Thelesperma nuecense

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Thelesperma nuecense

Apparently Secure  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Thelesperma
Species:
T. nuecense
Binomial name
Thelesperma nuecense
B.L.Turner

Thelesperma nuecense, the Rio Grande greenthread,[2] is an annual species of flowering plant in the aster family. It is native to Texas.

Description[edit]

It is an annual herb that grows up to 3 feet tall.[3] The cauline leaves are "scattered over proximal 1/4–1/2(–3/4) of plant heights".[4] It flowers from March to July. There are 8 ray florets per flower head; the laminae are yellow, suffused with a red-brown spot or band. The disc corollas are red-brown, with throats usually shorter than the lobes. The cypselae are 5 to 5.5 mm long; the pappi are 0.5 to 1 mm long.[4]

Distribution and habitat[edit]

It grows in Texas at elevations of 0 to 200 meters from sea level on "disturbed sites on sands".[4][5]

References[edit]

  1. ^ "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 2023-07-12.
  2. ^ "USDA Plants Database". plants.usda.gov. Retrieved 2023-07-12.
  3. ^ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2023-07-12.
  4. ^ a b c "Thelesperma nuecense - FNA". floranorthamerica.org. Retrieved 2023-07-12.
  5. ^ "Thelesperma nuecense B.L.Turner | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2023-07-12.