织梦CMS - 轻松建站从此开始!

花卉图片网

当前位置: 主页 > 野生花卉 >

多舌飞蓬Erigeron multiradiatus

时间:2013-07-23 14:24来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):多舌飞蓬 学名( Scientific Name ): Erigeron multiradiatus (Lindl. ex DC.) Benth. ex C.B. Clarke 英文名( English Common Name ): Himalayan fleabane 别名( Chinese Common Name ): 加舌飞蓬 异名( Synonym ): A






中文名(Chinese Name):多舌飞蓬
学名(Scientific Name):Erigeron multiradiatus (Lindl. ex DC.) Benth. ex C.B. Clarke
英文名(English Common Name):Himalayan fleabane
别名(Chinese Common Name):加舌飞蓬
异名(Synonym):Aster roylei Onno  Stenactis multiradiatus Lindl. ex DC.  Erigeron multiradiatus var. platyphyllus Franch. ex Lév.  Erigeron radiosus Spreng. ex DC.  Stenactis multiradiata Lindl.
科属(Family & Genus):菊科(Compositae)飞蓬属
形态特征(Description):多年生草本,根状茎木质,较粗壮,径3-6毫米,斜升或横卧,有或无分枝,具纤维状根,颈部被纤维状残叶的基部。茎数个或单生,高20-60厘米,基部径2-4毫米,直立,有分枝,或有时不分枝,绿色,基部或全部紫色,具条纹,被较疏的,上部被较密的短硬毛,杂有贴生短毛和头状具柄腺毛,节间长2-4厘米。基部叶密集,莲座状,在花期常枯萎,长圆状倒披针形或倒披针形,长5-15厘米,宽0.7-1.5毫米,全缘或具数个齿,顶端尖或稍钝,基部渐狭基部常紫色的长柄,具3-5脉,两面被疏短硬毛和头状具柄腺毛,下部叶与基部叶同形,具短柄,中部和上部叶无柄,卵状披针形或长圆状披针形,或少有狭披针形,长4-6厘米,宽0.6-2厘米,全缘或少有疏齿,顶端尖或渐尖,基部扩大,半抱茎,最上部叶极小,线形或线状披针形,长1-2厘米,宽0.1-0.2厘米,顶端渐尖。头状花序径3-4厘米,或更大,通常2至数个伞房状排列,或单生于茎枝的顶端;总苞半球形,长8-10毫米,宽15-20厘米,总苞片3层,显明超出花盘,线状披针形,宽约1毫米,顶端渐尖,绿色,上端或全部紫色,外层较短,背面被疏长节毛和密的头状具柄腺毛。外围的雌花舌状,3层,长约为总苞的二倍,舌片开展,紫色,长14-17毫米,宽0.6-1毫米,管部长1.5-2毫米,上部被疏微毛,干时不卷成管,顶端全缘;中央的两性花管状,黄色,长4-4.5毫米,管部1-1.5毫米,檐部窄漏斗状,上部被疏微毛,裂片短三角形,无毛;花药伸出花冠;瘦果长圆形,长2毫米,宽约1毫米,扁压,背面具1肋,被疏短毛;冠毛2层,污白色或淡褐色,刚毛状,外层极短,内层长4毫米。花期7-9月。
分布(Distribution):产西藏、云南、四川等地,生于海拔2500-4600米的草地、山坡或林缘。东南亚也有。
用途(Use):
引自中国植物志英文版FOC Vol. 20-21 Page 635, 638, 639
Erigeron multiradiatus (Lindley ex Candolle) Bentham ex C. B. Clarke, Compos. Ind. 56. 1876.
多舌飞蓬 duo she fei peng| Asteraceae  | Erigeron
Stenactis multiradiata Lindley ex Candolle, Prodr. 5: 299. 1836; Aster inuloides D. Don; A. roylei Onno; Erigeron multiradiatus var. glabrescens Y. Ling & Y. L. Chen; E. multiradiatus var. ovatifolius Y. Ling & Y. L. Chen; E. multiradiatus var. salicifolius C. C. Chang ex Y. Ling & Y. L. Chen.
Herbs, perennial, 20-60 cm tall; rhizome woody. Stems several or single, 2-4 mm in diam. at base, erect, ascending or procumbent, branched or sometimes simple, purplish at base, rarely green, sparsely or ± densely hirsute, scabridulous, base sometimes glabrate, long-stipitate glandular. Leaves: basal rosulate, often withered at anthesis, long winged petiolate, blade oblong-oblanceolate to oblanceolate, sometimes ovate to ovate-elliptic, (4-)5-15 × 0.6-1.5(-2.6) cm, surfaces scabrous or rarely sparsely long hairy, or rarely glabrate or glabrous, glandular, 3-5-veined, base attenuate, sometimes broad, margin entire or remotely serrate, hirsute-ciliate, apex acute or obtuse, rarely rounded or