Difference between revisions of "Agave americana var. americana"
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| − | |hierarchy=Agavaceae;Agave;Agave americana;Agave americana var. americana | + | |hierarchy=Agavaceae;Agave;Agave americana;Agave americana subsp. americana;Agave americana var. americana |
| − | |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Agavaceae]]</div><div class="higher-taxon"><small>genus</small>[[Agave]]</div><div class="higher-taxon"><small>species</small>[[Agave americana]]</div><div class="higher-taxon"><small>variety</small>[[Agave americana var. americana]]</div></div> | + | |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Agavaceae]]</div><div class="higher-taxon"><small>genus</small>[[Agave]]</div><div class="higher-taxon"><small>species</small>[[Agave americana]]</div><div class="higher-taxon"><small>subspecies</small>[[Agave americana subsp. americana]]</div><div class="higher-taxon"><small>variety</small>[[Agave americana var. americana]]</div></div> |
|volume=Volume 26 | |volume=Volume 26 | ||
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|synonyms=Agave gracilispina | |synonyms=Agave gracilispina | ||
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|genus=Agave | |genus=Agave | ||
|species=Agave americana | |species=Agave americana | ||
| + | |subspecies=Agave americana subsp. americana | ||
|variety=Agave americana var. americana | |variety=Agave americana var. americana | ||
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| − | -->[[Category:Treatment]][[Category:Agave americana]] | + | -->[[Category:Treatment]][[Category:Agave americana subsp. americana]] |
Latest revision as of 21:18, 5 November 2020
Plants acaulescent or short-stemmed; rosettes rather dense. Leaves frequently reflexed, 100–200 × 15–25 cm; blade light green to glaucous-gray, sometimes variegated yellow or whitish; margins undulate to crenate, teeth 5–10 mm; apical spine subulate, 3–5 cm. Scape 5–9 m. Inflorescences: lateral branches 15–35. Flowers 7–10 cm; perianth tube 8–20 mm; ovary 3–4.5 cm. Capsules 4–5 cm. Seeds unknown. 2n = 120.
Phenology: Flowering mid spring–early summer.
Habitat: Sandy places in desert scrub
Elevation: 200 m
Distribution
Tex., e Mexico.
Discussion
The cultivar of Agave americana var. americana, technically a variant of A. americana subsp. americana derived from subsp. protamericana, is planted widely in the warmer regions of the United States and elsewhere in the world; only in the south Texas region of the flora is the plant native. At least five additional variants have been named based on leaf variegation patterns, but none is worthy of formal taxonomic recognition.
Selected References
None.