[Wikipedia] Taxonomy: D. minthornii was described as Hemizonia minthornii by Willis Linn Jepson in his 1925 Manual of the Flowering Plants of California.[8] Its botanical name honors botanist Theodore Wilson Minthorn and his sister Maud Minthorn who collected plants in Southern California in the beginning of the 20th century. (link added by Mary Ann Machi)
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 03/28/2025).