散枝猪毛菜查看源代码讨论查看历史
散枝猪毛菜 |
中文学名:散枝猪毛菜 拉丁学名:Salsola brachiata Pall 界:植物界 门:被子植物门 Angiospermae 纲:双子叶植物纲 Dicotyledoneae 亚 纲:原始花被亚纲 Archichlamydeae 目:中央种子目 Centrospermae 科:藜科 Chenopodiaceae 亚 科:螺胚亚科 Spirolobeae 族:猪毛菜族 Salsoleae 属:猪毛菜属 Salsola 蒙古也有。 |
枝猪毛菜(学名:Salsola brachiata),为藜科猪毛菜属下的一个植物种。 [1]
散枝猪毛菜形态特征
散枝猪毛菜,一年生草本,高10-30厘米;茎直立,自基部分枝;枝对生,有时上部的枝为互生,枝条伸展,细而坚硬,密生短柔毛及稀疏的、有关节而直立的长毛。
叶对生,叶片半圆柱状,长1.5-2厘米,宽2-2.5毫米,密生短柔毛及稀疏的长毛,顶端有小短尖,基部稍扩展,不下延。
花序穗状,生于枝条的上部;苞片叶状,基部扩展,长于小苞片;小苞片宽披针形,顶端尖,基部有宽的膜质边缘,苞片及小苞片均密生短柔毛及稀疏的长毛;花被片狭披针形,密生短柔毛,边缘膜质,果时变硬,自背面中下部生翅;翅3个为肾形,膜质,黄褐色或紫褐色,有多数细而密集的脉,2个较小,倒卵形,花被果时(包括翅)直径10-13毫米;花被片在翅以上部分,狭披针形,近革质,密生短柔毛,向中央聚集形成细长的圆锥体;花药附属物匙状;花柱极短;柱头钻状,长为花柱的7-8倍。
种子直立。花期7-8月,果期9-10月。
Herbs annual, 10-30 cm tall. Stem erect, branched from base; branches opposite, sometimes upper ones alternate; branchlets spreading, thin, hard, densely pubescent mixed with sparse, long, jointed hairs. Leaves opposite, semiterete, 1.5-2 cm × 2-2.5 mm, densely pubescent mixed with sparse, long hairs, base slightly expanded, not decurrent, apex mucronate. Inflorescence spikelike; bracts leaflike, longer than bractlets, base expanded; bractlets broadly lanceolate, densely pubescent mixed with sparse, long hairs, margin broadly membranous at base, apex acute. Perianth (including wings) 10-13 mm in diam. in fruit; segments narrowly lanceolate, hardened in fruit, abaxially winged from proximal middle part, densely pubescent, margin membranous; portion of segment above wing connivent with others into a long, thin cone, narrowly lanceolate, subleathery, densely pubescent; 3 wings yellow-brown or purple-brown, reniform; other 2 wings obovate, smaller. Anther appendage cochleate. Style very short; stigmas subulate, 7-8 × as long as style. Seed vertical. Fl. Jul-Aug, fr. Sep-Oct.
散枝猪毛菜生长环境
物种生于戈壁滩,山麓及山沟。
散枝猪毛菜分布范围
物种产自新疆北部。苏联、蒙古也有。 (资料来源:中国植物志第25(2)卷 )