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Agave longiflora (synonym Manfreda longiflora) is a species of flowering plant in the family Asparagaceae that is native to the Lower Rio Grande Valley of Texas in the United States and northern Tamaulipas in Mexico.[1] Common names include amole de río, longflower tuberose, and Runyon’s huaco.[3] The type specimens were sent by botanist and photographer Robert Runyon (1881–1968) to the New York Botanical Garden in 1921. Consequently, the species was initially placed in a monotypic genus named in his honour, Runyonia, by Joseph Nelson Rose.[4] The species has been placed in the genus Manfreda, now absorbed into Agave. A. longiflora is a rhizomatous perennial with 3–7 prostrate leaves in a basal rosette.[5] It inhabits hills, terraces and slopes in the semi-arid Tamaulipan mezquital.[6]

References

  1. ^ a b “Manfreda longiflora – (Rose) Verhoek-Williams St. Joseph’s Staff”. NatureServe Explorer. NatureServe. Retrieved 2011-12-09.
  2. ^ a b “Agave longiflora“. World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 2019-04-13.
  3. ^ “Manfreda longiflora“. Integrated Taxonomic Information System. Retrieved 2011-12-09.
  4. ^ “Runyonia longiflora”. Addisonia. 7. New York Botanical Garden: 39–40. 1922. Archived from the original on 2012-04-26. Retrieved 2011-12-09.
  5. ^ Poole, Jackie M.; William R. Carr; Dana M. Price; Jason R. Singhurst (2007). Rare Plants of Texas: a Field Guide. Texas A&M University Press. pp. 304–305. ISBN 978-1-58544-557-8.
  6. ^ “Manfreda longiflora“. CPC National Collection Plant Profile. Center for Plant Conservation. 2010-09-28. Archived from the original on 2011-10-26. Retrieved 2011-12-09.