roezlei, 50.
 
diplacantha, 39. macrodonta, 39. Roesliana, 40.  
 
diplacantha, 39. macrodonta, 39. Roesliana, 40.  
−
   
distans, 39. Maigretiana, 42. Rohanii. 41.  
 
distans, 39. Maigretiana, 42. Rohanii. 41.  
−
   
echinoides, 51. major, 6, 39, 43, 47. Romani, 35,  
 
echinoides, 51. major, 6, 39, 43, 47. Romani, 35,  
−
   
47.
 
47.
 
elegans, 11. Manguai, 9. roses, 51. Ellemeetiana,  
 
elegans, 11. Manguai, 9. roses, 51. Ellemeetiana,  
−
   
29. Mapisaga, 19. rotundifolia, 11. elliptica,  
 
29. Mapisaga, 19. rotundifolia, 11. elliptica,  
−
   
28. Marcussi, 14. rupicola, 32. elongata, 6.  
 
28. Marcussi, 14. rupicola, 32. elongata, 6.  
−
   
marginata, 1, 19, 21. Salmdyckii, 33.
 
marginata, 1, 19, 21. Salmdyckii, 33.
 
ensifera, 37. maritima, 48. Salmiana, 19.
 
ensifera, 37. maritima, 48. Salmiana, 19.
−
   
ensiformis, 51. marmorata, 23. Sargentii, 1.  
 
ensiformis, 51. marmorata, 23. Sargentii, 1.  
−
   
europeae, 21. massiliensis, 21,33. Saundersii,  
 
europeae, 21. massiliensis, 21,33. Saundersii,  
−
   
11. falcata, 52. Maximiliana, 43. schidigera, 48.  
 
11. falcata, 52. Maximiliana, 43. schidigera, 48.  
−
   
ferox, 17. medio-picta, 3, 21,30, schiedigera,  
 
ferox, 17. medio-picta, 3, 21,30, schiedigera,  
−
   
48.
 
48.
 
filamentoes, 47. 43. Schottii, 45. filifera, 47,  
 
filamentoes, 47. 43. Schottii, 45. filifera, 47,  
−
   
48. melliflus, 19. Scolymus, 12.
 
48. melliflus, 19. Scolymus, 12.
 
flaccida, 12. mesotillo, 36. Sebastiana, 16.
 
flaccida, 12. mesotillo, 36. Sebastiana, 16.
−
   
flavescens, 6. mexicana, 9, 19, 22 serrulata, 45.  
 
flavescens, 6. mexicana, 9, 19, 22 serrulata, 45.  
−
   
fourcroydes, 3. micracantha, 30, 32, 42 Shawii,  
 
fourcroydes, 3. micracantha, 30, 32, 42 Shawii,  
−
   
16. fragilis, 41. silvestris, 3
 
16. fragilis, 41. silvestris, 3
 
Fransosinii, 20. Milleri, 21, 22. Simonii, 11.
 
Fransosinii, 20. Milleri, 21, 22. Simonii, 11.
 
Funkiana, 36. minima. 3. Simeii, 11
 
Funkiana, 36. minima. 3. Simeii, 11
 
geminiflora, 49. minor, 47. sisala, 2.  
 
geminiflora, 49. minor, 47. sisala, 2.  
−
   
Ghiesbrechtii, 41. miradorensis, 8. sisalana, 2.
 
Ghiesbrechtii, 41. miradorensis, 8. sisalana, 2.
 
Ghiesbreghtii, 41, 42. mitis, 32. spectabilis, 21
 
Ghiesbreghtii, 41, 42. mitis, 32. spectabilis, 21
 
gigantea, 6. mitraeformis, 18. spicata, 54.  
 
gigantea, 6. mitraeformis, 18. spicata, 54.  
−
   
Gilbeyi, 40. Morganii, 42. spiralis, 4.  
 
Gilbeyi, 40. Morganii, 42. spiralis, 4.  
 
glauca, 6, 51. multiflora, 33. squalidens, 41.  
 
glauca, 6, 51. multiflora, 33. squalidens, 41.  
−
   
glaucescens, 28, 32. multilineata, 36.  
 
glaucescens, 28, 32. multilineata, 36.  
−
   
stenophylla, 36.
 
stenophylla, 36.
 
Goldmaniana, 16. nana, 6, 51. streptacantha, 11.
 