acuminate; lower cauline similar, shortly petiolate, mid sessile, blade ovate-lanceolate to oblong-lanceolate or lanceolate, rarely narrowly lanceolate, 3-6(-8.5) × 0.6-2.2 cm, base subclasping, margin entire or remotely serrate, apex acute or acuminate, upper sessile, reduced, linear or linear-lanceolate, 1-2 cm, apex acuminate. Capitula usually 2 to several in corymbiform synflorescences, or solitary, 3-4 cm in diam. or more. Involucre hemispheric, 8-10 × 15-20 mm; phyllaries 3-seriate, green, apex or entire surface purplish, linear-lanceolate, distinctly exceeding disk florets, 0.6-1 mm wide, abaxially sparsely to densely hirsute, densely stipitate glandular apically, leaflike (outer and inner), margin stipitate glandular, apex acuminate, outer 5-5.4 mm, innermost 6.8-7.6 mm, membranous, margin not or narrowly scarious and hyaline, long acuminate. Ray florets lilac or lavender to purple, spreading, 8.8-17 × 0.4-1 mm, 2 × as long as involucre, tube 1.5-2 mm, sparsely hairy in upper part to lamina base, lamina ± flat when dry; disk florets yellow, 2.9-4.5 mm, tube 0.7-1.5 mm, sparsely hairy above to limb base, limb narrowly funnelform, 2.1-2.3 mm, lobes ovate, 0.4-0.6 mm, glabrous. Achenes oblong to lanceolate, flattened, ca. 2 mm, sparsely strigose, 1-veined abaxially. Pappus 2-seriate, dirty white or yellowish to brownish, outer bristles short, inner ca. 4 mm. Fl. May-Sep.
Alpine or subalpine meadows, slopes, forest margins, forests, open hillsides; 2300-4600 m. Sichuan, Xizang, Yunnan [Afghanistan, Bhutan, India, Kashmir, Nepal; SW Asia (Iran)].
In addition to the typical variety, three varieties have been recognized in this species. Erigeron multiradiatus var. ovatifolius (SW Sichuan: Muli) is characterized by ovate to ovate-elliptic leaves with a rounded-obtuse, mucronate apex. Erigeron multiradiatus var. salicifolius (NW Yunnan: Weixi; ca. 2900 m, in forests) has thin, narrowly lanceolate, sparsely long hairy leaves with an attenuate, somewhat clasping base and an acute or acuminate apex. These may represent extremes of leaf variation of the species or distinct forms or even the result of phenotypic plasticity in the case of E. multiradiatus var. salicifolius, which is found in forests; a morphometric study of the complex would be needed to address this issue. Erigeron multiradiatus var. glabrescens, found in alpine meadows of NW Yunnan (Zhongdian; ca. 3200 m), has glabrate or glabrous, entire leaves; other reported features appear to fall within the range of variation of the species. (责任编辑:徐晔春)
织梦二维码生成器
顶一下
(0)
0%
踩一下
(1)
100%
------分隔线----------------------------
发表评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
用户名: 验证码:点击我更换图片
栏目列表
推荐内容