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Compilation
Obione pusilla

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Syntype of Obione pusilla Torrey, J. 1871 [family CHENOPODIACEAE]
Obione pusilla Torr. [family AMARANTHACEAE]
Lectotype of Obione pusilla Torrey ex S. Watson [family CHENOPODIACEAE]
Syntype of Obione pusilla Torr. ex S. Watson [family CHENOPODIACEAE]
Syntype of Obione pusilla Torrey ex S. Watson [family CHENOPODIACEAE]
Syntype of Obione pusilla Torr. ex S. Watson [family CHENOPODIACEAE]
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Name

Identification
Obione pusilla Torr. ex S. Watson [family CHENOPODIACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Obione pusilla
Common name
  • Dwarf orach, Flora of North America Vol. 4

Flora

Entry for Atriplex pusilla (Torrey) S. Watson [family CHENOPODIACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 4,
Names
Atriplex pusilla (Torrey) S. Watson [family CHENOPODIACEAE], Proc. Amer. Acad. Arts, 9: 110. 1874
Obione pusilla Torrey ex S. Watson [family CHENOPODIACEAE], Botany (Fortieth Parallel), 291. 1871
Treatment Author(s)
Stanley L. Welsh
Information
Herbs, freely branched, 0.5–2.5 dm; branches spreading to erect, typically suffused with red, slender, sparsely scurfy. Leaves alternate except proximally, not especially numerous; blade elliptic to subelliptic or ovate, 2–12 × 3–6 mm, base acute, rounded, or subcordate, margin entire, gray to almost green scurfy. Flowers solitary or paired in axils, staminate near branch ends, calyx 5-cleft. Fruiting bracteoles simulating tiny bracteate leaves, sessile, ovate, compressed, 1–2 × 1 mm, united to apex, abruptly acute to acuminate, entire, faces plane. Seeds brownish, 0.8–1 mm.
Phenology
jun-aug (summer), sep-oct (fall)
Altitude range
1000–2100 m;
Distribution
USA Calif.USA Nev.USA Oreg.
Discussion
Atriplex pusilla is closely similar to, and possibly a near ally of, the geographically disjunct A. parishii complex of the Great Valley of California, which it simulates in all main features. The very tiny fruiting bracteoles, very difficult to discern among the distal bracteate leaves, are characteristic and apparently closely similar only to those of A. parishii var. minuscula. The red stems are almost universal in plants of this species.

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