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Rusby's globemallow

Habit Plants perennial.
Stems

erect, gray-green to purple, 3–6 dm, sparsely pubescent.

Leaf

blades light green, sometimes with purple margins, triangular to broadly ovate, pedately divided or 3–5-lobed, 1.5–5 cm, not rugose, base truncate to cordate, margins entire, surfaces sparsely stellate-pubescent.

Inflorescences

paniculate, crowded, few-flowered per node, tip ± leafy;

involucellar bractlets red to purple.

Flowers

sepals sometimes red or purple, 6–15 mm, lobes equaling to 3 times tube length;

petals red-orange, 10–20 mm;

anthers usually red to purple, sometimes yellow.

Seeds

1 or 2 per mericarp, black-gray, glabrous or pubescent.

Schizocarps

truncate-spheric;

mericarps 13, 4.5–6 × 2–2.5 mm, chartaceous, nonreticulate dehiscent part 55–80% of height, tip acute, indehiscent part not wider than dehiscent part.

Sphaeralcea rusbyi

Distribution
from FNA
AZ; CA; UT
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Sepals 6–10 mm, lobes deltate; calyx length ± equaling fruit.
var. rusbyi
1. Sepals 13–15 mm, lobes elongate; calyx length 2 times fruit.
var. eremicola
Source FNA vol. 6, p. 369.
Parent taxa Malvaceae > subfam. Malvoideae > Sphaeralcea
Sibling taxa
S. ambigua, S. angustifolia, S. caespitosa, S. coccinea, S. coulteri, S. digitata, S. emoryi, S. fendleri, S. fumariensis, S. gierischii, S. grossulariifolia, S. hastulata, S. incana, S. laxa, S. leptophylla, S. lindheimeri, S. moorei, S. munroana, S. orcuttii, S. parvifolia, S. pedatifida, S. polychroma, S. procera, S. psoraloides, S. wrightii
Subordinate taxa
S. rusbyi var. eremicola, S. rusbyi var. rusbyi
Name authority A. Gray: Proc. Amer. Acad. Arts 22: 293. (1887)
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