Rhodotypos scandens

(Thunberg) Makino

Bot. Mag. (Tokyo) 27: 126. 1913.

IllustratedIntroduced
Basionym: Corchorus scandens Thunberg Trans. Linn. Soc. 2: 335. 1794
Synonyms: Kerria tetrapetala Siebold Rhodotypos kerrioides Siebold & Zuccarini R. tetrapetala (Siebold) Makino
Treatment appears in FNA Volume 9. Treatment on page 387.

Stems reddish-brown. Leaves: stipules 2–3.5 mm, membranous, margins strongly sericeous; petiole 3–10 mm; blade weakly bicolored, narrowly to broadly ovate, 4.5–7.5 (–10) × 2–4 (–6.5) cm, base rounded to broadly cuneate, plicate between impressed veins, apex acuminate, abaxial surface more strongly sericeous, hairs 0.1–0.2 mm. Pedicels 6–13 mm (to 30 mm and expanding in fruit). Flowers: epicalyx bractlets linear-lanceolate, leafy, 2.5–5 × 1 mm; sepals 8–15 (–18) mm, thickened basally, distally leafy, fimbriate-serrate, acuminate, sericeous-strigose; petals spreading, 17–22 mm, margins entire-erose; stamens in several series mostly at sepal bases, rarely onto torus, filaments white, 4–6 mm, anthers yellow, 0.5–0.7 mm; torus 2–2.5 mm, interior densely sericeous-strigose, exterior glabrous; styles linear. 2n = 18.


Phenology: Flowering Apr–May; fruiting Jun–Sep.
Habitat: Mesic disturbed woods and thickets, especially in suburban areas
Elevation: 0–300 m

Distribution

V9 646-distribution-map.jpg

Introduced; Ont., Ala., Conn., Del., D.C., Ga., Ill., Ind., Kans., Ky., Mass., Mich., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Pa., S.C., Vt., Va., W.Va., Wis., Asia (China), Asia (Japan), Asia (Korea)

Discussion

Rhodotypos scandens is expected elsewhere in North America. It is widely cultivated in Japan and infrequently in North America and Europe.

Selected References

None.

Lower Taxa

None.
... more about "Rhodotypos scandens"
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
James Henrickson +
(Thunberg) Makino +
compound +  and simple +
opposite +  and alternate +
rounded +  and broadly cuneate +
Corchorus scandens +
7.5 cm75 mm <br />0.075 m <br /> (10 cm100 mm <br />0.1 m <br />) +
4 cm40 mm <br />0.04 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (10 cm100 mm <br />0.1 m <br />) +
2cm +  and 4cm +
free +  and distinct +
Ont. +, Ala. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, Mass. +, Mich. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, S.C. +, Vt. +, Va. +, W.Va. +, Wis. +, Asia (China) +, Asia (Japan) +  and Asia (Korea) +
not +  and aggregated +
0–300 m +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
linear-lanceolate +
1 cm10 mm <br />0.01 m <br /> (?) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
compressed +  and ovoid-globose +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
not +  and aggregated +
not +  and aggregated +
Mesic disturbed woods and thickets, especially in suburban areas +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
opposite +  and alternate +
deciduous +
unarmed +  and branched +
serrulate +  and entire +
toothed +, unlobed +  and lobed +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and marginal +
0.6 cm6 mm <br />0.006 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
1.7 cm17 mm <br />0.017 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering Apr–May +  and fruiting Jun–Sep. +
adnate +, free +, connate +  and distinct +
Bot. Mag. (Tokyo) +
not arillate +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
persistent +
free +  and distinct +
reflexed +  and spreading +
sericeous-strigose +
acuminate +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
tubelike +
Illustrated +  and Introduced +
free +  and distinct +
branched +  and simple +
reddish-brown +
5 +  and 20 +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
membranous +
persistent +
distinct +
not elongate +
Kerria tetrapetala +, Rhodotypos kerrioides +  and R. tetrapetala +
Rhodotypos scandens +
Rhodotypos +
species +
stipitate-glandular +
inconspicuous +
sericeous-strigose +
4-toothed +, crenulate +  and dome--shaped +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +