兰考泡桐Paulownia elongata

中文名(Chinese Name):兰考泡桐
学名(Scientific Name):Paulownia elongata S. Y. Hu
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):玄参科(Scrophulariaceae)泡桐属
形态特征(Description):乔木高达10米以上,树冠宽圆锥形,全体具星状绒毛;小枝褐色,有凸起的皮孔。叶片通常卵状心脏形,有时具不规则的角,长达34厘米,顶端渐狭长而锐头,基部心脏形或近圆形,上面毛不久脱落,下面密被无柄的树枝状毛。花序枝的侧枝不发达,故花序金字塔形或狭圆锥形,长约30厘米,小聚伞花序的总花梗长8-20毫米,几与花梗等长,有花3-5朵,稀有单花;萼倒圆锥形,长16-20毫米,基部渐狭,分裂至1/3左右成5枚卵状三角形的齿,管部的毛易脱落;花冠漏斗状钟形,紫色至粉白色,长7-9.5厘米,管在基部以上稍弓曲,外面有腺毛和星状毛,内面无毛而有紫色细小斑点,檐部略作2唇形,直径4-5厘米;雄蕊长达25毫米;子房和花柱有腺,花柱长30-35毫米。蒴果卵形,稀卵状椭圆形,长3.5-5厘米,有星状绒毛,宿萼碟状,顶端具长4-5毫米的喙,果皮厚1-2.5毫米;种子连翅长约4-5毫米。花期4-5月,果期秋季。
分布(Distribution):分布于河北、河南、山西、陕西、山东、湖北、安徽、江苏,多数栽培,河南有野生。
用途(Use):
引自中国植物志英文版:FOC Vol. 18 Page 9      
Paulownia elongata S. Y. Hu, Quart. J. Taiwan Mus. 12: 41. 1959.
兰考泡桐 lan kao pao tong| Scrophulariaceae  | Paulownia
Trees, to more than 10 m tall; crown broadly conical; many parts stellate tomentose. Young branches brown, with convex lenticels. Leaf blade often ovate-cordate, to 34 cm, abaxially densely sessile dendroid hairy, adaxially glabrescent, base cordate to subrounded, margin usually entire, sometimes irregularly angled or lobed, apex gradually attenuate and acute. Thyrses pyramidal to narrowly conical, ca. 30 cm; cymes 3-5-flowered; peduncle 0.8-2 cm, almost as long as pedicels. Calyx obconical 1.6-2 cm; tube glabrescent; lobes 5, to 1/3 of calyx length. Corolla purple to pinkish white, funnelform-campanulate, 7-9.5 X 4-5 cm, slightly curved, ridged ventrally, outside glandular and stellate hairy, inside glabrous and purple spotted; limb 4-5 cm in diam. Stamens to 2.5 cm. Ovary and style glandular; style 3-3.5 cm. Capsule ovoid, rarely ovoid-ellipsoid, 3.5-5 cm, stellate tomentose; persistent calyx disc-shaped; beak 4-5 mm; pericarp 1-2.5 mm. Seeds 4-5 mm including wing. Fl. Apr-May, fr. autumn.
* Wild or cultivated; low elevations. Anhui, Hebei, Henan, Hubei, Jiangsu, Shaanxi, Shandong, Shanxi.
 
兰考泡桐Paulownia elongata

兰考泡桐Paulownia elongata

兰考泡桐Paulownia elongata(责任编辑:徐晔春)

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