Erigeron ovinus

Erigeron ovinus is a rare North American species of flowering plant in the daisy family, called the sheep fleabane.[2] It has been found only in the southeastern part of the US state of Nevada (Clark County + Lincoln County).[3]

Erigeron ovinus
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Astereae
Genus:
Erigeron
Species:
E. ovinus
Binomial name
Erigeron ovinus
Cronquist
Synonyms[1]
  • Erigeron caespitosus subsp. anactis S.F.Blake 1922
  • Erigeron caespitosus var. anactis S.F.Blake

Erigeron ovinus is a perennial herb up to 15 centimeters (6 inches) tall, with a large taproot, forming clumps of many individuals close together. Leaves are pinnatifid with long narrow lobes. The plant generally produces one or two flower heads per stem, each head with numerous yellow disc florets but no ray florets. The species grows on ridges and in cracks in rocks in conifer woodlands.[2]

The oldest name for this plant is Erigeron caespitosus subsp. anactis.[4] Conquist in 1947 sought to raise this from subspecies to the level of species, but opted to forgo the common (but not mandatory) practice of using the subspecific epithet as a species epithet. He chose a new epithet instead, ovinus.[5]

References
  1. The Plant List, Erigeron ovinus Cronquist
  2. Flora of North America, Erigeron ovinus Cronquist, 1947. Sheep fleabane
  3. Biota of North America Program 2014 county distribution map
  4. Blake, Sydney Fay 1922. Proceedings of the Biological Society of Washington 35(34): 175 as Erigeron caespitosus subsp. anactis
  5. Cronquist, Arthur John. 1947. Brittonia 6(2): 164


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.