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FNA | Family List | FNA Vol. 3 | Ranunculaceae | Ranunculus

11b. Ranunculus canus var. ludovicianus (Greene) L. D. Benson, Bull. Torrey Bot. Club. 68: 171. 1941.

Ranunculus ludovicianus Greene, Bull. Calif. Acad. Sci. 2: 58. 1886; R. californicus Bentham var. ludovicianus (Greene) K. C. Davis

Leaf blades: ultimate segments lanceolate to oblong-lanceolate, margins entire or toothed, apex acute or rounded-acute. Flowers: petals 13-17.

Flowering spring-summer (Mar-Aug). Meadows; 1000-2300 m; Calif.

Ranunculus canus var. ludovicianus is endemic to the Transverse Ranges of California. Pending further study, I am reluctantly following L. D. Benson's (1948) placement of this taxon. The plants have the floral characters of R . californicus and have often been included in that species. Indeed, forms of R . californicus from the foothills west of the San Joaquin Valley may also have large achenes with deltate beaks. Those plants differ from R . canus var. ludovicianus only in their ovate leaf segments. Further study of the group is much needed.


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