Hymenopappus carrizoanus explained

Hymenopappus carrizoanus, the Carrizo Sands woollywhite, is a North American species of flowering plant in the daisy family. It has been found only in Texas, on the Carrizo Sands of the central part of the state.^[1]

Hymenopappus carrizoanus is a biennial herb up to 150 cm (5 feet) tall. It produces 45–60 flower heads per stem, each head with 20–40 white disc flowers but no ray flowers.^{[2] [3]}

Notes and References

1. http://bonap.net/MapGallery/County/Hymenopappus%20carrizoanus.png Biota of North America Program 2014 county distribution map
2. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066974 Flora of North America, Hymenopappus carrizoanus B.L. Turner
3. https://www.biodiversitylibrary.org/page/13065934#page/9/mode/1up Turner, Billie Lee. 1989. Phytologia 67(4): 293–296