肥叶碱蓬
肥叶碱蓬 |
中文学名:肥叶碱蓬 二名法:Suaeda kossinskyi 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:中央种子目 科:藜科 亚 科:螺胚亚科 族:碱蓬族 属:碱蓬属 亚 属:无脉组 |
肥叶碱蓬,英文名:Suaeda kosinskyi Iljin (阿勒泰地区),藜科碱蓬属,一年生草本,高10-20厘米。约100余种。 [1]
目录
肥叶碱蓬形态特征
肥叶碱蓬,西伯利亚白刺,无叶假。
一年生草本,高10-20厘米。根圆柱状,黑褐色。茎直立,多由基部分枝;枝平卧或上升,圆柱形,上部稍有棱,黄白色,无毛。
叶极肥厚,生在茎和主枝上的条形,半圆柱状,长可达1.5厘米,宽约2毫米,生在侧枝上的倒狭卵形至倒卵形,略扁,长3-4毫米,宽2-3毫米,先端钝圆,基部圆形至宽楔形,几无柄。花两性兼有雌性,通常2-5朵团集,生于叶腋及腋生的无叶短枝上,短枝通常2叉分;花被顶基扁,5裂;裂片近三角形,果时基部向四周延伸生出形状不规则的横翅;雄蕊1-2个发育,花丝扁平,不伸出花被外,花药卵状矩圆形,长约0.3毫米;柱头2,细小,叉开,花柱不明显。
种子横生,圆形,扁平,或为双凸镜形,直径0.8-1.2毫米,种皮膜质或薄壳质,壳质种皮的种子红褐色至黑色,有光泽,表面具不清晰的浅网纹。花果期8-10月。
Herbs annual, 10-20 cm tall. Root black-brown, terete. Stem erect, mostly branched from base; branches prostrate or ascending, yellow-white, terete, somewhat ribbed above, glabrous. Leaves subsessile, fleshy, base broadly cuneate, apex rounded; leaves on stem and main branches linear, semiterete, to 1.5 cm × 2 mm; leaves on lateral branches narrowly ovate to obovate, slightly compressed, 3-4 × 2-3 mm. Glomerules borne in leaf axils and on axillary, dwarf, usually bifurcate, leafless branchlets, usually 2-5-flowered. Flowers bisexual and female. Perianth depressed, 5-parted; segments subtriangular, base extended into an irregular, transverse wing in fruit. Stamens 1 or 2 developed; filaments not exserted, flattened filiform; anthers ovate-oblong, ca. 0.3 mm. Style obscure; stigmas 2, divaricate, minute. Seed horizontal, depressed globose or lenticular, 0.8-1.2 mm in diam.; testa red-brown to black, sublustrous, membranous or thinly leathery, obscurely reticular lineate. Fl. and fr. Aug-Oct.
肥叶碱蓬生长环境
生于潮湿的强盐碱化土壤。