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FNA | Family List | FNA Vol. 6 | Malvaceae | Sphaeralcea

17. Sphaeralcea moorei (S. L. Welsh) N. D. Atwood & S. L. Welsh, Novon. 12: 163. 2002.

Sphaeralcea grossuliariifolia (Hooker & Arnott) Rydberg var. moorei S. L. Welsh, Great Basin Naturalist 40: 35. 1980

Plants perennial. Stems erect, red-purple basally, 3–8 dm, stellate-canescent. Leaf blades green, ovate to deltate, 3- or 5-lobed, digitate, spatulate, secondary divisions of lobes frequent, basal lobes frequently not divided, 1–4(–7) cm, not rugose, base truncate or cuneate, margins entire, surfaces gray-green stellate-canescent. Inflorescences paniculate, open, 1–few-flowered, very few-leaved, tip not leafy; involucellar bractlets green to red-purple. Flowers: sepals 4.5–8.5 mm; petals red-orange, 8–15 mm; anthers yellow. Schizocarps hemispheric; mericarps 10(–14), 3–5 × 2 mm, chartaceous, nonreticulate dehiscent part 50% of height, tip rounded to acute, indehiscent part wider than dehiscent part, sides reticulate. Seeds 2 per mericarp, brown to black, glabrous or sparsely pubescent.

Flowering May–July. Sandy soil, riparian; 800–1900 m; Utah.

Sphaeralcea moorei intergrades with S. grossulariifolia and has similarities to S. parvifolia. See under 11. S. grossulariifolia for discussion.


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