Arenaria lanuginosa var. saxosa

(A. Gray) Zarucchi

Sida 21: 753. 2004.

Basionym: Arenaria saxosa A. Gray Smithsonian Contr. Knowl. 5(6): 18. 1853
Synonyms: Arenaria confusa Rydberg Arenaria lanuginosa subsp. saxosa (A. Gray) Maguire Arenaria mearnsii A. Gray Arenaria saxosa var. cinerascens B. L. Robinson Arenaria saxosa var. mearnsii (Wooton & Standley) Kearney & Peebles Sperulastrum lanuginosum subsp. saxosum (A. Gray) W. A. Weber
Treatment appears in FNA Volume 5. Treatment on page 53.
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Stems 1–80+, erect or ascending to procumbent. Inflorescences proliferating, mostly terminal, leafy, 1–80+-flowered cymes. Pedicels erect to ascending (often arcuately so) in fruit, 2–25 mm. Petals 3/4–12/5 times as long as sepals. 2n = 40, 44.

Phenology: Flowering spring–summer.
Habitat: Forests, stream banks
Elevation: 1000-3100 m


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Ariz., Calif., Colo., N.Mex., Tex., Utah, Mexico (Baja California, Chihuahua, Coahuila).


The varietal combination Arenaria lanuginosa var. cinerascens (B. L. Robinson) Shinners, often applied to this taxon, is not correct because the epithet of the earlier autonym A. saxosa var. saxosa has priority.

Selected References


Lower Taxa

Ronald L. Hartman +, Richard K. Rabeler +  and Frederick H. Utech +
(A. Gray) Zarucchi +
Arenaria saxosa +
Ariz. +, Calif. +, Colo. +, N.Mex. +, Tex. +, Utah +, Mexico (Baja California +, Chihuahua +  and Coahuila). +
1000-3100 m +
Forests, stream banks +
Flowering spring–summer. +
Illustrated +
Arenaria confusa +, Arenaria lanuginosa subsp. saxosa +, Arenaria mearnsii +, Arenaria saxosa var. cinerascens +, Arenaria saxosa var. mearnsii +  and Sperulastrum lanuginosum subsp. saxosum +
Arenaria lanuginosa var. saxosa +
Arenaria lanuginosa +
variety +