Biology:Stylisma humistrata

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Short description: Species of flowering plant


Stylisma humistrata
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Convolvulaceae
Genus: Stylisma
Species:
S. humistrata
Binomial name
Stylisma humistrata
(Walter) Chapm.

Stylisma humistrata, also referred to as southern dawnflower, is a species of perennial forb found in North America.[1]

Description

S. humistra is a member of the morning glory family (Convolvulaceae) that may reach a length of 0.5 to 2 meters (approximately 1.64 to 6.56 feet). Due to the nature of its growth patterns, older individuals often form clumps or mats.[2]

The leaves are oblong-elliptic to oblong-lanceolate, ranging in length from 2.5 to 8 centimeters and in width from 1.2 to 3 centimeters.[3] They are subcordate and range from sparsely pubescent to pilose, with stellate or simple trichomes.[2]

Inflorescence occurs from June through September.[4] The corolla is white in color, ranging from 1.5 to 20 millimeters in length.[2]

Distribution and habitat

Within the United States S. humistra is primarily found within the southeast region, its range stretching from Virginia south to Florida and westward to Texas.[5]

It has been observed in habitats such as in sandy barrens, dry pinelands and hammocks, and along coastal dunes.[3][6] This species does not require light for germination.[7]

References

  1. Weakley, Alan S. (2015). Flora of the Southern and Mid-Atlantic States. University of North Carolina at Chapel Hill. 
  2. 2.0 2.1 2.2 Radford, Albert E.; Ahles, Harry E.; Bell, C. Ritchie (21 December 1968). Manual of the Vascular Flora of the Carolinas. The University of North Carolina Press. ISBN 978-0807810873. 
  3. 3.0 3.1 "Stylisma humistrata in Flora of North America @ efloras.org". http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250131344. 
  4. "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". https://www.wildflower.org/plants/result.php?id_plant=STHU2. 
  5. "USDA Plants Database". https://plants.usda.gov/plant-profile/STHU2. 
  6. "Stylisma humistrata (Southern Dawnflower) - FSUS" (in en). https://fsus.ncbg.unc.edu/main.php?pg=show-taxon.php&plantname=Stylisma+humistrata. 
  7. Jayasuriya, K. M.G.Gehan; Baskin, Jerry M.; Baskin, Carol C. (December 2008). "Dormancy, germination requirements and storage behaviour of seeds of Convolvulaceae (Solanales) and evolutionary considerations". Seed Science Research 18 (4): 223–237. doi:10.1017/S0960258508094750. Bibcode2008SeeSR..18..223J. 

Wikidata ☰ Q15487230 entry