Goldmaniana, 16. nana, 6, 51. streptacantha, 11.
−
   
gracilipes, 14. neglecta, 7. striata, 21, 50, 51.  
 
gracilipes, 14. neglecta, 7. striata, 21, 50, 51.  
−
   
gracilispina, 19. Newberryi, 27. stricta, 51.  
 
gracilispina, 19. Newberryi, 27. stricta, 51.  
−
   
grandibracteata, 11. Nickelsiae, 44. subdentata,  
 
grandibracteata, 11. Nickelsiae, 44. subdentata,  
−
   
29.
 
29.
 
grandidens, 41. nigrescens, 36. subfalcata, 6.
 
grandidens, 41. nigrescens, 36. subfalcata, 6.
−
   
grandidentata, 41. nigrispina, 6. subintegra, 39.  
 
grandidentata, 41. nigrispina, 6. subintegra, 39.  
−
   
granulosa, 42. Nissoni, 36. subundulata 28.
 
granulosa, 42. Nissoni, 36. subundulata 28.
 
Guignardii, 11, 28. Noah, 15. sudburyensis, 6.
 
Guignardii, 11, 28. Noah, 15. sudburyensis, 6.
−
   
Hanburii, 40. ' obscura, 41. superba, 1.
 
Hanburii, 40. ' obscura, 41. superba, 1.
−
   
Havardiana, 14. orbicularis, 11. Taylori, 33, 47,  
 
Havardiana, 14. orbicularis, 11. Taylori, 33, 47,  
−
   
49.
 
49.
 
Haworthiana, 10. Orcuttiana, 16. tehuacanensis.  
 
Haworthiana, 10. Orcuttiana, 16. tehuacanensis.  
−
   
11, 18.  
 
11, 18.  
 
heteracantha, 36, 38. Ortgiesiana, 48. tequilana,  
 
heteracantha, 36, 38. Ortgiesiana, 48. tequilana,  
−
   
4.  
 
4.  
 
histrix, 51. Ottonis, 33. tetragona, 36.
 
histrix, 51. Ottonis, 33. tetragona, 36.
 
horrida, 39, 40, 42. Ousselghemiana, 30. Todaroi,  
 
horrida, 39, 40, 42. Ousselghemiana, 30. Todaroi,  
−
   
23.
 
23.
 
Houghii, 54. ovalifolia. 11. torta, 43.  
 
Houghii, 54. ovalifolia. 11. torta, 43.  
−
   
Houlletiana or Houllettii, 2. pachyacantha, 16.  
 
Houlletiana or Houllettii, 2. pachyacantha, 16.  
−
   
Toumeyana, 45.  
 
Toumeyana, 45.  
 
huschucensis, 14. Palmeri, 24. triangularis, 39.
 
huschucensis, 14. Palmeri, 24. triangularis, 39.
−
   
hybrida, 43. parrasana, 15. Troubetskoyana, 23.
 
hybrida, 43. parrasana, 15. Troubetskoyana, 23.
 
hystrix, 6, 51. Parryi, 14. uncinata, 33.  
 
hystrix, 6, 51. Parryi, 14. uncinata, 33.  
−
   
inermis, 36. parviflora, 46. undulata, 23.
 
inermis, 36. parviflora, 46. undulata, 23.
−
   
Inghamii, 40. Patonii, 15. univittata, 37.
 
Inghamii, 40. Patonii, 15. univittata, 37.
 
integrifolia, 6. paucibracteata, 28. utahensis,  
 
integrifolia, 6. paucibracteata, 28. utahensis,  
−
   
27.
 
27.
 
intrepida, 53. paucifolia, 6, 50. Vanderdonckii,  
 
intrepida, 53. paucifolia, 6, 50. Vanderdonckii,  
−
   
43.  
 
43.  
 
ixtli, 2, 3. Peacockii, 40. variegata, 47.  
 
ixtli, 2, 3. Peacockii, 40. variegata, 47.  
−
   
iitlioides, 1, 3. perbella, 37, 43. vera-crucis,  
 
iitlioides, 1, 3. perbella, 37, 43. vera-crucis,  
−
   
9. Jacquiniana, 1. perplexans, 46. vera-
 
9. Jacquiniana, 1. perplexans, 46. vera-
−
   
crux, 9. juncea, 49. Pfersdorffii, 35, 43.  
 
crux, 9. juncea, 49. Pfersdorffii, 35, 43.  
−
   
vera-crux, 9. Karwinskii 5. picta 22. verse  
 
vera-crux, 9. Karwinskii 5. picta 22. verse  
−
   
crucis 9. Kerchovii, 39. Pilgrimii, 42.  
 
crucis 9. Kerchovii, 39. Pilgrimii, 42.  
−
   
Verschaffeltii, 11.
 
