Sorbaria kirilowii

(Regel) Maximowicz

Trudy Imp. S.-Petersburgsk. Bot. Sada 6: 225. 1879.

Common names: Giant false spiraea
Introduced
Basionym: Spiraea kirilowii Regel in E. Regel and H. S. T. Tiling, Fl. Ajan., 81. 1858
Synonyms: Sorbaria arborea C. K. Schneider
Treatment appears in FNA Volume 9. Treatment on page 397. Mentioned on page 396.

Plants 15–70 dm. Leaves: blade 14–35 × 8–17 cm; leaflets 13–21, oblong-ovate, (30–) 60–90 (–130) × (10–) 13–30 (–40) mm, abaxial surface with simple hairs to 0.8 mm in vein-axils, sometimes also stipitate-stellate, adaxial glabrous. Inflorescences (7–) 20–30 (–42) × (5–) 10–17 (–33) cm. Pedicels (and axes) usually glabrous. Flowers 5–9 mm diam. (anther tip to tip); hypanthium glabrous; sepals ovate-rounded, margins entire; petals orbicular, 1.9–3.5 mm diam.; stamens 20–25, those opposite petals 1–1.5 mm, others 1.9–2.5 (–4.5) mm; ovaries glabrous or nearly so, styles 1–1.2 mm. Follicles 3–5.3 mm, glabrous or nearly so.


Phenology: Flowering Jun–Jul.
Habitat: Roadsides
Elevation: 10–400 m

Distribution

V9 665-distribution-map.jpg

Introduced; Wash., Asia (China), Asia (Japan), Asia (Korea), Asia (Tibet), also in Europe

Discussion

Sorbaria kirilowii is cultivated in the United States and Europe, persisting and becoming naturalized in northwestern Washington.

Selected References

None.

Lower Taxa

None.
... more about "Sorbaria kirilowii"
James Henrickson +
(Regel) Maximowicz +
compound +  and simple +
opposite +  and alternate +
short-clawed +
Spiraea kirilowii +
14 cm140 mm <br />0.14 m <br /> (35 cm350 mm <br />0.35 m <br />) +
oblong-ovate +
14 cm140 mm <br />0.14 m <br /> (35 cm350 mm <br />0.35 m <br />) +
8cm +  and 17cm +
pubescent +  and glabrous +
free +, distinct +  and connate +
Giant false spiraea +
Wash. +, Asia (China) +, Asia (Japan) +, Asia (Korea) +, Asia (Tibet) +  and also in Europe +
not +  and aggregated +
10–400 m +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
unisexual +  and bisexual +
nearly +  and glabrous +
0.3 cm3 mm <br />0.003 m <br /> (0.53 cm5.3 mm <br />0.0053 m <br />) +
pubescent +  and glabrous +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
not +  and aggregated +
Roadsides +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
15-1100+-flowered +
30 cm300 mm <br />0.3 m <br /> (42 cm420 mm <br />0.42 m <br />) +
17 cm170 mm <br />0.17 m <br /> (33 cm330 mm <br />0.33 m <br />) +
20cm +  and 30cm +
10cm +  and 17cm +
crassinucellate +
opposite +  and alternate +
deciduous +
9 cm90 mm <br />0.09 m <br /> (13 cm130 mm <br />0.13 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
6 cm60 mm <br />0.06 m <br /> (9 cm90 mm <br />0.09 m <br />) +
oblong-ovate +
1.3 cm13 mm <br />0.013 m <br /> (?) +  and 3 cm30 mm <br />0.03 m <br /> (?) +
toothed +, unlobed +  and lobed +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
inferior +  and superior +
nearly +  and glabrous +
biseriate +  and clustered +
collateral +  and basal +
4 +  and 8 +
pubescent +  and glabrous +
0 (?) +  and 4 (?) +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
free +  and distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Flowering Jun–Jul. +
adnate +, free +, connate +  and distinct +
Trudy Imp. S.-Petersburgsk. Bot. Sada +
not arillate +
fusiform +
persistent +
distinct +  and connate +
pubescent +  and glabrous +
ovate-rounded +
Introduced +
free +  and distinct +
branched +  and simple +
1 +  and 10 +
not persistent +
distinct +
not elongate +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
hairy +  and glabrous +
Sorbaria arborea +
Sorbaria kirilowii +
Sorbaria +
species +
0 +  and 6 +
inconspicuous +
rhizomatous +  and simple +
stellate +  and uniseriate +
stipitate-glandular +
erect +  and spreading +