灰綠叉毛蓬檢視原始碼討論檢視歷史
| 灰綠叉毛蓬 |
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中文學名:灰綠叉毛蓬 拉丁學名:Petrosimonia 界:植物界 門:蕨類植物門Pteridophyta 綱:蕨綱Filicopsida 目:真蕨目Eufilicales 科:藜科Chenopodiaceae |
灰綠叉毛蓬，植株高10-20厘米，有毛至近無毛，藍灰綠色。莖直立，多分枝； 枝斜升，通常莖下部的1-3對為對生，其餘為互生。 [1]
灰綠叉毛蓬形態特徵
植株高10-20厘米，有毛至近無毛，藍灰綠色。莖直立，多分枝; 枝斜升，通常莖下部的1-3對為對生，其餘為互生。
葉條形，半圓柱狀或近於圓柱狀，除莖下部少數為對生外其餘為互生，通常長1-4厘米，寬1-1.5毫米，大多稍向外彎曲，先端漸尖，基部稍擴展；枝上部的葉（苞）較短，長0.5-1厘米，顯著外彎或外折。
小苞片舟狀，等長或稍長於花被，先端短漸尖並外彎; 花被片2,透膜質，橢圓或狹卵形，長約2.5毫米，先端急尖或微鈍，背面近先端處及邊緣微有毛，果時稍變硬；雄蕊5，花葯（包括附屬物）長2-2.5毫米，下部約1/3分離; 花葯附屬物長約0.4毫米，先端通常具3個淺裂齒，側緣彼此粘合使花葯聚成傘形；柱頭與花柱近等長。花果期7-9月。
Petrosimonia crassifolia (Pallas) Bunge var. glaucescens Bunge, Mém. Acad. Imp. Sci. Saint Pétersbourg, Ser. 7, 4(11): 56. 1862; Polycnemum glaucum Pallas.
Plants blue-gray, 10-20 cm tall, hairy to subglabrous. Stem erect, much branched; lower branches suberect, usually lower 1-3 pairs opposite; other branches obliquely spreading. Leaves opposite on lower branches, alternate on upper branches, linear, mostly recurved, semiterete or subterete, usually 1-4 cm × 1-1.5 mm, base slightly expanded, apex acuminate. Bracts distinctly recurved or reflexed, 5-10 mm, shorter than leaves, all longer than subtended flower. Bractlets navicular, equaling or slightly longer than perianth, apex shortly acuminate, recurved. Perianth segments 2, elliptic or narrowly ovate, ca. 2.5 mm, membranous, somewhat hardened in fruit, abaxially slightly hairy at margin and near apex, apex subobtuse or acute. Stamens 5; anthers free in proximal ca. 1/3, 2-2.5 mm including appendage; appendage ca. 0.4 mm, apex usually 3-lobed, appendages attached by lateral margins making joined anthers umbrella-shaped. Stigmas subequaling style. Fl. and fr. Jul-Sep.
Dunes, saline-alkaline deserts. N Xinjiang [Kazakhstan, Russia (SE European part); SW Asia (Caucasus)].
灰綠叉毛蓬生長環境
主要生長於沙丘、鹽鹼土荒漠中。