Verschaffeltii, 11.
 
Killischii, 40. polyscantha, 33. vestita, 48.
 
Killischii, 40. polyscantha, 33. vestita, 48.
−
   
Knightiana, 48. polyphylla, 10. Victoriae  
 
Knightiana, 48. polyphylla, 10. Victoriae  
−
   
Reginae, 44.  
 
Reginae, 44.  
 
Kochii, 43. Poselgeri, 36. Villae, 43.
 
Kochii, 43. Poselgeri, 36. Villae, 43.
 
laetevirens, 21. potosina, 19. Villarum, 43, 47.
 
laetevirens, 21. potosina, 19. Villarum, 43, 47.
−
   
laevior, 40. princeps, 48. virginia, 21.
 
laevior, 40. princeps, 48. virginia, 21.
−
   
lanceolata, 11. prolifera, 3. viridis, 6, 22.
 
lanceolata, 11. prolifera, 3. viridis, 6, 22.
−
   
laticincta, 41. pseudofilifera, 47. vivipara, 1,  
 
laticincta, 41. pseudofilifera, 47. vivipara, 1,  
−
 
+
7. latifolia, 4, 6, 28, 43. pugioniformis, 6.  
−
7.  
  −
latifolia, 4, 6, 28, 43. pugioniformis, 6.  
  −
 
   
Whitakeri, 19.
 
Whitakeri, 19.
 
latissima, 19, 28. pulverulenta, 11. Wightii, 1.  
 
latissima, 19, 28. pulverulenta, 11. Wightii, 1.  
 
laxifolia, 4. purpurea, 51. Wislizeni, 15.
 
laxifolia, 4. purpurea, 51. Wislizeni, 15.
−
   
Lecheguilla, 36. quadrata, 11. Wolkensteinii, 33.  
 
Lecheguilla, 36. quadrata, 11. Wolkensteinii, 33.  
−
  −
{{Inc|
   
Leguayana, 41. quiotifers, 19. Woodrowii, 1.  
 
Leguayana, 41. quiotifers, 19. Woodrowii, 1.  
−
   
Lemairei, 39. ramosa, 21. Wrightii, 49.  
 
Lemairei, 39. ramosa, 21. Wrightii, 49.  
−
   
Leopoldii, 11, 47, 48. recurva, 50. xalapensis,  
 
Leopoldii, 11, 47, 48. recurva, 50. xalapensis,  
−
   
35.
 
35.
 
lepida, 10. reccurvata, 7. xylonacantha, 43.
 
lepida, 10. reccurvata, 7. xylonacantha, 43.
 
linearis, 6. Regelii, 40. yuccaefolia, 54.
 
linearis, 6. Regelii, 40. yuccaefolia, 54.
 
longifolia, 3, 6, 22, 43, 47. Regeliana, 8, 40.  
 
longifolia, 3, 6, 22, 43, 47. Regeliana, 8, 40.  
−
   
Zapupe, 4. rhomboidea, 11. zonata, 19.
 
Zapupe, 4. rhomboidea, 11. zonata, 19.
 
lopantha, 37.
 
lopantha, 37.
Line 225: Line 200:  
B. Lvs. dagger-like or sword-shaped: spine not decurrent: fls. rather large, greenish, long-lobed. ill-smelling, often followed by bulbils; seeds very large. Trunk often developed.
 
B. Lvs. dagger-like or sword-shaped: spine not decurrent: fls. rather large, greenish, long-lobed. ill-smelling, often followed by bulbils; seeds very large. Trunk often developed.
 
