Eriogonum longifolium var. gnaphalifolium

Eriogonum longifolium Nutt. var. gnaphalifolium Gand. (also known as Eriogonum floridanum Small), commonly referred to as scrub buckwheat is a dicot of the Polygonaceae (smartweed or knotweed) family. It is listed as threatened in the US and endangered in Florida. Within Florida its most closely related species is Eriogonum tomentosum however there are three other varieties of Eriogonum longifolium found in other areas of the US.

Eriogonum longifolium var. gnaphalifolium
Flower
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Eriogonum
Species:
E. longifolium
Variety:
E. l. var. gnaphalifolium
Trinomial name
Eriogonum longifolium var. gnaphalifolium
Gand.

Scrub buckwheat is found in areas of scrub, flatland and sand hills.[1]

Description

It is described as generally having no more than three flowering stems, but stronger plants may have more. Its flowers are described as emerging from an involucre or protective cup found on each branch of its terminal corymb.[2] Flowers are pollinated by a variety of solitary bees, solitary digger wasps and twig nesting wasps, flies and social wasps.[3]

According to the US Fish and Wildlife Service there is an active habitat management program. Also, there is significant interest in studying its fire tolerance and tendency to bloom or to die following prescribed burning of competing undergrowth.

See also

References
  1. "Scrub Buckwheat" (PDF). Florida Natural Areas Inventory. 2000. Archived from the original (PDF) on 2007-10-12. Retrieved 2007-12-18.
  2. "Scrub Buckwheat" (PDF). US forest Service. Archived from the original (PDF) on 2011-05-26. Retrieved 2007-12-18.
  3. Lohrer, Fred (2002-07-12). "Erioginum longifolium Species Account: Eriogonum longifolium Nutt. var. gnaphalifolium Gandog (Polygonaceae). (also known as Eriogonum floridanum Small)". Plant Ecology Lab, Archbold Biological Station. Archived from the original on 2008-01-21. Retrieved 2007-12-23.
  • Species Account/Biologue - USFWS webpage for Scrub Buckwheat
  • USFWS 1993 - Final ruling regarding seven central Florida plants, including E. longifolium var. gnaphalifolium
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