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FNA | Family List | FNA Vol. 4 | Nyctaginaceae | Allionia

1b. Allionia incarnata Linnaeus var. villosa (Standley) Munz, Man. S. Calif. Bot. 598. 1935.

Wedelia incarnata (Linnaeus) Kuntze subsp. villosa Standley, Contr. U.S. Natl. Herb. 12: 333. 1909

Inflorescences: peduncle 15-25(-30) mm, usually glandular-puberulent, densely spreading villous; flower cluster 20-25 mm diam. in anthesis; abaxial perianth limb 10-15 mm. Fruits 4-6 mm.

Flowering early spring-late fall [year-round]. Open arid areas, usually on sandy or gravelly soils, 100-1200 m; Ariz., Calif., Nev., N.Mex., Utah; Mexico (Chihuahua, Sonora).

B. L. Turner (1994) distinguished three varieties based primarily on perianth and fruit size. The robust, large-flowered var. villosa, intergradient with var. incarnata, is conspicuous in the field in its extreme, but difficult to distinguish on many herbarium specimens if geographic origin is unknown. This large-flowered variety is occasionally immediately sympatric with small-flowered phases of var. incarnata.


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