C. Fls. urceolately contracted in throat.
 
C. Fls. urceolately contracted in throat.
−
}}
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__NOTOC__{{Plantbox
  −
| name = ''Agave''
  −
| common_names = Agave
  −
| growth_habit = herbaceous
  −
| high = ?  <!--- 1m (3 ft) -->
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| wide =    <!--- 65cm (25 inches) -->
  −
| origin = ?  <!--- Mexico, S America, S Europe, garden, etc -->
  −
| poisonous = some have juice causing acute rash
  −
| lifespan = perennial
  −
| exposure = full sun, part-shade{{SSN}}
  −
| water = usually moderate to little{{SSN}}
  −
| features =    <!--- flowers, fragrance, fruit, naturalizes, invasive -->
  −
| hardiness =    <!--- frost sensitive, hardy, 5°C (40°F), etc -->
  −
| bloom =    <!--- seasons which the plant blooms, if it is grown for its flowers -->
  −
| usda_zones = ?  <!--- eg. 8-11 -->
  −
| sunset_zones = vary by species
  −
| color = IndianRed
  −
| image = Agave americana a-m.jpg
  −
| image_width = 240px    <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
  −
| image_caption = [[Agave_americana|''Agave americana'' (Century Plant)]]
  −
| regnum = Plantae
  −
| divisio = Magnoliophyta
  −
| classis = Liliopsida
  −
| ordo = Asparagales
  −
| familia = Agavaceae
  −
| genus = Agave
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[[Image:Agave_chiapensis_whole.jpg|thumb|right|200px|the large flower spike of ''[[Agave_chiapensis|Agave chiapensis]]'']]
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AGAVE (Greek, agauos, admirable). Amaryttidacese. Important decorative and economic plants from hot American deserts, the most familiar of which is A. americana, the Century Plant, or American Aloe.
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Stem short or wanting: Ivs. mostly in a close rosette, usually stiff and more or less fleshy, persisting from year to year, the margins mostly armed with teeth and the apex tipped with a usually pungent spine: us. in spikes (Littsea) or panicles (Euagave); perianth 6-parted, more or less funnel-ehaped; stamens 6. mostly long- exserted; style 1; stigma capitately 3-lobed; ovary inferior, 3-celled; seeds numerous, flat, thin, black.—Some species flower but once and die, others occasionally, while others flower from year to year. The number of species is fully 300, and more than 325 have been described, largely from the Mexican tableland, although each island of the W. Indies possesses its peculiar species. One of the largest collections is at Kew, where there are 85 named species. The largest collections in the U. S. are at the Botanical Garden of Washington and the Missouri Botanical Garden, where there are about 75 species each. Amateurs often cult, a greater number of species than are described in this account.
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Agaves are essentially fanciers' or amateurs' plants. This noble group of plants has never received the attention it deserves, and yet no genus of plants in America furnishes so many suitable decorative plants. Sir Joseph Hooker places it next to the palm and aloe, but the former is a great family of 1,100 species. While in the United States one thinks of the agaves only as decorative plants, yet in Mexico, then- native home, they are the most useful of plants. Many species furnish fiber, others soap, while still others produce the two great Mexican drinks, pulque and mescal. Pulque, which is a fermented drink, is derived from several species, especially A. atrovi- rcns. Mescal, which is a distilled drink, is usually not obtained from the same species as pulque, although there is a general belief to the contrary. The species from which is made most of the mescal used in Mexico is unknown.—The species vary so much in size and form that they can be used in a great many ways. Some of the smaller species are suitable for the house, and even some of the larger species are so used. The larger species are well adapted for vases in large gardens and grounds, along walks, terraces, and the like. These plants, coming, as they do, from arid or even desert regions, where they have a hard struggle to exist, can be grown with little or no care, but they respond very quickly to good treatment. —The species are propagated in various ways; some produce suckers at the base, or even underground shoots; others give off buds from the stem, which fall off and take root, or may be detached and planted; while not a few produce bulblets in the flower-clusters, and sometimes in great abundance. Nearly all may be produced from seed, but as most of the species flower only after a long interval, and many have not yet been known to flower in cultivation, this latter means of propagation cannot be relied upon. In cultivation, fruit is set very sparingly or not at all without artificial pollination, although this can be accomplished with very little trouble.
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The agaves are not at all difficult to grow. The soil should be principally loam and sand, and if any vegetable soil be given it should be in small quantities. Good drainage and firm potting are necessary. To grow small plante of the large-leaved kinds into good-sized specimens quickly, they should be plunged out in a sunny spot m spring, taking care that the pots are large enough so that they will not require repotting in the fall. Nearly all of the large-growing kinds are easily increased from suckers, which, when the plants are grown in a pot-bound condition, are produced very readily. They should be taken off from the parent plant only when furnished with sufficient roots to give thorn a start. Some kinds are raised only from seeds, which, when freshly gathered, germinate in a few weeks.
   
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==Cultivation==
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===Propagation===
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===Pests and diseases===
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==Species==
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There are many species of Agave, see the [[List of Agave species|List of ''Agave'' species]].
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Selected species:
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*''[[Agave americana]]'' - Century plant
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*''[[Agave attenuata]]''
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*''[[Agave filifera]]''
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*''[[Agave parryi huachucensis]]''
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*''[[Agave victoriae-reginae]]''
      
==Gallery==
 
==Gallery==
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