坚秆火绒草Leontopodium franchetii

中文名(Chinese Name):坚秆火绒草
学名(Scientific Name):Leontopodium franchetii Beauverd
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):菊科Compositae火绒草属Leontopodium
形态特征(Description):多年生草本。根状茎粗壮,近横走,有多数密集簇生的花茎和不育的幼茎,无莲座状叶丛。茎直立,高15-50厘米,不分枝,或砍断的不育茎有分枝,挺直,下部木质,宿存,被黄色短柄的密腺,上部还稍有蛛丝状毛,全部有密生的叶,下部叶在花期凋落。叶直立或稍开展,线形,长约1-3厘米,稀3.5厘米,宽0.1-0.3厘米,边缘极反卷,使全叶呈针形,顶端尖,有明显的尖头,基部等宽或有小耳,被浅色粘质具短柄的密腺毛,下面被较疏的腺毛,除叶脉和叶基部外,还被有密压的白色棉毛;上部叶渐小。苞叶多数,线形,顶端稍钝或近圆形,边缘稍反卷,长约5-10毫米,宽1-2毫米,上面较下面被更厚的白色茸毛,较花序稍长或长二倍,开展成密集的稀稍分散的径约1.5-4厘米的苞叶群。头状花序径3-5毫米,10-30个或更多,密集或稍分散。总苞长约3毫米,被疏棉毛;总苞片2-3层,浅或深褐色,顶端尖,无毛,多少露出毛茸之上。小花异形,有少数雌花,或雌雄异株。花冠长2-3毫米,浅黄色;雄花花冠狭漏斗状;雌花花冠丝状。冠毛白色,基部细,有锯齿;雄花冠毛上部棒锤状膨大,有钝锯齿,雌花冠毛极细,有疏齿。不育的子房无毛,瘦果有短粗毛。花期7-9月。
分布(Distribution):产四川西部(康定、道孚等)及西南部(稻城)、云南西北部(中甸、德钦等)。生于高山干燥草地、石砾坡地和河滩湿地,常成为优势种。海拔3000-5000米。
用途(Use):
引自中国植物志英文版:FOC Vol. 20-21 Page 779, 781, 782     
Leontopodium franchetii Beauverd, Bull. Soc. Bot. Genève. 3: 258. 1911.
坚杆火绒草 jian gan huo rong cao | Asteraceae  | Leontopodium
Herbs, perennial. Rhizome slender, densely with numerous flowering and sterile stems. Stems woody in lower part, yellow glandular hairy and upper part with arachnoid pubescence; internodes 3-5 mm. Leaves densely arranged, linear, 10-35 × 1-3 mm, abaxially with sparse glandular hairs and densely lanate, adaxially densely covered with glandular hairs. Capitula 10-30, 3-5 mm in diam., in dense corymbs; bracteal leaves numerous, linear, 5-10 × 1-2 mm, both surfaces densely lanate. Involucre 2- or 3-seriate, abaxially brown; phyllaries lanceolate, ca. 3 mm, apex brown and acute. Marginal florets female; corolla capillary, 2-3 mm. Disk florets male; corolla light yellow, subtubular, ca. 3.5 mm. Achenes papillose. Pappus of capillary bristles, white. Fl. Jul-Sep, fr. Sep-Oct.
  • Dry grasslands, scree slopes, sandy riverbanks; 3000-4000 m. W Sichuan, NW Yunnan.
 坚秆火绒草Leontopodium franchetii

坚秆火绒草Leontopodium franchetii
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