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 >

山东茜草Rubia truppeliana

时间:2013-11-08 13:07来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):山东茜草 学名( Scientific Name ): Rubia truppeliana Loes. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): 科属( Family Genus ): 茜草科(Rubiaceae)茜草属 形态特征( Desc
中文名(Chinese Name):山东茜草
学名(Scientific Name):Rubia truppeliana Loes.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):茜草科(Rubiaceae)茜草属
形态特征(Description):草本,长达2米,匍匐或缠绕。茎分枝,四棱形,干时有纵沟纹,被倒生皮刺,径达2.5毫米,节间长达11厘米。叶6或8片轮生,很少4片轮生,叶片膜质或近纸质,披针形、狭卵状披针形至线状披针形,长2-3.5厘米,宽0.4-0.6厘米,顶端短尖或短渐尖,基部楔形或短尖,边缘有皮刺,下面主脉上有皮刺;基出脉3条,侧生的一对不很明显;叶柄长10-35毫米,或在小枝上部的短,有小皮刺。花序圆锥状顶生,单生,有明显的或长的总梗,总梗和轴均有倒生皮刺;苞片披针形或线状披针形,长达3毫米,花梗当开花时长达4毫米,通常较短;萼管球形;花冠辐状,冠管长约0.4毫米,裂片卵状三角形,长约2毫米,顶端近渐尖,有3脉;雄蕊长约为花瓣之半,花药与分离花丝的部分近等长;花柱2,极短,柱头头状。果未见。花期7-8月。
分布(Distribution):我国特有,产山东,生于低海拔的林中或灌丛。
用途(Use):
引自中国植物志英文版:FOC Vol. 19 Page 305, 306, 307, 315, 318, 319  
Rubia truppeliana Loesener, Beih. Bot. Centralbl., Abt. 2. 37: 183. 1920.
山东茜草 shan dong qian cao | Rubiaceae  | Rubia
Herbs, perennial, sprawling or twining, to 2 m; stems branched, quadrangular, glabrous or sparsely puberulent, retrorsely aculeolate on angles, sometimes sulcate-striate. Leaves in whorls of up to 6 or 8; petiole 6-35 mm, aculeolate; blade drying dark green, subleathery, oblanceolate, broadest toward base, 20-35 × 4-6 mm, scaberulous to retrorsely aculeolate on margins and vein on lower or on both sides, base cuneate to acute, apex acute or shortly acuminate; principal vein 1, 2 lateral veins weaker and hardly reaching half of leaf length. Inflorescences thyrsoid, with terminal and axillary congested to subcapitate cymes; axes aculeolate; bracts lanceolate or linear-lanceolate, 0.5-3 mm; peduncles 10-40 mm; pedicels 0.5-4 mm. Ovary ca. 0.8 mm, smooth. Corolla rotate, glabrous, color not recorded; fused basal part ca. 0.4 mm; lobes ovate-triangular, ca. 2 mm, acuminate. Mericarp berry not seen. Fl. Jul-Aug.
● Forests, thickets; 100-300 m. Shandong.
This local species is certainly close to the newly described Rubia pseudogalium from the Gaoligong Shan region of Yunnan but clearly separable (see there). In habit both are quite similar to Galium. In spite of their very narrow leaves and only slightly palmate veins, this R. truppeliana group probably should be placed into R. sect. Oligoneura.
 
 
(责任编辑:徐晔春)
顶一下
(1)
100%
踩一下
(0)
0%
------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