Difference between revisions of "Nuttallanthus floridanus"

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Common name: Apalachicola Toadflax
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Common name: Apalachicola toadflax, Texas toadflax
 
==Taxonomic notes==
 
==Taxonomic notes==
 
Synonym: ''Linaria floridana'' Chapm.
 
Synonym: ''Linaria floridana'' Chapm.

Revision as of 19:53, 23 August 2016

Nuttallanthus floridanus
Nutt flor-Plant.jpg
Photo by John R. Gwaltney, Southeastern Flora.com
Scientific classification
Kingdom: Plantae
Division: Tracheophyta - Vascular plants
Class: Magnoliopsida – Dicotyledons
Order: Lamiales
Family: Plantaginaceae
Genus: Nuttallanthus
Species: N. floridanus
Binomial name
Nuttallanthus floridanus
(Chapm.) D.A. Sutton
Nutt flor dist.jpg
Natural range of Nuttallanthus floridanus from USDA NRCS Plants Database.

Common name: Apalachicola toadflax, Texas toadflax

Taxonomic notes

Synonym: Linaria floridana Chapm.

The genus Nuttallanthus was separated from Linaria in 1988 by Sutton due to the floral and seed characteristics. [1]

Description

This species is an annual herb that produces bluish, bilabiate, and spurred flowers that attract a variety of insects. [1]

Distribution

N. floridanus is a narrowly distributed species occurring in the Atlantic and Gulf coastal plain in Alabama, Florida, Georgia, and Mississppi. [1]

Ecology

Habitat

Habitats include sparsely vegetated white sands along lakes, scrubs, sand dunes, and dry sandhills.[2] It has been observed growing in disturbed areas such as roadsides. Associated species include Krigia virginica and Crocanthemum. [3]

Phenology

Flowers and fruits in March.[3]

It is an autogamous species and produces both cleistogamous and chasmogamous flowers. The cleistogamous flowers are produced early and late in the life cycle and the chasmogamous flowers are self-pollinated before anthesis and attract insects after anthesis. [1]

Seed dispersal

The seeds are small and lack obvious dispersal mechanisms. [4]

Seed bank and germination

Carrington (1997) found that germination depends on seeds accumulated in a persistent seed bank to maintain populations between disturbances.

Pollination

Pollen is required for fruit and seed development. It is completely cross-incompatible with other Nuttallanthus species due to the amount of genetic divergence between species and isolation. [1]

Conservation and management

Cultivation and restoration

Photo Gallery

References and notes

  1. Jump up to: 1.0 1.1 1.2 1.3 1.4 Phillip, T. C. and W. J. Elisens (2006). "Genetic Variation and Reproductive System among North American Species of Nuttallanthus (Plantaginaceae)." American Journal of Botany 93(4): 582-591.
  2. Jump up [[1]]Accessed: January 20, 2016
  3. Jump up to: 3.0 3.1 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: February 2016. Collectors: Loran C. Anderson, Robert K. Godfrey, R. Kral, and Helen Roth. States and Counties: Florida: Franklin, Gadsden, Leon, Marion, and Wakulla.
  4. Jump up Carrington, M. E. (1997). "Soil Seed Bank Structure and Composition in Florida Sand Pine Scrub." American Midland Naturalist 137(1): 39-47.