須彌芥·檢視原始碼討論檢視歷史
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須彌芥( xū mí jiè)，學名 Crucihimalaya himalaica (Edgeworth) Al-Shehbaz et al.，俗名：喜馬拉雅鼠耳芥，
異名：Arabidopsis himalaica Arabis himalaica Arabis rupestris Arabidopsis brevicaulis Arabis brevicaulis Sisymbrium rupestre Hesperis himalaica Sisymbrium himalaicum Arabidopsis himalaica var. integrifolia Arabidopsis himalaica var. harrissii Arabidopsis himalaica var. rupestris ，十字花科須彌芥屬（Crucihimalaya）高山植物。
二年生或多年生草本，高20-60厘米，全株被單毛與2叉毛。莖單一或叢生，直立，多數分枝，下部常為紫色，
莖下部的莖生葉長圓狀橢圓形，頂端急尖，邊緣有疏齒，基部漸窄成柄；上部的長圓形，頂端尖，邊緣有波狀齒，
基部抱莖，再向上則變為苞葉。花序傘房狀，結果時伸長；花梗長1.5-8毫米；花瓣淡紅色，
長圓狀橢圓形，爪部窄，果梗長10-12毫米，展開，有時略偏向1側。種子每室1行，橢圓形，棕色。花期6月。
產雲南，四川西南部、西藏。生於溝谷，沖積扇、沙灘，海拔2000-3000米。[1]
形態特徵
二年生或多年生草本，高20-60厘米，全株被單毛與2叉毛。莖單一或叢生，直立，多數分枝，
下部常為紫色，莖下部的莖生葉長圓狀橢圓形，頂端急尖，邊緣有疏齒，基部漸窄成柄；
上部的長圓形，頂端尖，邊緣有波狀齒，基部抱莖，再向上則變為苞葉。花序傘房狀，
結果時伸長；花梗長1.5-8毫米；萼片長約2.2毫米；花瓣淡紅色，長圓狀橢圓形，爪部窄，長約3毫米；
子房無毛。長角果長1.5-2.7厘米，寬0.5-0.6毫米；果梗長10-12毫米，展開，
有時略偏向1側。種子每室1行，橢圓形，長約0.5毫米，棕色。花期6月。
Arabis himalaica Edgeworth, Trans. Linn. Soc. London 20: 31. 1846; Arabidopsis brevicaulis (Jafri) Jafri; A. himalaica (Edgeworth) O. E. Schulz; A. himalaica var. harrissii O. E. Schulz; A. himalaica var. integrifolia O. E. Schulz; A. himalaica var. rupestris (Edgeworth) O. E. Schulz; Arabis brevicaulis Jafri; A. rupestris Edgeworth; Hesperis himalaica (Edgeworth) Kuntze; Sisymbrium himalaicum (Edgeworth) J. D. Hooker & Thomson; S. rupestre (Edgeworth) J. D. Hooker & Thomson.
Herbs annual or biennial, very rarely perennial, (3-)10-50(-70) cm tall. Stems erect, simple or few to many branched at base, densely pubescent with coarse, stalked, stellate and forked trichomes, often basally hirsute with horizontal, simple or forked trichomes to 1.8 mm, rarely glabrescent distally. Basal leaves rosulate, petiolate, often withered by fruiting; petiole (0.3-)0.7-1.5(-2) cm, often ciliate; leaf blade spatulate, oblanceolate, ovate, or oblong, (0.4-)1-3(-4) cm × 2-10(-14) mm, densely pubescent with coarse, stalked, stellate and forked trichomes, margin coarsely dentate or rarely subentire, apex obtuse.
Middle cauline leaves oblong, rarely ovate or lanceolate, sessile, 0.5-2.5(-3.2) cm × 2-7(-11) mm, pubescent as basal leaves, rarely glabrescent, base auriculate or rarely sagittate, margin coarsely dentate or rarely entire, apex acute. Racemes bracteate along entire length or only lowermost few flowers bracteate. Fruiting pedicels slender, stellate pubescent laterally and abaxially, glabrous adaxially, divaricate, (1-)2-7(-11) mm. Sepals often pink, oblong, 1.5-2.5(-3) × 0.7-1 mm, densely pubescent, sometimes narrowly membranous.
Petals purple, pink, or rarely white, spatulate, 2-3.5(-5) × (0.6-)1-1.5(-2) mm, attenuate to base; claw to 1 mm. Filaments 1.5-3 mm; anthers oblong, 0.3-0.5 mm. Ovules 50-110 per ovary. Fruit linear, terete, straight or rarely slightly curved, erect or divaricate-ascending, (0.8-)1.5-3.5(-4.5) cm × (0.4-)0.5-0.8(-1) mm; valves glabrous or rarely puberulent, with an obscure or rarely prominent midvein; style (0.1-)0.4-0.6 mm. Seeds brown, oblong, 0.5-0.8 × 0.2-0.4 mm. Fl. (Mar)Apr-Sep, fr. Jun-Oct. 2n = 16.
分類文獻
Arabidopsis himalaica (Edgew.) O. E. Schulz in Engl. Pflanzenr. 86 (4. 105) 283. 1924. ——Arabis himalaica Edgew. in Trans. Linn. Soc. 20: 31. 1851. emend. ——Sisymbrium himalaica Hook. f. et Thoms. in Journ. Linn. Soc. Bot. 5: 160. 1861; Hook. f. et T. Anders. in Hook. f. Fl. Brit. Ind. 1: 147. 1872.
產地生境
產雲南，四川西南部、西藏。生於溝谷，沖積扇、沙灘，海拔2000-3000米。錫金，
克什米爾地區，印度北部及喜馬拉雅山東部均有分布。模式標本采自喜馬拉雅山東部。
同屬物種
須彌芥屬包括9個物種，其中中國有6種分布：
柔毛須彌芥（Crucihimalaya mollissima）
毛果須彌芥（Crucihimalaya lasiocarpa）
直須彌芥（Crucihimalaya stricta）
須彌芥（Crucihimalaya himalaica）
腋花須彌芥（Crucihimalaya axillaris）
卵葉須彌芥（Crucihimalaya wallichii）